2,4 Pentanedione (Acetyl Acetone)
| Formula: | C₅H₈O₂ |
| CAS Number: | 123-54-6 |
| EC Number (EINECS): | 204-634-0 |
| HS Code: | 29141990 |
| UN Number: | 2310 |
| IUPAC Name: | Pentane-2,4-dione |
| Also Known As: | Acetyl Acetone; 2,4-Diketopentane; Diacetylmethane |
| Molecular Weight, g/mol: | 100.12 |
Typical Specifications
| Appearance: | Colorless to slightly yellow liquid |
| Odor: | Characteristic, sweet, pungent |
| Melting Point, °C: | -23 |
| Boiling Point, °C: | 139–140 |
| Density, g/cm³ (at 20°C): | 0.973 |
| Flash Point, °C: | 36 (closed cup) |
| Refractive Index (20°C): | 1.45–1.46 |
| Solubility: | Miscible with alcohol, ether, chloroform; slightly soluble in water |
| Vapor Pressure (at 20°C): | ~3.5 mmHg |
| Purity, %: | ≥99.0 |
| Grades Available: | Technical, Industrial, High-Purity |
| Packaging: | 200kg steel drums, 1000kg IBCs, bulk ISO tanks |
Applications / Uses
Primary Applications
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Intermediate in pharmaceuticals and agrochemicals
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Used as a chelating agent for metal ions (e.g., aluminum, chromium, titanium)
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Raw material in paints, coatings, and inks
Secondary Applications
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Solvent for organic and inorganic compounds
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Stabilizer in gasoline and jet fuel additives
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Used in polymerization catalysts and resin formulations
End Industries Served: Pharmaceuticals, Agrochemicals, Paints & Coatings, Inks, Fuel Additives, Polymers, Chemical Intermediates
Safety & Handling Information
Hazard Class (GHS): Flammable liquid (Category 3), Acute Toxicity (Category 4), Eye Irritant (Category 2A)
Hazard Statements (H-Codes):
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H226: Flammable liquid and vapor
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H302: Harmful if swallowed
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H315: Causes skin irritation
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H319: Causes serious eye irritation
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H332: Harmful if inhaled
Precautionary Statements (P-Codes):
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P210: Keep away from heat, sparks, open flames
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P280: Wear protective gloves/eye protection
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P301 + P312: IF SWALLOWED – call a POISON CENTER/doctor if you feel unwell
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P305 + P351 + P338: IF IN EYES – rinse cautiously with water, remove contact lenses if present
Storage Conditions
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Store in a cool, dry, well-ventilated area
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Keep container tightly closed and away from ignition sources
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Store under nitrogen blanket for long-term stability
Transport Information
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ADR/RID: Class 3, UN2310, PG III
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IMDG: Class 3, UN2310, PG III
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IATA: Class 3, UN2310, PG III