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dimethyl maleate

Also known as: DMM, Methyl maleate, Maleic acid dimethyl ester, Sipomer DMM, Sipomer DMM 6, EINECS 210-848-5, MFCD00008459, 2-Butenedioic acid(2Z)-, 1,4-dimethyl ester

dimethyl maleate (CAS 624-48-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H8O4 and a molecular weight of 144.125 g/mol. Key properties include a melting point of -17ºC, a boiling point of 193.0±0.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 91.1±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H317 — May cause an allergic skin reaction and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
624-48-6
Jingsj CID
J-1967751-1
Molecular Formula
C6H8O4
Molecular Weight
144.125 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point-17ºC
Boiling Point193.0±0.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point91.1±0.0 °C
Exact Mass144.042252
PSA52.60000
LogP0.62
Vapor Pressure0.5±0.3 mmHg at 25°C
Refractive Index1.435

GHS Safety & Compliance

Irritant / Health HazardSignal word: Warning
  • H302 — Harmful if swallowed
  • H317 — May cause an allergic skin reaction
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation
  • H373 — May cause damage to organs through prolonged exposure

Customs & Trade Information

HS Code2917190090
Summary2917190090 acyclic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of dimethyl maleate?

The CAS number of dimethyl maleate is 624-48-6.

What are the molecular formula and molecular weight of dimethyl maleate?

dimethyl maleate has molecular formula C6H8O4 and molecular weight 144.125 g/mol.

Is dimethyl maleate hazardous?

dimethyl maleate has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H317 — May cause an allergic skin reaction; H319 — Causes serious eye irritation.

What are the upstream and downstream products of dimethyl maleate?

For dimethyl maleate, Upstream Products: Dimethyl acetylenedicarboxylate, Maleic anhydride, tert-Butyl methyl ether; Downstream Products: Methyl 1-benzyl-5-oxo-3-pyrrolidinecarboxylate, Dimethyl trans-1,2-cyclohexanedicarboxylate, Trimethyl 1,1,2-ethanetricarboxylate.

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

Last updated:

How to cite: Jingsj. "dimethyl maleate (CAS 624-48-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1967751-1 (accessed 2026-11-09).

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