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Phenylarsonic acid

Also known as: Arsonic acid, As-phenyl-, Benzenearsonic acid, Phenylarsonic acid, Phenyldihydroxyarsine oxide, NSC 15566, AI3-16050, Phenylarsonsure, Kyselina benzenarsonova, Monophenylarsonic acid, Phenylarsonicacid,98%

Phenylarsonic acid (CAS 98-05-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H7AsO3 and a molecular weight of 202.04000 g/mol. Key properties include a melting point of 160 °C, a boiling point of 438.2ºC at 760mmHg, a density of 1,76 g/cm3 and a flash point of 232.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
98-05-5
Jingsj CID
J-47878-4
Molecular Formula
C6H7AsO3
Molecular Weight
202.04000 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point160 °C
Boiling Point438.2ºC at 760mmHg
Density1,76 g/cm3
Flash Point232.9ºC
Exact Mass201.96100
PSA57.53000

Frequently Asked Questions

What is the CAS number of Phenylarsonic acid?

The CAS number of Phenylarsonic acid is 98-05-5.

What are the molecular formula and molecular weight of Phenylarsonic acid?

Phenylarsonic acid has molecular formula C6H7AsO3 and molecular weight 202.04000 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. "Phenylarsonic acid (CAS 98-05-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47878-4 (accessed 2026-11-09).

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