Shanghai Nianxing Industrial Co., Ltd
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Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: MTH-DL-LEUCINE
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1076-72-8

1076-72-8 structure

1076-72-8 structure

Name: mth-dl-leucine
Chemical Name: mth-dl-leucine
CAS Number: 1076-72-8
Molecular Formula: C₈H₁₄N₂OS
Molecular Weight: 186.27500
Create Date: 2018-07-08 12:47:35
Modify Date: 2025-09-12 18:08:45

Name	mth-dl-leucine
Synonyms	5-isobutyl-3-methyl-2-thioxo-imidazolidin-4-one 5-Isobutyl-3-methyl-2-thioxo-4-imidazolidinone 4-Imidazolidinone,3-methyl-5-(2-methylpropyl)-2-thioxo MTH-DL-Leucine Methylthiohydantoin-DL-leucine 3-methyl-5-(2-methylpropyl)-2-thioxo-4-imidazolidinone 5-Isobutyl-3-methyl-2-thio-hydantoin 3-methyl-5-(2-methylpropyl)-2-thioxo-4-imidazolidinon

Density	1.16g/cm3
Boiling Point	239ºC at 760 mmHg
Molecular Formula	C₈H₁₄N₂OS
Molecular Weight	186.27500
Flash Point	98.3ºC
Exact Mass	186.08300
PSA	64.43000
LogP	1.01430
Vapour Pressure	0.0412mmHg at 25°C
Index of Refraction	1.558

CHEMICAL IDENTIFICATION

RTECS NUMBER :: NJ0749000

CHEMICAL NAME :: 4-Imidazolidinone, 3-methyl-5-(2-methylpropyl)-2-thioxo-

CAS REGISTRY NUMBER :: 1076-72-8

BEILSTEIN REFERENCE NO. :: 0130884

LAST UPDATED :: 199612

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C8-H14-N2-O-S

MOLECULAR WEIGHT :: 186.30

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 250 mg/kg

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

REFERENCE :: TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 3,107,1961

HS Code	2933990090

556-61-6 structure

556-61-6

~%

1076-72-8 structure

1076-72-8

Literature: Horner et al. Arzneimittel Forschung, 1952 , vol. 2, p. 524,528

Precursor 1
556-61-6
DownStream 0

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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