| Identification | More | [Name]
SELENOUREA | [CAS]
630-10-4 | [Synonyms]
SELENOUREA
Slelnium urea
2-seleno-ure
2-Selenourea
Carbamimidoselenoic acid
carbamimidoselenoicacid
Rcra waste number P103
rcrawastenumberp103
Selenoharnstoff(1.Form)
seleno-ure
Selenouronium
Urea, seleno-
Selenouren
SELENOUREA 99+%
SELENOUREA, 99.99% (METALS BASIS)
SELENOUREA, 99.9+%
Selenoharnstoff(2. Form)
Selenourea, 99.9+% (metals basis)
Selenourea, 99.97% (metals basis)
Diaminomethaneselone | [EINECS(EC#)]
211-129-9 | [Molecular Formula]
CH4N2Se | [MDL Number]
MFCD00008065 | [Molecular Weight]
123.02 | [MOL File]
630-10-4.mol |
| Chemical Properties | Back Directory | [Appearance]
slightly pink to grey crystalline needles | [Melting point ]
210-215 °C (dec.) | [Boiling point ]
200°C (rough estimate) | [storage temp. ]
2-8°C
| [form ]
solid | [color ]
pink | [Water Solubility ]
Soluble in water, alcohol and ether. | [Sensitive ]
Air & Moisture Sensitive | [BRN ]
1734744 | [Exposure limits]
ACGIH: TWA 0.2 mg/m3
NIOSH: IDLH 1 mg/m3; TWA 0.2 mg/m3 | [CAS DataBase Reference]
630-10-4(CAS DataBase Reference) | [EPA Substance Registry System]
Selenourea (630-10-4) |
| Safety Data | Back Directory | [Hazard Codes ]
T,N | [Risk Statements ]
R23/25:Toxic by inhalation and if swallowed .
R33:Danger of cumulative effects.
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment . | [Safety Statements ]
S20/21:When using, do not eat, drink or smoke .
S28:After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet . | [RIDADR ]
UN 3283 6.1/PG 2
| [WGK Germany ]
3
| [RTECS ]
YU1820000
| [F ]
8-10-23 | [TSCA ]
Yes | [HazardClass ]
6.1 | [PackingGroup ]
II | [HS Code ]
29310099 | [Safety Profile]
Poison by ingestion and intravenous routes. When heated to decomposition it emits very toxic fumes of NO, and Se. See also SELENIUM COMPOUNDS | [Hazardous Substances Data]
630-10-4(Hazardous Substances Data) |
| Hazard Information | Back Directory | [General Description]
Solid. | [Health Hazard]
TOXIC; 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 Hazard]
Non-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. | [Chemical Properties]
slightly pink to grey crystalline needles | [Uses]
Selenourea 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. | [Definition]
ChEBI: Selenourea is a member of ureas and a one-carbon compound. It is functionally related to a urea. | [Purification Methods]
Recrystallise 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.] |
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INTATRADE GmbH
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Alfa Aesar
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Energy Chemical
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Maya High Purity Chemicals
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