| Identification | |
| Name: | Dehydroacetic acid |
| Synonyms: | 2-Acetyl-5-hydroxy-3-oxo-4-hexenoic acid, delta-lactone; 3-Acetyl-4-hydroxy-6-methyl-2H-pyran-2-one; 3-Acetyl-6-methyl-2,4-pyrandione; 3-acetyl-6-methyl-2H-Pyran-2,4(3H)-dione; 3-Acetyl-6-methyl-2-pyranone; DHA; DHAA; Pyran-2,4(3H)-dione, 3-acetyl-6-methyl-; |
| CAS: | 520-45-6 |
| EINECS: | 208-293-9 |
| Molecular Formula: | C8H8O4 |
| Molecular Weight: | 168.15 |
| InChI: | InChI=1/C8H8O4/c1-4-3-6(10)7(5(2)9)8(11)12-4/h3,10H,1-2H3 |
| Molecular Structure: |  |
| Properties | |
| Flash Point: | 150.6 ºC |
| Density: | 269 |
| Stability: | Stable. Incompatible with oxidizing agents, bases, reducing agents. |
| Refractive index: | 1.4379 (20 C) |
| Solubility: | insoluble
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| Appearance: | white powder |
| Specification: |
Methylacetopyronone (CAS NO.520-45-6), its Synonyms are 2H-Pyran-2,4(3H)-dione, 3-acetyl-6-methyl- ; 3-Acetyl-6-methyl-2H-pyran-2,4(3H)-dione, ion(1-), ; Dehydroacetic Acid ; 3-Acety;-6-methylpyran-2,4(3H)-dione ; 3-Acetyl-4-hydroxy-6-methyl-2H-pyran-2-one ; 3-Acetyl-6-methyl-2,4-pyrandione ; 3-Acetyl-6-methyl-2H-pyran-2,4(3H)-dione ; 3-Acetyl-6-methyl-2H-pyran-2,4(3H)-dione. enol form ; 3-Acetyl-6-methyldihydropyrandione-2,4 ; 2-Acetyl-5-hydroxy-3-oxo-4-hexenoic acid, delta-lactone . |
| Report: |
Reported in EPA TSCA Inventory. |
| Packinggroup: | II; III |
| HS Code: | 29322980 |
| Flash Point: | 150.6 ºC |
| Storage Temperature: | 0-6°C |
| Color: | NEEDLES FROM WATER, RHOMBIC NEEDLES OR PRISMS FROM ALCOHOL WHITE TO CREAM CRYSTALLINE POWDER COLORLESS POWDER Colorless crystals |
| Usage: | Dehydroacetic acid (DHS) is used as stabilizer for cosmetic and pharmaceutical products due to its fungicide and bactericide activity, as additive for PVC-stabilizers and for the syntheses of veterinary medicines. Product Data Sheet |
| Safety Data | |
| Hazard Symbols |
Xn:Harmful
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