4-Isothiocyanatobenzoic acid

4-羧基苯基异硫氰酸酯

Also known as: 4-Carboxyphenyl isothiocyanate, p-Isothiocyanatobenzoic acid, Benzoic acid, 4-isothiocyanato-, 4-Isothiocyanatobenzoic acid, 98%, 4-ICBA, MFCD00041369, NSC 52064, RARECHEM AL BO 0440

4-Isothiocyanatobenzoic acid (CAS 2131-62-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H5NO2S and a molecular weight of 179.19600 g/mol. It is also known as 4-Carboxyphenyl isothiocyanate, p-Isothiocyanatobenzoic acid and Benzoic acid, 4-isothiocyanato-. Key properties include a melting point of 220 °C, a boiling point of 361.6ºC at 760mmHg, a density of 1.27g/cm3 and a flash point of 172.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2131-62-6
Jingsj CID
J-4891-2
Molecular Formula
C8H5NO2S
Chinese Name
4-羧基苯基异硫氰酸酯
Molecular Weight
179.19600 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point220 °C
Boiling Point361.6ºC at 760mmHg
Density1.27g/cm3
Flash Point172.5ºC

Frequently Asked Questions

What is the CAS number of 4-Isothiocyanatobenzoic acid?

The CAS number of 4-Isothiocyanatobenzoic acid is 2131-62-6.

What are the molecular formula and molecular weight of 4-Isothiocyanatobenzoic acid?

4-Isothiocyanatobenzoic acid has molecular formula C8H5NO2S and molecular weight 179.19600 g/mol.

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

Last updated:

How to cite: Jingsj. "4-Isothiocyanatobenzoic acid (CAS 2131-62-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-4891-2 (accessed 2026-10-22).

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