Tetramethylthiourea

Modify Date: 2025-08-21 14:28:04

Tetramethylthiourea structure	Common Name	Tetramethylthiourea
	CAS Number	2782-91-4	Molecular Weight	132.227
	Density	1.0±0.1 g/cm3	Boiling Point	245.0±9.0 °C at 760 mmHg
	Molecular Formula	C₅H₁₂N₂S	Melting Point	75-77 °C(lit.)
	MSDS	Chinese USA	Flash Point	102.0±18.7 °C
	Symbol	GHS07	Signal Word	Warning

Name	Tetramethylthiourea
Synonym	More Synonyms

Density	1.0±0.1 g/cm3
Boiling Point	245.0±9.0 °C at 760 mmHg
Melting Point	75-77 °C(lit.)
Molecular Formula	C₅H₁₂N₂S
Molecular Weight	132.227
Flash Point	102.0±18.7 °C
Exact Mass	132.072113
PSA	38.57000
LogP	0.49
Vapour Pressure	0.0±0.5 mmHg at 25°C
Index of Refraction	1.524
Storage condition	2-8°C
Water Solubility	32 g/L (20 ºC)

Tetramethylthiourea MSDS(Chinese)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: YU2750000

CHEMICAL NAME :: Urea, 1,1,3,3-tetramethyl-2-thio-

CAS REGISTRY NUMBER :: 2782-91-4

BEILSTEIN REFERENCE NO. :: 1744916

LAST UPDATED :: 199710

DATA ITEMS CITED :: 14

MOLECULAR FORMULA :: C5-H12-N2-S

MOLECULAR WEIGHT :: 132.25

WISWESSER LINE NOTATION :: 1N1&YUS&N1&1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 920 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 500 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Unreported

SPECIES OBSERVED :: Mammal - species unspecified

DOSE/DURATION :: 400 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 2373 mg/kg/2Y-C

TOXIC EFFECTS :: Tumorigenic - Carcinogenic by RTECS criteria Endocrine - thyroid tumors

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 250 mg/kg

SEX/DURATION :: female 12 day(s) after conception

TOXIC EFFECTS :: Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus)

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Administration onto the skin

DOSE :: 500 mg/kg

SEX/DURATION :: female 11-12 day(s) after conception

TOXIC EFFECTS :: Reproductive - Effects on Embryo or Fetus - fetal death

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 250 mg/kg

SEX/DURATION :: female 10 day(s) after conception

TOXIC EFFECTS :: Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus) Reproductive - Specific Developmental Abnormalities - craniofacial (including nose and tongue) Reproductive - Specific Developmental Abnormalities - musculoskeletal system

MUTATION DATA

TYPE OF TEST :: Cytogenetic analysis

TEST SYSTEM :: Human Lymphocyte

DOSE/DURATION :: 100 ug/L

REFERENCE :: CYGEDX Cytology and Genetics (English Translation). Translation of TGANAK. (Allerton Press Inc., 150 Fifth Ave., New York, NY 10011) V.8- 1974- Volume(issue)/page/year: 20(2),55,1986 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 82211 No. of Facilities: 28 (estimated) No. of Industries: 2 No. of Occupations: 5 No. of Employees: 1954 (estimated)

Symbol	GHS07
Signal Word	Warning
Hazard Statements	H302
Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes	Xn:Harmful;
Risk Phrases	R22
Safety Phrases	S22-S24/25
RIDADR	NONH for all modes of transport
WGK Germany	3
RTECS	YU2750000
HS Code	29309070

Precursor 8
CAS#:75-15-0 Carbon disulphide CAS#:74-88-4 methyl iodide CAS#:632-22-4 Tetramethylurea CAS#:534-13-4 N,N'-Dimethylth...
CAS#:463-71-8 Thiophosgene CAS#:2083-91-2 N-(Trimethylsil... CAS#:128398-55-0 1-dimethylamino... CAS#:124-40-3 Dimethylamine
DownStream 10
CAS#:19348-30-2 N,N,N,N,S-Penta... CAS#:463-58-1 carbonyl sulfide CAS#:124-40-3 Dimethylamine CAS#:632-22-4 Tetramethylurea
CAS#:791-50-4 2,2,4,4-Tetra(t... CAS#:26394-96-7 ethyl 3,3-bis(d... CAS#:97-74-5 Tetramethylthiu... CAS#:50-00-0 Formaldehyde
CAS#:7664-93-9 Sulfuric acid CAS#:64-18-6 Formic Acid

HS Code	2930909090
Summary	2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

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CoBr2-TMTU-zinc catalysed-Pauson-Khand reaction.

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1,1,3,3-Tetramethylthiourea

N,n,n',n'-tetramethylthiourea

1,1,3,3-Tetramethyl-2-thiourea

Tetramethylthiourea

N,N,N',N'-tetramethyl-2-thiourea

Tetramethyl-2-thiourea

Thiourea, N,N,N',N'-tetramethyl-

EINECS 220-488-0

tetramethyl thiourea

Thiourea,tetramethyl

NA-101

Urea,thio-,tetramethyl

Basthioryl

TMTU

tetramethyl-thioure

MFCD00008324

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Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Tetramethylthiourea
Price: Check
Purity: 98.0%
Delivery: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: Tetramethylthiourea
Price: ￥108.0/25g ￥318.0/100g
Purity: 98.0%
Delivery: 3 Day
Contact: Liu jia
Email: 2130147988@qq.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Tetramethylthiourea
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Delivery: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Henan Tianfu Chemical Co., Ltd.
China
Product Name: Tetramethylthiourea
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Delivery: Inquiry
Contact: Anson
Email: info@tianfuchem.com

Zhongshan Xingrui Chemical Co. , Ltd.
China
Product Name: Tetramethylthiourea
Price: ￥Inquiry/25kg
Purity: 99.0%
Delivery: Inquiry
Contact: Wang Jie
Email: 3096638339@qq.com

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Tetramethylthiourea

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Chemical & Physical Properties

MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

MUTATION DATA

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Precursor & DownStream

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