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Malathion dicarboxylic acid

Also known as: Malathion diacid, MALATHIONDICARBOXYLICACID, Maldison dicarboxylic acid, 2-[(Dimethoxyphosphinothioyl)thio]butanedioic Acid, 2-[(Dimethoxyphosphorothioyl)sulfanyl]succinic Acid, O,O-Dimethyl S-(1,2-dicarboxyethyl) phosphorodithioate, Mercapto-O,O-dimethyl phosphorodithioate succinic acid, 2-dimethoxyphosphinothioylsulfanylbutanedioic acid, dimethoxythiophosphorylsulfanyl-succinic acid

Malathion dicarboxylic acid (CAS 1190-28-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H11O6PS2 and a molecular weight of 274.25200 g/mol. Key properties include a boiling point of 358.7ºC at 760mmHg, a density of 1.559g/cm3 and a flash point of 170.8ºC. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H317 — May cause an allergic skin reaction and H410 — Very toxic to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1190-28-9
Jingsj CID
J-18082-5
Molecular Formula
C6H11O6PS2
Molecular Weight
274.25200 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point358.7ºC at 760mmHg
Density1.559g/cm3
Flash Point170.8ºC
Exact Mass273.97300
PSA160.26000
LogP1.81540
Vapor Pressure4.06E-06mmHg at 25°C
Refractive Index1.58

GHS Safety & Compliance

Irritant / Environmental HazardSignal word: Warning
  • H302 — Harmful if swallowed
  • H317 — May cause an allergic skin reaction
  • H410 — Very toxic to aquatic life with long lasting effects

Customs & Trade Information

HS Code2931900090
Summary2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Malathion dicarboxylic acid?

The CAS number of Malathion dicarboxylic acid is 1190-28-9.

What are the molecular formula and molecular weight of Malathion dicarboxylic acid?

Malathion dicarboxylic acid has molecular formula C6H11O6PS2 and molecular weight 274.25200 g/mol.

Is Malathion dicarboxylic acid hazardous?

Malathion dicarboxylic acid has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H317 — May cause an allergic skin reaction; H410 — Very toxic to aquatic life with long lasting effects.

What are the upstream and downstream products of Malathion dicarboxylic acid?

For Malathion dicarboxylic acid, Upstream Products: Malathion, Maleic anhydride, Dimethylphosphorodithioate.

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

Last updated:

How to cite: Jingsj. "Malathion dicarboxylic acid (CAS 1190-28-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-18082-5 (accessed 2026-11-09).

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