Maleic anhydride, GR 99%+

Name: Maleic anhydride, GR 99%+
Brand: Vaqora Chemicals
SKU: VQ-009147

About Maleic anhydride, GR 99%+

Maleic anhydride (CAS 108-31-6) is an acylating agent offered by Vaqora Chemicals (AR grade), specified at ≥99% purity. The compound has the formula C4H2O3, corresponding to a molecular weight of 98.06 g/mol. The IUPAC name is furan-2,5-dione. Common synonyms include 2,5-Furandione and Toxilic anhydride.

It is supplied as a white to off-white solid. Store sealed in a dry, well-ventilated location away from incompatible materials. It carries the GHS signal word “Danger” with 6 hazard statements. Review the Safety Data Sheet before use.

Key uses span pharmaceutical synthesis, polymer and resin production, water treatment and agrochemical formulations. Buyers come mainly from pharmaceutical manufacturing, academic and industrial research and agrochemical production.

Standard pack sizes are 100 g, 500 g and 4 x 25 kg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Pharmaceutical synthesis
Polymer & resin production
Water treatment
Agrochemical formulations
Surfactants & detergency

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Maleic anhydride, GR 99%+
Catalogue No.	VQ-009147
CAS Number	108-31-6
IUPAC name	furan-2,5-dione
Molecular formula	C₄H₂O₃
Molecular weight	98.06 g/mol
Exact mass	98.0004
Grade	AR
Purity / assay	≥99%
HSN code	29171990
InChIKey	FPYJFEHAWHCUMM-UHFFFAOYSA-N
SMILES	C1=CC(=O)OC1=O
PubChem CID	7923

Physical properties
Physical form	Solid
Appearance	White to off-white solid
LogP (XLogP3)	-0.1
H-bond donors / acceptors	0 / 3
TPSA	43.4 Å²
UN number	UN 2215
Synonyms	2,5-Furandione, Toxilic anhydride, Maleic acid anhydride, cis-Butenedioic anhydride, Dihydro-2,5-dioxofuran, 2,5-Furanedione, Anhydrid kyseliny maleinove, Anhydride, Maleic, 2,5-dihydrofuran-2,5-dione, C4H2O3, Maleic Anhydrides, fumaric anhydride

Safety & hazard information (GHS)

Corrosive

Harmful / irritant

Health hazard

Signal word: Danger

Hazard statements

H302Harmful if swallowed
H314Causes severe skin burns and eye damage
H317May cause an allergic skin reaction
H318Causes serious eye damage
H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
H372Causes damage to organs through prolonged or repeated exposure

Precautionary statements: P233, P260, P261, P264, P264 + P265, P270, P271, P272, P280, P284, P301 + P317, P301 + P330 + P331, P302 + P352, P302 + P361 + P354, P304 + P340, P305 + P354 + P338, P316, P317, P319, P321, P330, P333 + P317, P342 + P316, P362 + P364

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 108-31-6

Synthesis

Maleic anhydride, 99%

CAS: 108-31-6
Formula: C₄H₂O₃
MW: 98.06 g/mol

VQ-009146

Frequently asked questions

What is the CAS number of Maleic anhydride, GR 99%+?

The CAS Registry Number of Maleic anhydride, GR 99%+ is 108-31-6. It is also known as 2,5-Furandione, Toxilic anhydride, Maleic acid anhydride.

What is the molecular formula and molecular weight of Maleic anhydride, GR 99%+?

Maleic anhydride, GR 99%+ has the molecular formula C4H2O3 and a molecular weight of 98.06 g/mol. Its IUPAC name is furan-2,5-dione.

Which grade and pack sizes of Maleic anhydride, GR 99%+ can I order?

We supply Maleic anhydride, GR 99%+ in AR (≥99%) grade, in 100 g, 500 g, 4 x 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Maleic anhydride, GR 99%+?

Yes. Every lot of Maleic anhydride, GR 99%+ is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Maleic anhydride, GR 99%+ be shipped internationally?

Yes. Maleic anhydride, GR 99%+ is classified as hazardous (UN 2215), so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.