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Name	TETRAMETHYLTHIOUREA	EINECS	220-488-0
CAS No.	2782-91-4	Density	1.013 g/cm³
PSA	38.57000	LogP	0.39450
Solubility	soluble in water	Melting Point	75-77 °C(lit.)
Formula	C₅H₁₂N₂S	Boiling Point	245 °C at 760 mmHg
Molecular Weight	132.23	Flash Point	102 °C
Transport Information	N/A	Appearance	White crystals
Safety	22-24/25-36	Risk Codes	22-20/21/22
Molecular Structure		Hazard Symbols	Xn
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;	Article Data	43

TETRAMETHYLTHIOUREA Chemical Properties

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 Uses

Tetramethylthiourea (2782-91-4) is used in organic synthesis.

TETRAMETHYLTHIOUREA Toxicity Data With Reference

Organism	Test Type	Route	Reported Dose (Normalized Dose)	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.

TETRAMETHYLTHIOUREA Safety Profile

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

TETRAMETHYLTHIOUREA Specification

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.

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