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Diphenylphosphinodithioic acid

Also known as: Diphenyldithiophosphonic acid, Diphenyldithiophosphinic acid, Dithiodiphenylphosphinic acid, Phosphinodithioic acid, P,P-diphenyl-, Mercaptodiphenylphosphine sulfide, Diphenylphosphinodithioic acid (>90%), DIPHENYLDITHIOPHOSPHONIC ACID

Diphenylphosphinodithioic acid (CAS 1015-38-9) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H11PS2 and a molecular weight of 250.32000 g/mol. Key properties include a melting point of 55-56ºC, a boiling point of 360.8ºC at 760mmHg, a density of 1.25g/cm3 and a flash point of 172ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1015-38-9
Jingsj CID
J-31236-7
Molecular Formula
C12H11PS2
Molecular Weight
250.32000 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point55-56ºC
Boiling Point360.8ºC at 760mmHg
Density1.25g/cm3
Flash Point172ºC
Exact Mass250.00400
PSA80.70000
LogP3.61230
Vapor Pressure4.5E-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 Diphenylphosphinodithioic acid?

The CAS number of Diphenylphosphinodithioic acid is 1015-38-9.

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

Diphenylphosphinodithioic acid has molecular formula C12H11PS2 and molecular weight 250.32000 g/mol.

What are the upstream and downstream products of Diphenylphosphinodithioic acid?

For Diphenylphosphinodithioic acid, Upstream Products: Diphenylphosphinothioyl chloride, benzene, Diphenylphosphine; Downstream Products: Diphenylphosphinic acid, Chlorodiphenylphosphine.

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

Last updated:

How to cite: Jingsj. "Diphenylphosphinodithioic acid (CAS 1015-38-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-31236-7 (accessed 2026-11-09).

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