SELENOUREA

SELENOUREA Basic information
Product Name:SELENOUREA
Synonyms:Selenourea, 99.97% (metals basis);SELENOUREA;Slelnium urea;Selenouren;SELENOUREA 99+%;SELENOUREA, 99.99% (METALS BASIS);SELENOUREA, 99.9+%;Diaminomethaneselone
CAS:630-10-4
MF:CH4N2Se
MW:123.02
EINECS:211-129-9
Product Categories:Organic Building Blocks;Selenium Compounds;organoselenides;Building Blocks;Building Blocks;Chemical Synthesis;Organic Building Blocks;Selenium Compounds
Mol File:630-10-4.mol
SELENOUREA Structure
SELENOUREA Chemical Properties
Melting point 210-215 °C (dec.)
Boiling point 200°C (rough estimate)
storage temp. 2-8°C
solubility DMSO (Slightly, Heated)
form solid
color pink
Water Solubility Soluble in water, alcohol and ether.
Sensitive Air & Moisture Sensitive
BRN 1734744
Exposure limitsACGIH: TWA 0.2 mg/m3
NIOSH: IDLH 1 mg/m3; TWA 0.2 mg/m3
CAS DataBase Reference630-10-4(CAS DataBase Reference)
EPA Substance Registry SystemSelenourea (630-10-4)
Safety Information
Hazard Codes T,N
Risk Statements 23/25-33-50/53
Safety Statements 20/21-28-45-60-61
RIDADR UN 3283 6.1/PG 2
WGK Germany 3
RTECS YU1820000
8-10-23
TSCA Yes
HazardClass 6.1
PackingGroup II
HS Code 29310099
Hazardous Substances Data630-10-4(Hazardous Substances Data)
MSDS Information
ProviderLanguage
ACROS English
SigmaAldrich English
ALFA English
SELENOUREA Usage And Synthesis
Chemical Propertiesslightly pink to grey crystalline needles
UsesSelenourea is used in the synthesis of selenium heterocycles, which exhibit anti-inflammatory and anti-tumor activity. It acts as an effective ligand and form complexes with transition metals and metalloids.
DefinitionChEBI: Selenourea is a member of ureas and a one-carbon compound. It is functionally related to a urea.
General DescriptionSolid.
Health HazardTOXIC; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.
Fire HazardNon-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated.
Safety ProfilePoison by ingestion and intravenous routes. When heated to decomposition it emits very toxic fumes of NO, and Se. See also SELENIUM COMPOUNDS
Purification MethodsRecrystallise it from the least volume of H2O using Norite (preferably under N2) to form colourless needles which are dried over P2O5. It is air and light sensitive. It slowly turns moderately dark on storage even below 0o. [King & Hlavacek J Am Chem Soc 73 1864 1951, Dunbar & Painter J Am Chem Soc 69 1833 1947, Bacher & Bos Recl Trav Chim Pays Bas 62 580 1943, Hope Acta Chem Scand 18 1800 1964.] The Se-methyl iodide provides yellow crystals from EtOH/Et2O with m 187-188o(dec). The N,N-dimethyl derivative crystallises from H2O or EtOH as colourless needles which slowly turn pink, then gray on standing, and although slightly soluble in *benzene it can be recrystallised from it and has m 167-170o(dec) [Zingaro et al. J Org Chem 18 292 1953, IR: Jensen & Nielsen Acta Chem Scand 20 597 1966, Beilstein 3 IV 435.]
SELENOUREA Preparation Products And Raw materials
Raw materialsSelenium monohydride-->METHYL AMINOMETHANIMIDOTHIOATE HYDROIODIDE-->Selenium-->Diethyl ether-->Water-->Cyanamide-->2-METHYL-2-THIOPSEUDOUREA SULFATE
Preparation ProductsHydrochloric acid
Selenium Oxychloride Selenium DIETHYLDISELENIDE PHENYLSELENOL SELENIUM CHLORIDE Selenium sulfide 1,1-diethyl-2-selenourea SELENOUREA-13C, 15N1 AKOS BC-1828 1-IMIDAZOLIDINEACETIC ACID, 4-((4-CHLOROPHENYL)METHYLENE)-5-OXO-2-SELE NOXO- 1,1-DIMETHYL-2-SELENOUREA,N,N-DIMETHYL-2-SELENOUREA SELENOSEMICARBAZIDE Selenious acid N,N'-DIETHYLSELENOUREA DIMETHYLSELENOUREA (aminoiminomethyl)selenourea ,N-(Aminoiminomethyl)selenourea 1,3-dimethyl-2-selenourea SELENOUREA

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