5,6-dihydro-4-hydroxy-6-methyl-2h-pyran-2-one

Names

[ CAS No. ]:
33177-29-6

[ Name ]:
5,6-dihydro-4-hydroxy-6-methyl-2h-pyran-2-one

[Synonym ]:
4-hydroxy-6-methyl-5,6-dihydro-2H-pyran-2-one
4-Hydroxy-5,6-dihydro-6-methyl-2H-pyran-2-one
4-Hydroxy-6-methyl-5,6-dihydro-2-pyranone
5,6-Dihydro-4-hydroxy-6-methyl-2-pyrone
MFCD00012356
4-hydroxy-5,6-dihydro-6-methyl-2-pyrone

Chemical & Physical Properties

[ Density]:
1.252g/cm3

[ Boiling Point ]:
201.5ºC at 760mmHg

[ Melting Point ]:
126-128ºC(lit.)

[ Molecular Formula ]:
C6H8O3

[ Molecular Weight ]:
128.12600

[ Flash Point ]:
83.1ºC

[ Exact Mass ]:
128.04700

[ PSA ]:
46.53000

[ LogP ]:
0.76370

[ Index of Refraction ]:
1.512

[ Storage condition ]:
2-8°C

Safety Information

[ WGK Germany ]:
3

[ HS Code ]:
2932999099

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • triacetate lactone
  • 5-(1,3-dihydroxybutylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione
  • 5-(1-hydroxy-3-oxobutylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione
  • 6-Methyldihydro-2H-pyran-2,4(3H)-dione
  • 4-anilino-2-methyl-2,3-dihydropyran-6-one

DownStream

  • d-Hexanolactone
  • 3-Penten-2-one
  • 4-anilino-2-methyl-2,3-dihydropyran-6-one
  • methyl-6 dihydro-5,6 N-paraaminoanilino-4 pyrone-2
  • 6-methyl-4-[[4-[(2-methyl-6-oxo-2,3-dihydropyran-4-yl)amino]phenyl]amino]-5,6-dihydropyran-2-one
  • 4-(2-aminoanilino)-2-methyl-2,3-dihydropyran-6-one
  • 4-methoxy-6-methyl-5,6-dihydropyran-2-one
  • 5,6-dihydro-3,6-dimethyl-4-hydroxy-2H-pyran-2-one
  • 3,3,6-trimethyldihydro-2H-pyran-2,4(3H)-dione

Customs

[ HS Code ]: 2932999099

[ Summary ]:
2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Related Compounds

  • 3-Esanoyl-5,6-dihydro-4-hydroxy-6-methyl-2H-pyran-2-on
  • 2H-Pyran-2-one, 3-acetyl-5,6-dihydro-4-hydroxy-6-methyl-, (R)- (9CI)
  • 2H-Pyran-2-one, 3-acetyl-5,6-dihydro-4-hydroxy-6-methyl-, (S)- (9CI)
  • 3-(1-hydroxybutylidene)-6-methyloxane-2,4-dione
  • 2H-Pyran-2-one,5,6-dihydro-4-hydroxy-6-methyl-6-phenyl-(9CI)
  • 5,6-dihydro-4-hydroxy-6-phenethyl-6-propyl-2H-pyran-2-one