4-Hydroxy-4-methyldihydro-2H-pyran-2,6(3H)-dione

Modify Date: 2024-01-04 21:31:11

4-Hydroxy-4-methyldihydro-2H-pyran-2,6(3H)-dione Structure
4-Hydroxy-4-methyldihydro-2H-pyran-2,6(3H)-dione structure
Common Name 4-Hydroxy-4-methyldihydro-2H-pyran-2,6(3H)-dione
CAS Number 34695-32-4 Molecular Weight 144.125
Density 1.4±0.1 g/cm3 Boiling Point 315.2±35.0 °C at 760 mmHg
Molecular Formula C6H8O4 Melting Point 97-99ºC
MSDS N/A Flash Point 138.3±19.4 °C

 Names

Name 3-Hydroxy-3-methylglutaric Anhydride
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.4±0.1 g/cm3
Boiling Point 315.2±35.0 °C at 760 mmHg
Melting Point 97-99ºC
Molecular Formula C6H8O4
Molecular Weight 144.125
Flash Point 138.3±19.4 °C
Exact Mass 144.042252
PSA 63.60000
LogP -1.47
Vapour Pressure 0.0±1.5 mmHg at 25°C
Index of Refraction 1.500

 Safety Information

HS Code 2918199090

 Customs

HS Code 2918199090
Summary 2918199090 other carboxylic acids with alcohol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

 Synonyms

4-hydroxy-4-methyloxane-2,6-dione
2H-Pyran-2,6(3H)-dione, dihydro-4-hydroxy-4-methyl-
4-Hydroxy-4-methyldihydro-2H-pyran-2,6(3H)-dione