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Molekula

Molekula

Maleic anhydride

CAS 108-31-6 C4H2O3 MW 98.057 In stock
CoA by batch

Overview

A high-purity uncategorised supplied by Molekula across research and bulk scale.

Specifications

Property Value
Appearance White to light yellow crystalline powder
Colour ≤ 25 Hazen
Assay ≥ 99.5%
Iron (Fe) ≤ 5ppm
Solidifying point ≥ 52.5°C
Identification (IR) Conforms to Reference

Storage & handling

Property Value
Storage Temperature Ambient
Flash Point 103 C
Transport Class 8
Packing Group III
Shelf Life 24 months
Acidity Neutral

Identification

Property Value
CAS Number 108-31-6
Molecular Formula C4H2O3
Molecular Weight 98.057
SMILES C1=CC(=O)OC1=O
EC / UN Number 2215
REACH Code Y110
TSCA Listed Yes
HTS Code 29171410
Tariff Code 2917140000

Safety & GHS

Danger
  • GHS pictogram — Corrosive Corrosive GHS05
  • GHS pictogram — Toxic Toxic GHS06
  • GHS pictogram — Serious Health Hazard Serious Health Hazard GHS08

Hazard statements

  • EUH071 Corrosive to the respiratory tract
  • H301 Toxic if swallowed
  • H314 (sub cat. 1B) Causes severe skin burns and eye damage
  • H317 May cause an allergic skin reaction
  • H330 Fatal if inhaled
  • H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled
  • H372 Causes damage to organs through prolonged or repeated exposure

Precautionary statements

  • P260 Do not breathe dust/fume/gas/mist/vapours/spray
  • P280 Wear protective gloves/protective clothing/eye protection/face protection
  • P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
  • P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
  • P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
  • P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
  • P308+313 IF exposed or concerned: Get medical advice/attention

For research and industrial use only

Not for use in food, drugs, household, or in or on humans or animals. Consult the Safety Data Sheet before handling.

Documents

Certificate of Analysis (CoA) by batch

Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.

Pricing & pack sizes

Pack sizes & pricing

  • 1 kg

    £61.00 · per pack

Prices exclude VAT/sales tax and shipping. Bulk and custom pack sizes available on request.

Synonyms

No alternate names recorded for this product.

Frequently asked questions

What is maleic anhydride used for?

Maleic anhydride is primarily used in the production of unsaturated polyester resins, alkyd resins, and copolymers for applications in coatings, adhesives, and plastics.

What is the chemical formula and molecular weight of maleic anhydride?

The chemical formula is C4H2O3, and the molecular weight is 98.057 g/mol.

How should maleic anhydride be stored?

Maleic anhydride should be stored at ambient temperature in a dry, well-ventilated area, away from moisture and incompatible materials.

What grade of maleic anhydride does Molekula supply?

Molekula supplies maleic anhydride in technical grade, suitable for industrial applications.

Can Molekula supply maleic anhydride in bulk?

Yes, Molekula can supply maleic anhydride in bulk quantities; please contact our sales team for pricing and logistics.

What documentation comes with a maleic anhydride order?

Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS), compliant with GHS standards.

Ready to order or need a custom pack?

Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.

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