116-06-3 structure, C7H14N2O2S

aldicarb

CAS No.

116-06-3

Formula:

C7H14N2O2S

Basic Info

Aldicarb is a carbamate insecticide which is the active substance in the pesticide Temik. It is effective against thrips, aphids, spider mites, lygus, fleahoppers, and leafminers, but is primarily used as a nematicide. Aldicarb is a cholinesterase inhibitor which prevents the breakdown of acetylcholine in the synapse. In case of severe poisoning, the victim dies of respiratory failure.
Aldicarb is one of the most widely used pesticides internationally, and is also one of the most environmentally toxic. Aldicarb poisoning from agricultural water runoff has led to the destruction of healthy ecosystems and the irreversible poisoning of fertile agricultural land. Poisoning from this pesticide is also believed to be linked to high cancer rates in communities located around the Aral Sea.
Aldicarb is effective where resistance to organophosphate insecticides has developed, and is extremely important in potato production, where it is used for the control of soil-borne nematodes and some foliar pests. Its high level of solubility restricts its use in certain areas where the water table is close to the surface.

Formula
C7H14N2O2S
Molecular Weight
190.263
Exact Mass
190.078
LogP
1.8607
PSA
75.99
Synonyms

oms-771

TEMIK

Aldecarb

Temek

Aldicarb

(EZ)-2-methyl-2-(methylthio)propionaldehyde O-methylcarbamoyloxime

temikg10

(5Ξ)-7,7-dimethyl-4-oxa-8-thia-2,5-diazanon-5-en-3-one

temik10g

temikg

2-methyl-2-(methylthio)propanal O-[(methylamino)carbonyl]oxime

Temic

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Properties

Appearance & Physical State
COLOURLESS CRYSTALS.
Density
1.08 g/cm3
Melting Point
100ºC
Flash Point
>100ºC
Refractive Index
1.492
Storage Condition
APPROX 4ºC

Safety Info

RTECS
DH1485000
Safety Statements
S22; S36/37; S45; S60; S61; S26
WGK Germany
3
Risk Statements
R24; R26/28; R50/53
HS Code
2930909052
RIDADR
UN 2811
Hazard Class
6.1(a)
Hazard Codes

MSDS

SDS 1.0
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SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name aldicarb

1.2 Other means of identification

Product number -
Other names oms-771

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Insecticide
Uses advised against no data available

1.4 Supplier's details

Company MOLBASE (Shanghai) Biotechnology Co., Ltd.
Address Floor 4 & 5, Building 12, No. 1001 North Qinzhou Road,
Xuhui District, Shanghai, China
Telephone +86(21)64956998
Fax +86(21)54365166

1.5 Emergency phone number

Emergency phone number +86-400-6021-666
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

2.Hazard identification

2.1 Classification of the substance or mixture

Acute toxicity - Oral, Category 2

Acute toxicity - Dermal, Category 3

Acute toxicity - Inhalation, Category 2

Hazardous to the aquatic environment, short-term (Acute) - Category Acute 1

Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 1

2.2 GHS label elements, including precautionary statements

Pictogram(s)
Signal word

Danger

Hazard statement(s)

H300 Fatal if swallowed

H311 Toxic in contact with skin

H330 Fatal if inhaled

H410 Very toxic to aquatic life with long lasting effects

Precautionary statement(s)
Prevention

P264 Wash ... thoroughly after handling.

P270 Do not eat, drink or smoke when using this product.

P280 Wear protective gloves/protective clothing/eye protection/face protection.

P260 Do not breathe dust/fume/gas/mist/vapours/spray.

P271 Use only outdoors or in a well-ventilated area.

P284 [In case of inadequate ventilation] wear respiratory protection.

P273 Avoid release to the environment.

Response

P301+P310 IF SWALLOWED: Immediately call a POISON CENTER/doctor/…

P321 Specific treatment (see ... on this label).

P330 Rinse mouth.

P302+P352 IF ON SKIN: Wash with plenty of water/...

P312 Call a POISON CENTER/doctor/…if you feel unwell.

P361+P364 Take off immediately all contaminated clothing and wash it before reuse.

P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.

P310 Immediately call a POISON CENTER/doctor/…

P320 Specific treatment is urgent (see ... on this label).

P391 Collect spillage.

Storage

P405 Store locked up.

P403+P233 Store in a well-ventilated place. Keep container tightly closed.

Disposal

P501 Dispose of contents/container to ...

2.3 Other hazards which do not result in classification

none

3.Composition/information on ingredients

3.1 Substances

Chemical name Common names and synonyms CAS number EC number Concentration
aldicarb aldicarb 116-06-3 none 100%

4.First-aid measures

4.1 Description of necessary first-aid measures

General advice

Consult a physician. Show this safety data sheet to the doctor in attendance.

If inhaled

Fresh air, rest. Artificial respiration may be needed. Refer for medical attention. See Notes.

In case of skin contact

Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention . See Notes.

In case of eye contact

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

If swallowed

Give a slurry of activated charcoal in water to drink. Refer for medical attention . See Notes.

4.2 Most important symptoms/effects, acute and delayed

Aldicarb is a carbamate pesticide. It is super toxic; the probable oral lethal dose for humans is less than 5 mg/kg, or a taste (less than 7 drops) for a 150-lb. person. It is extremely toxic by both oral and dermal routes. (EPA, 1998)

4.3 Indication of immediate medical attention and special treatment needed, if necessary

Symptomatic treatment of the carbamate insecticide-poisoned patient, including aggressive respiratory support & the use of atropine to reverse severe muscarinic manifestations, is the same as with organophosphate insecticide poisoning. Because of the shorter duration of effect, atropine therapy is usually required for <24 hr. The principal difference in therapy for carbamate & organophosphate insecticide exposure involves pralidoxime. 2-PAM is relatively contraindicated in carbamate insecticide poisoning, because it may enhance acetylcholinesterase inactivation. After mixed or combined exposures involving both organophosphate & carbamate insecticides or in severe poisonings with an unidentified anticholinesterase agent, it is reasonable cautiously to administer 2-PAM. /Carbamate insecticides/

5.Fire-fighting measures

5.1 Extinguishing media

Suitable extinguishing media

Move the container of aldicarb from the fire area, if possible, and fight the fire from the maximum distance, using agents suitable for the type of surrounding fire. In case of small fires, use dry chemical powder, carbon dioxide, water spray, or standard foam. For larger fires, use water spray, fog, or standard foam. Thermal decomposition products may include toxic oxides of nitrogen, sulfur, and carbon. Avoid breathing toxic dusts and fumes from burning material.

5.2 Specific hazards arising from the chemical

When heated to decomposition, it emits very toxic fumes of nitrogen oxides and sulfur oxides. Incompatible with highly alkaline substances. Unstable in alkali; poor stability at 122F. (EPA, 1998)

5.3 Special protective actions for fire-fighters

Wear self-contained breathing apparatus for firefighting if necessary.

6.Accidental release measures

6.1 Personal precautions, protective equipment and emergency procedures

Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8.

6.2 Environmental precautions

Personal protection: chemical protection suit including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations.

6.3 Methods and materials for containment and cleaning up

In case of spillage during storage or transport, isolate the affected area, cover the spills with a sweeping compound, and post danger signs. Cover the area with suitable sheets, transfer spoiled material in reclaim containers for disposal. Decontaminate the area with 5% sodium hydroxide solution. Use all personal protective devices for handling spills. All tools and equipment should be decontaminated, rinsed, and dried. All clothing should be laundered.

7.Handling and storage

7.1 Precautions for safe handling

Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2.

7.2 Conditions for safe storage, including any incompatibilities

Provision to contain effluent from fire extinguishing. Separated from food and feedstuffs.Store aldicarb indoors in an isolated, well-ventilated, clean, dry, cool area (not above 46°C). Store away from incompatible substances, such as highly alkaline materials. Aldicarb should be stored in a manner that will preclude mixing with water, because the resultant solution may be seriously hazardous. Do not store near food, animal feed, or other items intended for human or animal consumption. Make certain that the storage area is inaccessible to children.

8.Exposure controls/personal protection

8.1 Control parameters

Occupational Exposure limit values

no data available

Biological limit values

no data available

8.2 Appropriate engineering controls

Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.

8.3 Individual protection measures, such as personal protective equipment (PPE)

Eye/face protection

Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).

Skin protection

Wear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it.

Respiratory protection

Wear dust mask when handling large quantities.

Thermal hazards

no data available

9.Physical and chemical properties

Physical state COLOURLESS CRYSTALS.
Colour Crystals from isopropyl ether
Odour Slightly sulfurous odor
Melting point/ freezing point 100ºC
Boiling point or initial boiling point and boiling range Decomposes
Flammability Combustible. Gives off irritating or toxic fumes (or gases) in a fire.
Lower and upper explosion limit / flammability limit no data available
Flash point >100ºC
Auto-ignition temperature no data available
Decomposition temperature no data available
pH no data available
Kinematic viscosity no data available
Solubility 0.1 to 1.0 mg/mL at 22.22°C
Partition coefficient n-octanol/water (log value) log Kow = 1.13
Vapour pressure Less than 0.5 at 68F (EPA, 1998)
Density and/or relative density 1.08 g/cm3
Relative vapour density no data available
Particle characteristics no data available

10.Stability and reactivity

10.1 Reactivity

no data available

10.2 Chemical stability

Aldicarb is stable under normal storage conditions and in acidic media but decomposes rapidly in alkaline media and at temperatures above 100°C.

10.3 Possibility of hazardous reactions

Aldicarb is ... considered a negligible fire hazard. It is non-flammable and is difficult to ignite, but may burn if exposed to flames. Aldicarb should be kept away from open flames.ALDICARB is a carbamate ester. This chemical decomposes at temperatures greater than 100°C. This chemical is incompatible with highly alkaline substances. It is rapidly converted by oxidizing agents.

10.4 Conditions to avoid

no data available

10.5 Incompatible materials

Incompatible with alkaline materials.

10.6 Hazardous decomposition products

When heated to decomposition it emits very toxic fumes of /nitrogen oxides and sulfur oxides/.

11.Toxicological information

Acute toxicity

  • Oral: LD50 Rat oral 0.650 mg/kg
  • Inhalation: LC50 Rat inhalation 200 mg/cu m/5 hr
  • Dermal: no data available

Skin corrosion/irritation

no data available

Serious eye damage/irritation

no data available

Respiratory or skin sensitization

no data available

Germ cell mutagenicity

no data available

Carcinogenicity

Evaluation: No data were available from studies in humans. There is inadequate evidence for the carcinogenicity of aldicarb in experimental animals. Overall evaluation: Aldicarb is not classifiable as to its carcinogenicity to humans (Group 3).

Reproductive toxicity

no data available

STOT-single exposure

no data available

STOT-repeated exposure

no data available

Aspiration hazard

no data available

12.Ecological information

12.1 Toxicity

  • Toxicity to fish: LC50; Species: Pimephales promelas (Fathead minnow); Conditions: flow through bioassay; Concentration: 1370 ug/L for 96 hr
  • Toxicity to daphnia and other aquatic invertebrates: EC50; Species: Daphnia magna (Water flea) 1st instar; Conditions: freshwater, static; Concentration: 410.7 ug/L for 48 hr (95% confidence interval: 338.3-498.6 ug/L); Effect: intoxication, immobilization /100% purity
  • Toxicity to algae: no data available
  • Toxicity to microorganisms: no data available

12.2 Persistence and degradability

Aldicarb has been extensively studied both in the laboratory under controlled conditions and in the field(1). Under aerobic conditions, it has been shown to oxidize at the sulfur atom to form first the sulfoxide, followed by further oxidation to the sulfone. Under anaerobic conditions, reduction to the corresponding aldehyde and nitrile is the proposed degradation pathway. It has not been definitively shown that these reactions are abiotic or biotic(1). Mineralization half-lives for the aerobic incubation of aldicarb were 20-361 days in surface soils up to 30 cm depth, and 131-233 days (223-1130 days anaerobic) in subsurface soils between 20 and 183 cm in depth(2). Metabolites detected in aerobic soils included aldicarb sulfoxide and sulfone and their oximes and aldicarb sulfoxide nitrile; under anaerobic conditions no aldicarb sulfone or its degradation products were detected(2). Aldicarb did not degrade in sterile or unsterile groundwater under anaerobic conditions in 60-65 days at pH 5.2 and 6.0 or in 40 days in aerated groundwater at pH 7.6 (with or without added sieved limestone)(3). In unfiltered anaerobic groundwater and anaerobic groundwater amended with limestone and filtered with membrane filters to remove microorganisms, the half-lives of aldicarb were 62 and 433 days, respectively(4). Using this same groundwater, but aerated with sterile air under laboratory conditions, the half-life of aldicarb ranged from 34 to 94 days at pH 8.5(4). Aldicarb sulfoxide and aldicarb sulfone degraded more rapidly, with half-lives in the range of 10-47 days (sulfoxide) and 4-32 days (sulfone) under aerobic conditions. Under anaerobic conditions the half-lives ranged from 25-32 days (sulfoxide) and 26-109 days (sulfone)(4). Aldicarb sulfoxide has been shown to be reduced to aldicarb in groundwater under anaerobic conditions in groundwater to which glucose had been added(4). Aldicarb degraded faster in soil which had been previously treated with carbofuran. After 1 day, 68% of aldicarb applied remained in soil not treated with carbofuran, whereas 16% remained in soil treated 4 times with carbofuran between 1-13 weeks prior to treatment with aldicarb. Zero% remained in soil treated once with carbofuran 13 weeks prior to treatment with aldicarb(5).

12.3 Bioaccumulative potential

An estimated BCF of 3 was calculated in fish for aldicarb(SRC), using a log Kow of 1.13(1) and a regression-derived equation(2). According to a classification scheme(3), this BCF suggests the potential for bioconcentration in aquatic organisms is low(SRC). Aldicarb had mean log bioconcentration ratios of 0.263 and -0.92 for plant/soil in above and below ground plants, respectively(4).

12.4 Mobility in soil

Koc values for aldicarb have been reported from data in the UK database in 1993 to range from 7 to 80(1). Measured Koc values have also been reported as 30(2) and 32(3). In Valois sand (30.1% sand, 55.2% silt, 14.7% clay, 1.64% organic carbon) the Koc was 22(4). According to a classification scheme(5), these Koc values suggest that aldicarb is expected to have very high to high mobility in soil. Aldicarb and its metabolites are rapidly degraded in soils, which can limit the mobility and leaching potential of these compounds(6-8).

12.5 Other adverse effects

no data available

13.Disposal considerations

13.1 Disposal methods

Product

The material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal. Do not discharge to sewer systems.

Contaminated packaging

Containers can be triply rinsed (or equivalent) and offered for recycling or reconditioning. Alternatively, the packaging can be punctured to make it unusable for other purposes and then be disposed of in a sanitary landfill. Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.

14.Transport information

14.1 UN Number

ADR/RID: UN2811 IMDG: UN2811 IATA: UN2811

14.2 UN Proper Shipping Name

ADR/RID: TOXIC SOLID, ORGANIC, N.O.S.
IMDG: TOXIC SOLID, ORGANIC, N.O.S.
IATA: TOXIC SOLID, ORGANIC, N.O.S.

14.3 Transport hazard class(es)

ADR/RID: 6.1(a) IMDG: 6.1(a) IATA: 6.1(a)

14.4 Packing group, if applicable

ADR/RID: unknown IMDG: unknown IATA: unknown

14.5 Environmental hazards

ADR/RID: yes IMDG: yes IATA: yes

14.6 Special precautions for user

no data available

14.7 Transport in bulk according to Annex II of MARPOL 73/78 and the IBC Code

no data available

15.Regulatory information

15.1 Safety, health and environmental regulations specific for the product in question

Chemical name Common names and synonyms CAS number EC number
aldicarb aldicarb 116-06-3 none
European Inventory of Existing Commercial Chemical Substances (EINECS) Listed.
EC Inventory Listed.
United States Toxic Substances Control Act (TSCA) Inventory Listed.
China Catalog of Hazardous chemicals 2015 Listed.
New Zealand Inventory of Chemicals (NZIoC) Listed.
Philippines Inventory of Chemicals and Chemical Substances (PICCS) Listed.
Vietnam National Chemical Inventory Not Listed.
Chinese Chemical Inventory of Existing Chemical Substances (China IECSC) Not Listed.

16.Other information

Information on revision

Creation Date Aug 12, 2017
Revision Date Aug 12, 2017

Abbreviations and acronyms

  • CAS: Chemical Abstracts Service
  • ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
  • RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
  • IMDG: International Maritime Dangerous Goods
  • IATA: International Air Transportation Association
  • TWA: Time Weighted Average
  • STEL: Short term exposure limit
  • LC50: Lethal Concentration 50%
  • LD50: Lethal Dose 50%
  • EC50: Effective Concentration 50%

References

  • IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home
  • HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
  • IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/
  • eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en
  • CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
  • ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
  • ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg
  • Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp
  • ECHA - European Chemicals Agency, website: https://echa.europa.eu/

Disclaimer: The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The information in this document is based on the present state of our knowledge and is applicable to the product with regard to appropriate safety precautions. It does not represent any guarantee of the properties of the product. We as supplier shall not be held liable for any damage resulting from handling or from contact with the above product.

Spectrum

NMR Spectrum 1H NMR : Predict
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Synthesis Route

Related Compound Information