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1-Ethyl-3-phenyl-2-thiourea

Also known as: N-Ethyl-N'-phenylthiourea, Ethylphenylthiourea, Phenylethylthiourea, EPTU, 1-Ethyl-3-phenylthiourea

1-Ethyl-3-phenyl-2-thiourea (CAS 3955-58-6) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H12N2S and a molecular weight of 180.270 g/mol. Key properties include a melting point of 133-137ºC, a boiling point of 264.9±23.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 114.0±22.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3955-58-6
Jingsj CID
J-45871-5
Molecular Formula
C9H12N2S
Molecular Weight
180.270 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point133-137ºC
Boiling Point264.9±23.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point114.0±22.6 °C
Exact Mass180.072113
PSA56.15000
LogP1.42
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.639

Customs & Trade Information

HS Code2930909090
Summary2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 1-Ethyl-3-phenyl-2-thiourea?

The CAS number of 1-Ethyl-3-phenyl-2-thiourea is 3955-58-6.

What are the molecular formula and molecular weight of 1-Ethyl-3-phenyl-2-thiourea?

1-Ethyl-3-phenyl-2-thiourea has molecular formula C9H12N2S and molecular weight 180.270 g/mol.

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

Last updated:

How to cite: Jingsj. "1-Ethyl-3-phenyl-2-thiourea (CAS 3955-58-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45871-5 (accessed 2026-11-07).

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