selenourea

CAS No. 630-10-4

Formula: CH4N2Se
Basic Info

Selenourea is the organoselenium compound with the formula SeC(NH2)2. It is a white solid. This compound features a rare example of a stable, unhindered carbon-selenium double bond. The compound is used in the synthesis of selenium heterocycles. Compared to urea, the oxo-analog of selenourea, few studies have been done on the compound due to the instability and toxicity of selenium compounds.

Formula
CH4N2Se
Molecular Weight
123.016
Exact Mass
123.954
LogP
-0.3272
PSA
52.04
Synonyms

λ<sup>1</sup>-selanylmethanimidamide

Selenouronium

Urea,seleno

EINECS 211-129-9

Selenourea

2-Selenourea

Carbamimidoselenoic acid

Selenoharnstoff

RCRA waste no. P103

selenocarbamate

RCRA waste number P103

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Properties
Appearance & Physical State
slightly pink to grey crystalline needles
Boiling Point
230.913ºC at 760 mmHg
Melting Point
210-215ºC (dec.)
Flash Point
93.453ºC
Storage Condition
2-8ºC
Safety Info
RTECS
YU1820000
Safety Statements
S20/21; S28; S45
WGK Germany
3
Risk Statements
R23/25; R33; R50/53
RIDADR
UN 3283 6.1/PG 2
Hazard Class
6.1
Packing Group
II
Hazard Codes
Spectrum
NMR Spectrum 1H NMR : Predict
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Synthesis Route
Toxicity
ACUTE TOXICITY DATA
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Type of Test
LD50 - Lethal dose, 50 percent kill
Exposure Route
Oral
Species Observed
Rodent - rat
Dose/Duration
50 mg/kg
Toxic Effects
Behavioral--somnolence (general depressed activity)<br>Lungs, Thorax, or Respiration--dyspnea<br>Gastrointestinal--hypermotility, diarrhea
Reference
Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 20,89,1971
ACUTE TOXICITY DATA
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Type of Test
LD50 - Lethal dose, 50 percent kill
Exposure Route
Intravenous
Species Observed
Rodent - mouse
Dose/Duration
56 mg/kg
Toxic Effects
Details of toxic effects not reported other than lethal dose value--
Reference
U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) Volume(issue)/page/year: NX#05665

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