Molekula
Citraconic anhydride
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Citraconic anhydride is a reactive organic compound used primarily as a monomer in polymer synthesis and as a crosslinking agent in coatings and adhesives. It serves as a monomer for specialty unsaturated polyester resins and as an analytical reagent for alkalies, alcohols and amines. It is a colorless to pale yellow liquid at room temperature with a pungent odor. CAS: 616-02-4, Molecular Formula: C5H4O3, Molecular Weight: 112.08 g/mol. Store at ambient temperature. Handle with care due to its hazardous nature.
Molekula supplies Citraconic anhydride at ≥98% purity in 100 g packs, from £53.64 inc. VAT. It is in stock for same-day dispatch. Every batch ships with a certificate of analysis, and safety data sheets are available in 6 languages. Larger quantities, up to multi-tonne, are quoted on request.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
In stock — same-day dispatch
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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100 g — £44.70 per pack ex VAT · £53.64 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Colourless to light yellow transparent liquid |
| Identification | Conforms to reference |
| Assay | ≥98% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 101 °C |
| Transport Class | 8 (6.1) |
| Packing Group | II |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Colorless liquid |
| Melting Point | 7-8 °C |
| Boiling Point | 213-214 °C at 760 mmHg |
| Vapour Pressure | 1 mmHg at 47.1 °C |
| Refractive Index | 1.4716 |
Source: PubChem CID 12012 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 13531858 |
| CAS Number | 616-02-4 |
| IUPAC Name | 3-methylfuran-2,5-dione |
| EC Number | 210-459-0 |
| Molecular Formula | C5H4O3 |
| Molecular Weight | 112.08 |
| Exact Mass | 112.016 |
| SMILES | CC1=CC(=O)OC1=O |
| InChIKey | AYKYXWQEBUNJCN-UHFFFAOYSA-N |
| InChI | InChI=1S/C5H4O3/c1-3-2-4(6)8-5(3)7/h2H,1H3 |
| PubChem CID | 12012 |
| UN Number | UN2922 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29171980 |
| Tariff Code | 2917198090 |
Safety & GHS
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Corrosive
GHS05
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Toxic
GHS06
-
Serious Health Hazard
GHS08
Hazard statements
- H311 Toxic in contact with skin
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
- H317 May cause an allergic skin reaction
- H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled
- H335 May cause respiratory irritation
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+330 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P312 Call a POISON CENTER or doctor/physician if you feel unwell
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
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.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- 2 Methylmaleic Anhydride
- 2,5-Furandione, 3-methyl-
- 3-methylfuran-2,5-dione
- Anhydride, 2-Methylmaleic
- Anhydride, Citraconic
- Anhydrides, Citraconic
- Anhydrides, Methylmaleic
- Citraconic Anhydrides
- METHYLMALEIC ANHYDRIDE
- Methylmaleic Anhydrides
Frequently asked questions
What is citraconic anhydride commonly used for?
Citraconic anhydride is primarily used as a chemical intermediate in the synthesis of pharmaceuticals, agrochemicals, and specialty polymers, including resins and coatings.
What is the chemical formula and molecular weight of citraconic anhydride?
The chemical formula is C₅H₄O₃, and the molecular weight is 112.08 g/mol.
How should citraconic anhydride be stored?
Store in a tightly sealed container at ambient temperature, away from moisture, oxidizing agents, and incompatible materials.
What purity grades of citraconic anhydride does Molekula supply?
Molekula supplies citraconic anhydride with an assay of ≥98%.
Can Molekula supply citraconic anhydride in bulk quantities?
Yes, Molekula can supply citraconic anhydride in bulk quantities, with packaging options tailored to customer needs (e.g., drums, IBCs).
What documentation is provided with a citraconic anhydride order?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability.
Where can I buy Citraconic anhydride?
Directly from Molekula, which lists Citraconic anhydride in 100 g packs from £53.64 inc. VAT, with a certificate of analysis for every batch. Larger quantities are quoted on request. Molekula's offices: United Kingdom, France, Spain, Germany, Italy, United States and China.
Is Citraconic anhydride dangerous goods for shipping?
Yes. Citraconic anhydride ships as dangerous goods: UN2922, class 8 (6.1), packing group II.
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.