acetic anhydride
acetyl oxide
Identification
| Name | acetic anhydride |
| IUPAC | acetyl acetate |
| CAS Number | 108-24-7 |
| EINECS | 203-564-8 |
| FDA UNII | 2E48G1QI9Q |
| Molecular Formula | C4 H6 O3 |
| Molecular Weight | 102.08942000 |
| MDL Number | MFCD00008705 |
| Nikkaji Number | J2.417A |
| Beilstein | 0385737 |
Regulatory
| DG SANTE Food Contact Materials | acetic anhydride |
| FDA Mainterm (SATF) | 108-24-7 ; ACETIC ANHYDRIDE |
| FDA Regulation | FDA PART 172 -- FOOD ADDITIVES PERMITTED FOR DIRECT ADDITION TO FOOD FOR HUMAN CONSUMPTION |
Physical Properties
| Appearance | colorless clear liquid (est) |
| Assay | 98.00 to 100.00 |
| Food Chemicals Codex Listed | No |
| Melting Point | -73.00 °C. @ 760.00 mm Hg |
| Boiling Point | 137.00 to 140.00 °C. @ 760.00 mm Hg, 66.00 to 67.00 °C. @ 50.00 mm Hg |
| Vapor Pressure | 5.100000 mmHg @ 25.00 °C. |
| Vapor Density | 3.5 ( Air = 1 ) |
| Flash Point | 120.00 °F. TCC ( 48.89 °C. ) |
| logP (o/w) | -0.480 |
| Shelf Life | 6.00 month(s) or longer if stored properly. |
| Storage | store in cool, dry place in tightly sealed containers, protected from heat and light. |
| Soluble in | water, 120000 mg/L @ 20 °C (exp) |
Organoleptic Properties
| Odor Description | at 1.00 % in dipropylene glycol. |
Safety Information
| Preferred SDS | View |
| European information | Most important hazard(s): |
| Oral/Parenteral Toxicity | oral-rat LD50 1780 mg/kg |
| Dermal Toxicity | skin-rabbit LD50 4.0 ml/kg |
| Inhalation Toxicity | inhalation-rat LC50 1000 ppm/4H |
GHS Classification
['GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)', 'GHS Label elements, including precautionary statements']
Safety in Use
| Category | food starch-modified |
| Recommendation for acetic anhydride usage levels up to | not for fragrance use. |
| Recommendation for acetic anhydride flavor usage levels up to | not for flavor use. |
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Potential Uses
Natural Occurrence
Synonyms
acetanhydride
acetic acid acetyl ester
acetic acid anhydride
acetic acid, anhydride
acetic anhydride (ca. 1mol/l in dichloromethane)
acetic anhydride natural
acetic oxide
aceticanhydride
acetyl acetate
acetyl anhydride
acetyl oxide
anhydride acetique
ethanoic anhydride
ethanoyl ethanoate
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