Sodium benzenesulfonothioate

苯硫代磺酸钠

Also known as: Sodium phenylthiosulfonate, Benzenesulfonothioic acid, sodium salt, Sodium thiobenzosulfonate, Sodium benzene thiosulfonate, Sodium benzenethiosulfonate, Sodium benzenethiosulphonate, sodium,oxido-oxo-phenyl-sulfanylidene-λ6-sulfane, Benzenethionosulfonic acid, sodium salt, EINECS 217-558-8, MFCD00145297

Sodium benzenesulfonothioate (CAS 1887-29-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H5NaO2S2 and a molecular weight of 196.223 g/mol. It is also known as Sodium phenylthiosulfonate, Benzenesulfonothioic acid, sodium salt and Sodium thiobenzosulfonate. Key properties include a melting point of 275ºC (dec.)(lit.), a boiling point of 335.4ºC at 760mmHg and a flash point of 156.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1887-29-2
Jingsj CID
J-49086-7
Molecular Formula
C6H5NaO2S2
Chinese Name
苯硫代磺酸钠
Molecular Weight
196.223 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point275ºC (dec.)(lit.)
Boiling Point335.4ºC at 760mmHg
Flash Point156.7ºC
Exact Mass195.962860
PSA80.60000
LogP2.43850
Vapor Pressure4.72E-05mmHg at 25°C
Refractive Index1.655

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 Sodium benzenesulfonothioate?

The CAS number of Sodium benzenesulfonothioate is 1887-29-2.

What are the molecular formula and molecular weight of Sodium benzenesulfonothioate?

Sodium benzenesulfonothioate has molecular formula C6H5NaO2S2 and molecular weight 196.223 g/mol.

What are the upstream and downstream products of Sodium benzenesulfonothioate?

For Sodium benzenesulfonothioate, Upstream Products: Sodium benzenesulfinate, Sodium benzenesulfonate; Downstream Products: Bis(phenylsulfonyl)sulfide.

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

Last updated:

How to cite: Jingsj. "Sodium benzenesulfonothioate (CAS 1887-29-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-49086-7 (accessed 2026-10-28).

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