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PTH-METHIONINE

苯基硫代乙内酰脲-蛋氨酸

Also known as: PTH-DL-METHIONINE, 5-[2-(METHYLTHIO)ETHYL]-3-PHENYL-2-THIOHYDANTOIN, 5-(2-(METHYLTHIO)ETHYL)-3-PHENYL-2-THIOXO-4-IMIDAZOLIDINONE, 5-(2-METHYLSULFANYLETHYL)-3-PHENYL-2-SULFANYLIDENEIMIDAZOLIDIN-4-ONE, METHIONINE PHENYLTHIOHYDANTOIN, METHIONYL PHENYLTHIOHYDANTOIN

PTH-METHIONINE (CAS 4370-90-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H14N2OS2 and a molecular weight of 266.38200 g/mol. It is also known as PTH-DL-METHIONINE, 5-[2-(METHYLTHIO)ETHYL]-3-PHENYL-2-THIOHYDANTOIN and 5-(2-(METHYLTHIO)ETHYL)-3-PHENYL-2-THIOXO-4-IMIDAZOLIDINONE. Key properties include a melting point of 180ºC, a boiling point of 384.2ºC at 760mmHg, a density of 1.32g/cm3 and a flash point of 186.2ºC. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4370-90-5
Jingsj CID
J-43946-6
Molecular Formula
C12H14N2OS2
Chinese Name
苯基硫代乙内酰脲-蛋氨酸
Molecular Weight
266.38200 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point180ºC
Boiling Point384.2ºC at 760mmHg
Density1.32g/cm3
Flash Point186.2ºC
Exact Mass266.05500
PSA89.73000
LogP2.42320
Refractive Index1.671

GHS Safety & Compliance

Acute ToxicitySignal word: Danger
  • H301 — Toxic if swallowed

Customs & Trade Information

HS Code2933990090
Summary2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of PTH-METHIONINE?

The CAS number of PTH-METHIONINE is 4370-90-5.

What are the molecular formula and molecular weight of PTH-METHIONINE?

PTH-METHIONINE has molecular formula C12H14N2OS2 and molecular weight 266.38200 g/mol.

Is PTH-METHIONINE hazardous?

PTH-METHIONINE has GHS signal word Danger and hazard statements H301 — Toxic if swallowed.

What are the upstream and downstream products of PTH-METHIONINE?

For PTH-METHIONINE, Upstream Products: Phenyl isothiocyanate, DL-Methionine.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "PTH-METHIONINE (CAS 4370-90-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-43946-6 (accessed 2026-10-28).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.