3-Acetyl-6-methyl-1-oxacyclohex-5-ene-2,4-dione 3-Acetyl-6-methyl-2H-pyran-2,4(3H)-dione 3-Acetyl-6-methyldihydropyrandione-2,4
Dehydroacetic acid Chemical Properties |
Melting point | 111-113 °C (lit.) |
Boiling point | 270 °C (lit.) |
density | 1.1816 (rough estimate) |
vapor pressure | 0.001 hPa (20 °C) |
refractive index | 1.4611 (estimate) |
Fp | 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. |
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) |
Safety Information |
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) |
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