A6945858
Dehydroaceticacid , 10mMinDMSO , 520-45-6
Synonym(s):
2-Acetyl-5-hydroxy-3-oxo-4-hexenoic acid δ-lactone;3-Acetyl-3,4-dihydro-6-methyl-2H-pyran-2,4-dione;Dehydroacetic acid
CAS NO.：520-45-6
Empirical Formula: C8H8O4
Molecular Weight: 168.15
MDL number: MFCD00066709
EINECS: 208-293-9
| Pack Size | Price | Stock | Quantity |
| 1ml | RMB159.20 | In Stock |
|
| others | Enquire |
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 111-113 °C (lit.) |
| Boiling point: | 270 °C (lit.) |
| bulk density | 700kg/m3 |
| Density | 1.1816 (rough estimate) |
| vapor pressure | 0.001 hPa (20 °C) |
| refractive index | 1.4611 (estimate) |
| Flash point: | 157°C |
| storage temp. | Store below +30°C. |
| solubility | 2g/l |
| form | Fine Crystalline Powder |
| pka | 5.53±0.40(Predicted) |
| color | Light yellow or cream |
| PH | 4 (2g/l, H2O, 20℃) |
| Odor | almost odorless. slightly bitter-sweet taste. |
| Water Solubility | 500mg/L at 25℃ |
| Merck | 14,2865 |
| BRN | 6129 |
| Stability: | Stable. Incompatible with oxidizing agents, bases, reducing agents. |
| Cosmetics Ingredients Functions | PRESERVATIVE |
| InChIKey | PGRHXDWITVMQBC-UHFFFAOYSA-N |
| LogP | 0.78 at 20℃ |
| CAS DataBase Reference | 520-45-6(CAS DataBase Reference) |
| NIST Chemistry Reference | Dehydroacetic Acid(520-45-6) |
| EPA Substance Registry System | 3-Acetyl-6-methyl-2H-pyran-2,4(3H)-dione (520-45-6) |
Description and Uses
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
| Symbol(GHS) |  GHS07 |
| Signal word | Warning |
| Hazard statements | H302 |
| Precautionary statements | P264-P270-P301+P312-P501 |
| Hazard Codes | Xn |
| Risk Statements | 22 |
| Safety Statements | 22-26 |
| WGK Germany | 1 |
| RTECS | UP8050000 |
| Autoignition Temperature | 336 °C |
| TSCA | Yes |
| HS Code | 29322980 |
| Hazardous Substances Data | 520-45-6(Hazardous Substances Data) |
| Toxicity | LD50 orally in rats: 1000 mg/kg (Spencer) |
