Maleic Acid

Maleic Acid

CAS Number
110-16-7
Molecular Formula
C4H4O4
Purity
Maleic Acid 99% purity
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About Maleic Acid

Maleic acid (CAS 110-16-7) is a cornerstone of the US API intermediates market, where its role in synthesizing multicomponent crystals for blockbuster GABA pharmaceuticals requires a Pharma/API purity 99% to ensure enhanced solubility and bioavailability in line with FDA standards. (Z)-Butenedioic acid serves as a high...

Synonyms

  • hydrogen maleate
  • maleate
  • maleic acid
  • maleic acid, ammonium salt
  • maleic acid, calcium salt

Maleic Acid Specifications

CAS Number
110-16-7
Molecular Formula
C4H4O4
Molecular Weight
116.07 g/mol
IUPAC Name
(Z)-but-2-enedioic acid
Canonical SMILES
O=C(O)C=CC(=O)O
InChI Key
VZCYOOQTPOCHFL-UPHRSURJSA-N
InChI
InChI=1S/C4H4O4/c5-3(6)1-2-4(7)8/h1-2H,(H,5,6)(H,7,8)/b2-1-
EINECS Number
203-742-5
MDL Number
MFCD00063177
HSN No
29171910
Molecular Weight
116.07 g/mol
Purity
Maleic Acid 99% purity
Melting Point
130-139 °C
Boiling Point
355.00 to 356.00 °C @ 760.00 mm Hg (est)
Freezing point
130°C
Flash Point
127 °C
Density
1.59 g/cm3
Precise Quality
110-16-7
PSA
74.6 Ų
logP
-0.48
Average mass
116.07 g/mol
Monoisotopic mass
116.01095860 Da
Molar mass
116.07 g/mol
Vapour pressure
0.0048 Pa at 25 °C
Precautionary Statement Codes
P261, P264+P265, P272, P280, P302+P352, P305+P351+P338, P321, P333+P317, P337+P317, P362+P364, and P501
Hazard Classes and Categories
Skin Sens. 1 (96.4%) Eye Irrit. 2A (100%)

Chemical Intermediate

A primary precursor used in the industrial isomerization to fumaric acid and the production of maleic anhydride, malic acid, and glyoxylic acid

Resin and Polymer Feedstock

A critical building block employed in the synthesis of unsaturated polyester resins, alkyd resins, and artificial resins for fiber-reinforced moldings, paints, and coatings

Adhesion Promoter

A functional additive used to enhance the bonding and dye uptake of naturally occurring fibers and various substrates such as nylon and zinc-coated metals

Industrial Additive

A versatile agent utilized as a corrosion inhibitor and scale inhibitor in water treatment processes and as a pH regulator in the formulation of cosmetics and personal care products

Pharmaceutical Ingredient

An essential component used to form stable acid addition salts with medicinal compounds and as an intermediate in the synthesis of antihistamines.

  1. hydrogen maleate
  2. maleate
  3. maleic acid
  4. maleic acid, ammonium salt
  5. maleic acid, calcium salt

Maleic Acid FAQs

Minimum Order Quantity

25 kg (evaluation) · 1 MT (commercial)

Lead Time

3 – 5 weeks estimated

Delivery Terms

FOB*

Packaging

20 L pails, 200 L HDPE drums, 1000 L IBC

US Availability

US Facility Inventory

Documentation

US SDS · COA · TDS · Specification sheet

US Regulatory & Quality Information

TSCA status*

US SDS / HazCom*

GHS classification*

ISO 9001:2015 site*

DOT shipping classification*

FDA status*

EPA status*

California Prop 65*

Reliable US supply chain

Regulatory compliance

On-time delivery

Technical expert support

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