Formula: | C₄H₄O₄ |
CAS Number: | 110-17-8 |
EC Number (EINECS): | 201-404-4 |
HS Code: | 29171990 |
UN Number: | Not classified as hazardous |
IUPAC Name: | (E)-But-2-enedioic Acid |
Also Known As: | Trans-Butenedioic Acid |
Molecular Weight, g/mol: | 116.07 |
Appearance: | White crystalline powder |
Odor: | Odorless |
Melting Point, °C: | 287–290 |
Boiling Point, °C: | Decomposes |
Density, g/cm³ (at 20°C): | 1.64 |
Flash Point, °C: | Not applicable |
pH (1% solution): | 2.0–3.0 |
Purity, %: | ≥99.0 |
Grades Available: | Industrial, Food Grade (FCC) |
Packaging: | 25kg bags, 500kg/1000kg jumbo bags, bulk |
Primary Applications
Used as an acidulant in food and beverages (E297)
Raw material for polyester resins and coatings
Intermediate in the production of fumarate salts
Secondary Applications
Ingredient in pharmaceuticals and dietary supplements
Used in cosmetics and personal care formulations
Acidifying agent in water treatment chemicals
End Industries Served: Food & Beverage, Pharmaceuticals, Polymers, Coatings, Cosmetics, Water Treatment
Hazard Class (GHS): Not classified as hazardous; may cause mild irritation
Hazard Statements (H-Codes):
H319: Causes serious eye irritation (dust)
Precautionary Statements (P-Codes):
P280: Wear protective gloves/eye protection
P261: Avoid breathing dust
P305 + P351 + P338: IF IN EYES – rinse cautiously with water, remove contact lenses if present
Storage Conditions
Store in cool, dry, well-ventilated place
Keep container tightly closed
Protect from moisture
Transport Information
ADR/RID: Not classified as dangerous goods
IMDG: Not classified as dangerous goods
IATA: Not classified as dangerous goods