Shanghai Nianxing Industrial Co., Ltd
China
Product Name: pth-methionine
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Purity: 98.0%
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Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 5-[2-(methylthio)ethyl]-3-phenyl-2-thioxoimidazolidin-4-one
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Shanghai Amole Biotechnology Co., Ltd.
China
Product Name: pth-methionine
Price: ￥Inquiry/100mg ￥Inquiry/1g ￥Inquiry/250mg
Purity: 97.0%
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Contact: Xiyao Wang
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4370-90-5

4370-90-5 structure

4370-90-5 structure

Name: pth-methionine
Chemical Name: 5-[2-(Methylthio)ethyl]-3-phenyl-2-thiohydantoin
CAS Number: 4370-90-5
Molecular Formula: C₁₂H₁₄N₂OS₂
Molecular Weight: 266.38200
Catalog: Biochemical Amino acids and their derivatives Methionine derivatives
Create Date: 2018-03-28 08:00:00
Modify Date: 2025-09-11 17:16:05

Name	5-[2-(Methylthio)ethyl]-3-phenyl-2-thiohydantoin
Synonyms	EINECS 224-464-0 Phenylthiohydantoin-Methionine MFCD00038433 5-(2-methylsulfanylethyl)-3-phenyl-2-sulfanylideneimidazolidin-4-one PTH-METHIONINE

Density	1.32g/cm3
Boiling Point	384.2ºC at 760mmHg
Melting Point	180ºC
Molecular Formula	C₁₂H₁₄N₂OS₂
Molecular Weight	266.38200
Flash Point	186.2ºC
Exact Mass	266.05500
PSA	89.73000
LogP	2.42320
Index of Refraction	1.671
Storage condition	−20°C

CHEMICAL IDENTIFICATION

RTECS NUMBER :: MU2700000

CHEMICAL NAME :: Hydantoin, 5-(2-methylthioethyl)-3-phenyl-2-thio-

CAS REGISTRY NUMBER :: 4370-90-5

LAST UPDATED :: 199712

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C12-H14-N2-O-S2

MOLECULAR WEIGHT :: 266.40

WISWESSER LINE NOTATION :: T5MYNV EHJ BUS CR& E2S1

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 :: 450 mg/kg

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

REFERENCE :: DPHFAK Dissertationes Pharmaceuticae et Pharmacologicae. (Warsaw, Poland) V.18-24, 1966-72. For publisher information, see PJPPAA. Volume(issue)/page/year: 21,113,1969

Symbol	GHS06
Signal Word	Danger
Hazard Statements	H301
Precautionary Statements	P301 + P310
Hazard Codes	T
Risk Phrases	25
Safety Phrases	45
RIDADR	UN 2811 6.1 / PGIII
WGK Germany	3
RTECS	MU2700000
HS Code	2933990090

103-72-0 structure

103-72-0

59-51-8 structure

59-51-8

~%

4370-90-5 structure

4370-90-5

Literature: Edman Acta Chemica Scandinavica (1947-1973), 1950 , vol. 4, p. 277,281

Precursor 2
103-72-0 59-51-8
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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