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PTH-leucine

Also known as: 5-Isobutyl-3-phenyl-2-thioxoimidazolidin-4-one, 5-Isobutyl-3-phenyl-2-thiohydantoin, 3-Phenyl-5-isobutyl-thiohydantoin, 5-(2-Methylpropyl)-3-phenyl-2-thioxoimidazolidin-4-one, 1-Phenyl-2-thioxo-4-isobutylimidazolidine-5-one, 2-Thioxo-3-phenyl-5-isobutylimidazolidine-4-one, Phenylthiohydantoin-leucine, PTH-DL-leucine, PTH-L-leucine, Leucine 3-phenyl-2-thiohydantoin, D,L-Leucine N-phenylthiohydantoin, MFCD00038432, EINECS 224-529-3

PTH-leucine (CAS 4399-40-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C13H16N2OS and a molecular weight of 248.34400 g/mol. Key properties include a melting point of 180 °C, a boiling point of 338.1ºC at 760 mmHg, a density of 1.21g/cm3 and a flash point of 158.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4399-40-0
Jingsj CID
J-1357273-1
Molecular Formula
C13H16N2OS
Molecular Weight
248.34400 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point180 °C
Boiling Point338.1ºC at 760 mmHg
Density1.21g/cm3
Flash Point158.3ºC
Exact Mass248.09800
PSA64.43000
LogP2.71620
Refractive Index1.621

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-leucine?

The CAS number of PTH-leucine is 4399-40-0.

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

PTH-leucine has molecular formula C13H16N2OS and molecular weight 248.34400 g/mol.

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

For PTH-leucine, Upstream Products: DL-Leucine, L-Leucine, Phenyl isothiocyanate.

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

Last updated:

How to cite: Jingsj. "PTH-leucine (CAS 4399-40-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1357273-1 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.