CAS No. 22457-23-4

Formula: C8H17NO
Basic Info

Stemone is a compound that has a leafy, green, fresh odour, and is commonly used in perfume formulations.

Molecular Weight
Exact Mass

5-methyl-3-heptanone oxime

3-Methyl-5-heptanone oxime



Ethyl 2-methylbutyl ketoxine

EINECS 245-010-8

Ethyl 2-methylbutyl ketoxime

5-Methylheptan-3-one oxime

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Boiling Point
220.8ºC at 760mmHg
Flash Point
Refractive Index
Vapor Pressure
0.0414mmHg at 25°C
Safety Info
HS Code
SDS 1.0
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According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017


1.1 GHS Product identifier

Product name N-(5-methylheptan-3-ylidene)hydroxylamine

1.2 Other means of identification

Product number -
Other names 5-methyl-3-heptanone oxime

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Fragrances
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

Eye irritation, Category 2

2.2 GHS label elements, including precautionary statements

Signal word


Hazard statement(s)

H319 Causes serious eye irritation

Precautionary statement(s)

P264 Wash ... thoroughly after handling.

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


P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

P337+P313 If eye irritation persists: Get medical advice/attention.





2.3 Other hazards which do not result in classification


3.Composition/information on ingredients

3.1 Substances

Chemical name Common names and synonyms CAS number EC number Concentration
N-(5-methylheptan-3-ylidene)hydroxylamine N-(5-methylheptan-3-ylidene)hydroxylamine 22457-23-4 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

If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician.

In case of skin contact

Wash off with soap and plenty of water. Consult a physician.

In case of eye contact

Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician.

If swallowed

Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.

4.2 Most important symptoms/effects, acute and delayed

no data available

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

no data available

5.Fire-fighting measures

5.1 Extinguishing media

Suitable extinguishing media

Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.

5.2 Specific hazards arising from the chemical

no data available

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

Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided.

6.3 Methods and materials for containment and cleaning up

Pick up and arrange disposal. Sweep up and shovel. Keep in suitable, closed containers for disposal.

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

Store in cool place. Keep container tightly closed in a dry and well-ventilated place.

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 no data available
Colour no data available
Odour no data available
Melting point/ freezing point no data available
Boiling point or initial boiling point and boiling range 220.8ºC at 760mmHg
Flammability no data available
Lower and upper explosion limit / flammability limit no data available
Flash point 119.6ºC
Auto-ignition temperature no data available
Decomposition temperature no data available
pH no data available
Kinematic viscosity no data available
Solubility no data available
Partition coefficient n-octanol/water (log value) no data available
Vapour pressure 0.0414mmHg at 25°C
Density and/or relative density 0.89g/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

Stable under recommended storage conditions.

10.3 Possibility of hazardous reactions

no data available

10.4 Conditions to avoid

no data available

10.5 Incompatible materials

no data available

10.6 Hazardous decomposition products

no data available

11.Toxicological information

Acute toxicity

  • Oral: no data available
  • Inhalation: no data available
  • 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


no data available

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: no data available
  • Toxicity to daphnia and other aquatic invertebrates: no data available
  • Toxicity to algae: no data available
  • Toxicity to microorganisms: no data available

12.2 Persistence and degradability

no data available

12.3 Bioaccumulative potential

no data available

12.4 Mobility in soil

no data available

12.5 Other adverse effects

no data available

13.Disposal considerations

13.1 Disposal methods


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: no data available IMDG: no data available IATA: no data available

14.2 UN Proper Shipping Name

ADR/RID: no data available
IMDG: no data available
IATA: no data available

14.3 Transport hazard class(es)

ADR/RID: no data available IMDG: no data available IATA: no data available

14.4 Packing group, if applicable

ADR/RID: no data available IMDG: no data available IATA: no data available

14.5 Environmental hazards

ADR/RID: no IMDG: no IATA: no

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
N-(5-methylheptan-3-ylidene)hydroxylamine N-(5-methylheptan-3-ylidene)hydroxylamine 22457-23-4 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 Not 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) Listed.

16.Other information

Information on revision

Creation Date Aug 19, 2017
Revision Date Aug 19, 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%


  • 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.
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    Version 1.2
    Regulation (EC) No 1907/2006

    1 - Product and Company Information

    Product Name        5-METHYL-3-HEPTANONE OXIME - 250 MG    

    2 - Hazards Identification

    Not hazardous according to Directive 67/548/EEC.

    3 - Composition/Information on Ingredients

    Product Name        CAS #        EC no        Annex I    
    Index Number
    5-METHYL-3-HEPTANONE OXIME        22457-23-4 245-010-8 None    
    Formula        C8H17NO    
    Molecular Weight 143,2300 AMU
    Synonyms        3-Heptanone, 5-methyl-, oxime, * Ethyl    
    2-methylbutyl ketoxine

    4 - First Aid Measures

    If inhaled, remove to fresh air. If breathing becomes difficult,
    call a physician.
    In case of contact, immediately wash skin with soap and copious
    amounts of water.
    In case of contact with eyes, flush with copious amounts of
    water for at least 15 minutes. Assure adequate flushing by
    separating the eyelids with fingers. Call a physician.
    If swallowed, wash out mouth with water provided person is
    conscious. Call a physician.

    5 - Fire Fighting Measures
    ALDRICH        www.molbase.com    

    Suitable: Water spray. Carbon dioxide, dry chemical powder, or
    appropriate foam.
    Specific Hazard(s): Emits toxic fumes under fire conditions.
    Wear self-contained breathing apparatus and protective clothing
    to prevent contact with skin and eyes.

    6 - Accidental Release Measures

    Absorb on sand or vermiculite and place in closed containers for
    disposal. Ventilate area and wash spill site after material
    pickup is complete.

    7 - Handling and Storage

    Directions for Safe Handling: Avoid inhalation. Avoid contact
    with eyes, skin, and clothing. Avoid prolonged or repeated
    Conditions of Storage: Keep tightly closed.

    8 - Exposure Controls / Personal Protection

    Safety shower and eye bath. Mechanical exhaust required.
    Wash thoroughly after handling.
    Respiratory Protection: Use respirators and components tested and
    approved under appropriate government standards such as NIOSH (US)
    or CEN (EU). Respiratory protection is not required. Where
    protection is desired, use multi-purpose combination (US) or type
    ABEK (EN 14387) respirator cartridges.
    Hand Protection: Protective gloves.
    Eye Protection: Chemical safety goggles.

    9 - Physical and Chemical Properties

    Appearance        Physical State: Liquid    
    Property        Value        At Temperature or Pressure    
    pH        N/A    
    BP/BP Range        N/A    
    MP/MP Range        N/A    
    Flash Point        N/A    
    Flammability        N/A    
    Autoignition Temp        N/A    
    Oxidizing Properties        N/A    
    Explosive Properties        N/A    
    ALDRICH        www.molbase.com    
    Explosion Limits        N/A    
    Vapor Pressure        N/A    
    Partition Coefficient Log Kow: 2,871
    Viscosity        N/A    
    Vapor Density        N/A    
    Saturated Vapor Conc. N/A
    Evaporation Rate        N/A    
    Bulk Density        N/A    
    Decomposition Temp.        N/A    
    Solvent Content        N/A    
    Water Content        N/A    
    Surface Tension        N/A    
    Conductivity        N/A    
    Miscellaneous Data        N/A    
    Solubility        N/A    

    10 - Stability and Reactivity

    Stable: Stable.
    Materials to Avoid: Strong oxidizing agents.
    Hazardous Decomposition Products: Carbon monoxide, Carbon dioxide,
    Nitrogen oxides.
    Hazardous Polymerization: Will not occur

    11 - Toxicological Information

    3800,000000 mg/kg
    Sensitization: Possible sensitizer.
    Skin: Prolonged or repeated exposure may cause allergic
    reactions in certain sensitive individuals. The preceding data,
    or interpretation of data, was determined using Quantitative
    Structure Activity Relationship (QSAR) modeling.
    To the best of our knowledge, the chemical, physical, and
    toxicological properties have not been thoroughly investigated.
    Skin Contact: May cause skin irritation.
    Skin Absorption: May be harmful if absorbed through the skin.
    Eye Contact: May cause eye irritation.
    Inhalation: Material may be irritating to mucous membranes and
    upper respiratory tract. May be harmful if inhaled.
    Ingestion: May be harmful if swallowed.

    12 - Ecological Information

    No data available.
    ALDRICH        www.molbase.com    

    13 - Disposal Considerations

    Contact a licensed professional waste disposal service to dispose
    of this material. Dissolve or mix the material with a combustible
    solvent and burn in a chemical incinerator equipped with an
    afterburner and scrubber. Observe all federal, state, and local
    environmental regulations.

    14 - Transport Information

    Non-hazardous for road transport.
    Non-hazardous for sea transport.
    Non-hazardous for air transport.

    15 - Regulatory Information

    Not hazardous according to Directive 67/548/EEC.

    16 - Other Information

    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. Inc.,
    shall not be held liable for any damage resulting from handling or
    from contact with the above product. See reverse side of invoice
    or packing slip for additional terms and conditions of sale.
    Copyright 2010 Co. License granted to make
    unlimitedpaper copies for internal use only.
    For R&D use only. Not for drug, household or other uses.
    ALDRICH        www.molbase.com    

NMR Spectrum 1H NMR : Predict
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