2-(2-Cyanoethyl)isothiourea monohydrochloride

2-(2-氰基乙基)异硫脲单盐酸盐

Also known as: 2-cyanoethylthiouronium hydrochloride, S-(2-cyanoethyl)isothiourea hydrochloride, S-(2-cyanoethyl)isothiouronium chloride, 2-cyanoethyl carbamimidothioate hydrochloride, 2-(2-cyanoethyl)isothiourea hydrochloride

2-(2-Cyanoethyl)isothiourea monohydrochloride (CAS 6634-40-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H8ClN3S and a molecular weight of 165.64400 g/mol. It is also known as 2-cyanoethylthiouronium hydrochloride, S-(2-cyanoethyl)isothiourea hydrochloride and S-(2-cyanoethyl)isothiouronium chloride. Key properties include a boiling point of 290ºC at 760 mmHg, a density of 1.27g/cm3 and a flash point of 129.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 6634-40-8
Jingsj CID: J-1459957-0
Molecular Formula: C₄H₈ClN₃S
Chinese Name: 2-(2-氰基乙基)异硫脲单盐酸盐
Molecular Weight: 165.64400 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	290ºC at 760 mmHg
Density	1.27g/cm3
Flash Point	129.2ºC

Frequently Asked Questions

What is the CAS number of 2-(2-Cyanoethyl)isothiourea monohydrochloride?

The CAS number of 2-(2-Cyanoethyl)isothiourea monohydrochloride is 6634-40-8.

What are the molecular formula and molecular weight of 2-(2-Cyanoethyl)isothiourea monohydrochloride?

2-(2-Cyanoethyl)isothiourea monohydrochloride has molecular formula C4H8ClN3S and molecular weight 165.64400 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "2-(2-Cyanoethyl)isothiourea monohydrochloride (CAS 6634-40-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1459957-0 (accessed 2026-10-25).

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