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CAS NO.520-45-6
| Dehydroacetic Acid |
| Product name: | Dehydroacetic Acid |
| CAS No.: | 520-45-6 |
| EINECS NO: | 208-293-9 |
| Formula: | C8H8O4 |
| Structure Formula: |
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| M.W.： | 168.15 |
| Characters: |
Beige to light-yellow crystalline powder. Odorless, slight sourness. Melting point: 109℃～112℃. Solubility(25℃,g/100g): ethanol 3; glycol 1.7; olive oil＜1.6; glycerin＜0.1; water＜0.1. Hardly soluble in water. pH value of saturated aqueous solution is 4. thermostable and no moisture absorption. It can be volatilized when heat by water. |
| Main Uses: |
It is a broad spectrum preservative, especially for mold and yeast. The concentration of effective working is low and it is thermostable. |
| Dehydroacetic acid Basic information |
| Product Name: | Dehydroacetic acid |
| Synonyms: | DEHYDRACETIC ACID;DEHYDRANONE;DEHYDROACETIC ACID;LABOTEST-BB LT00053173;3-ACETYL-3,4-DIHYDRO-6-METHYL-2H-PYRAN-2,4-DIONE;3-ACETYL-4-HYDROXY-6-METHYL-2H-PYRAN-2-ONE;3-ACETYL-4-HYDROXY-6-METHYL-2-PYRONE;3-ACETYL-6-METHYL-2H-PYRAN-2,4(3H)-DIONE |
| CAS: | 520-45-6 |
| MF: | C8H8O4 |
| MW: | 168.15 |
| EINECS: | 212-227-4 |
| Product Categories: | Dehydroacetic acid and derivatives;Diketene Derivatives;Miscellaneous Specialties;DHA |
| Mol File: | 520-45-6.mol |
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| Dehydroacetic acid Chemical Properties |
| mp | 111-113 °C(lit.) |
| bp | 270 °C(lit.) |
| Fp | 157°C |
| storage temp. | 0-6°C |
| Merck | 14,2865 |
| BRN | 6129 |
| Stability: | Stable. Incompatible with oxidizing agents, bases, reducing agents. |
| CAS DataBase Reference | 520-45-6(CAS DataBase Reference) |
| NIST Chemistry Reference | Dehydroacetic Acid(520-45-6) |
| EPA Substance Registry System | 2H-Pyran-2,4(3H)- dione, 3-acetyl-6-methyl-(520-45-6) |
| Safety Information |
| Hazard Codes | Xn |
| Risk Statements | 22 |
| Safety Statements | 22 |
| WGK Germany | 1 |
| RTECS | UP8050000 |
| HS Code | 29322980 |
| Hazardous Substances Data | 520-45-6(Hazardous Substances Data) |
| Dehydroacetic acid Usage And Synthesis |
| Chemical Properties | white to light yellow crystal powder |
| 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 |
| Usage | Geogard(R) 111a preservative is based on dehydroacetic acid (DHA) and therefore are recognized by major cosmetic, toiletry and fragrance regulatory authorities worldwide for use in cosmetic and personal care products. |
| Usage | Geogard(R) 221 preservative is based on dehydroacetic acid (DHA) and benzyl alcohol, and therefore is recognized by major cosmetic, toiletry and fragrance regulatory authorities worldwide for use in cosmetic and personal care products. |
| Usage | Geogard(R) 361 preservative is based on six synergistic components, all with wide global regulatory acceptance: dehydroacetic acid (DHA); salicylic acid; benzoic acid; phenoxyethanol; benzyl alcohol; and benzethonium chloride. |
| Usage | antifungal, antibacterial |
| Dehydroacetic acid Preparation Products And Raw materials |
| Raw materials | Sodium hydroxide-->Hydrochloric acid-->Toluene-->Triethylamine-->Benzene-->Ethyl acetoacetate-->Sodium ethoxide-->Acetyl ketene-->Triethylenediamine-->Polymerization inhibitor-->FISH OIL |
| Preparation Products | Sodium dehydroacetate -->Clopidol |
