Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Tetraethylurea
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Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Tetraethylurea
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Zhongshan Xingrui Chemical Co. , Ltd.
China
Product Name: Tetraethylurea
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Purity: 99.0%
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1187-03-7

1187-03-7 structure

1187-03-7 structure

Name: Tetraethylurea
Chemical Name: 1,1,3,3-Tetraethylurea
CAS Number: 1187-03-7
Molecular Formula: C₉H₂₀N₂O
Molecular Weight: 172.26800
Catalog: Chemical reagent Organic reagent Urea
Create Date: 2018-03-19 08:00:00
Modify Date: 2025-08-21 11:35:11

Name	1,1,3,3-Tetraethylurea
Synonyms	Urea,tetraethyl MFCD00042881 N,N-diethylurea TEU N,N,N',N'-tetraethyl urea EINECS 214-696-0 1,1,3,3-tetraethyl urea UREA,1,1,3,3-TETRAETHYL tetraethylurea

Density	0.907 g/mL at 20 °C(lit.)
Boiling Point	211-213 °C(lit.)
Molecular Formula	C₉H₂₀N₂O
Molecular Weight	172.26800
Flash Point	81°C
Exact Mass	172.15800
PSA	23.55000
LogP	1.79000
Vapour Pressure	0.208mmHg at 25°C
Index of Refraction	n20/D 1.447

CHEMICAL IDENTIFICATION

RTECS NUMBER :: YU2100000

CHEMICAL NAME :: Urea, 1,1,3,3-tetraethyl-

CAS REGISTRY NUMBER :: 1187-03-7

BEILSTEIN REFERENCE NO. :: 1763126

LAST UPDATED :: 199612

DATA ITEMS CITED :: 3

MOLECULAR FORMULA :: C9-H20-N2-O

MOLECULAR WEIGHT :: 172.31

WISWESSER LINE NOTATION :: 2N2&VN2&2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 93 mg/kg

TOXIC EFFECTS :: Behavioral - convulsions or effect on seizure threshold

REFERENCE :: JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 54,188,1935

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

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 56 mg/kg

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

REFERENCE :: CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) Volume(issue)/page/year: NX#02977

Risk Phrases	R36/37/38
Safety Phrases	S23-S24/25
WGK Germany	3
RTECS	YU2100000
HS Code	2924199090

Precursor 10
650-51-1 109-89-7 74886-49-0 124-38-9
201230-82-2 88-10-8 591-51-5 109-72-8
594-19-4 13439-87-7
DownStream 2
59-26-7 69082-76-4

HS Code	2924199090
Summary	2924199090. other acyclic amides (including acyclic carbamates) and their derivatives; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

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