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CAS No.: | 2782-91-4 |
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Name: | Tetramethylthiourea |
Article Data: | 43 |
Molecular Structure: | |
Formula: | C5H12N2S |
Molecular Weight: | 132.23 |
Synonyms: | Thiourea,tetramethyl- (9CI);Urea, 1,1,3,3-tetramethyl-2-thio- (6CI,8CI);1,1,3,3-Tetramethyl-2-thiourea;Basthioryl;N,N,N',N'-Tetramethylthiourea;NSC102499; |
EINECS: | 220-488-0 |
Density: | 1.013 g/cm3 |
Melting Point: | 75-77 °C(lit.) |
Boiling Point: | 245 °C at 760 mmHg |
Flash Point: | 102 °C |
Solubility: | soluble in water |
Appearance: | White crystals |
Hazard Symbols: | Xn |
Risk Codes: | 22-20/21/22 |
Safety: | 22-24/25-36 |
PSA: | 38.57000 |
LogP: | 0.39450 |
IUPAC Name:1,1,3,3-Tetramethylthiourea (2782-91-4)
Synonyms:Tetramethylthiourea ; 1,1,3,3-Tetramethyl-2-thiourea ; 1,1,3,3-Tetramethylthiourea ; ((Ch3)2n)2cs ; 1,1,3,3-Tetramethyl-2-thio-ure ; Basthioryl ; N,N,N',N'-Tetramethylthiourea ; N,N,N’,N’-Tetramethylthioharnstoff
CAS: 2782-91-4
MF: C5H12N2S
MW: 132.23
MS:
EINECS: 220-488-0
Product Categories: Heterocycles;Organic Building Blocks;Sulfur Compounds;Thioureas
Mol File: 2782-91-4.mol
Surface Tension: 40.3 dyne/cm
Density: 1.012 g/cm3
Flash Point: 102 °C
Melting point: 75-77 °C(lit.)
Enthalpy of Vaporization: 48.21 kJ/mol
Boiling Point: 245 °C at 760 mmHg
Vapour Pressure: 0.0294 mmHg at 25°C
Water Solubility: 32 g/L (20 ºC)
BRN : 1744916
Appearance: Tetramethylthiourea (2782-91-4) is colorless to yellow crystalline chunks ,white crystals.
Tetramethylthiourea (2782-91-4) is used in organic synthesis.
Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
---|---|---|---|---|---|
mammal (species unspecified) | LD50 | unreported | 400mg/kg (400mg/kg) | Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 17(3), Pg. 32, 1973. | |
mouse | LDLo | oral | 500mg/kg (500mg/kg) | Teratology, The International Journal of Abnormal Development. Vol. 23, Pg. 335, 1981. | |
rat | LD50 | oral | 920mg/kg (920mg/kg) | Journal of Environmental Pathology and Toxicology. Vol. 2, Pg. 889, 1979. |
Hazard Codes : Xn
Risk Statements : 20/21/22
20/21/22: Harmful by inhalation, in contact with skin and if swallowed
Safety Statements : 22-24/25-36
22: Do not breathe dust
36: Wear suitable protective clothing
24/25: Avoid contact Tetramethylthiourea (2782-91-4) with skin and eyes
WGK Germany: 3
RTECS: YU2750000
HS Code: 29309070
1.Air & Water Reactions:Tetramethylthiourea (2782-91-4) is water soluble.
2.Reactivity Profile: An organosulfide amide. Organosulfides are incompatible with acids, diazo and azo compounds, halocarbons, isocyanates, aldehydes, alkali metals, nitrides, hydrides, and other strong reducing agents. Reactions with these materials generate heat and in many cases hydrogen gas. Many of these compounds may liberate hydrogen sulfide upon decomposition or reaction with an acid. Organic amides/imides react with azo and diazo compounds to generate toxic gases. Flammable gases are formed by the reaction of organic amides/imides with strong reducing agents. Amides are very weak bases (weaker than water). Imides are less basic yet and in fact react with strong bases to form salts. That is, they can react as acids. Mixing amides with dehydrating agents such as P2O5 or SOCl2 generates the corresponding nitrile. The combustion of these compounds generates mixed oxides of nitrogen (NOx).
3.Fire Hazard: Flash point data for Tetramethylthiourea are not available, but Tetramethylthiourea is probably combustible.