2H-Pyran-2,6(3H)-dione,dihydro-4,4-dimethyl-

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Names

[ CAS No. ]:
4160-82-1

[ Name ]:
2H-Pyran-2,6(3H)-dione,dihydro-4,4-dimethyl-

[Synonym ]:
4,4-dimethyloxane-2,6-dione
MFCD00006684
3,3-Dimethylglutaric Anhydride
EINECS 223-998-1

Chemical & Physical Properties

[ Density]:
1.102g/cm3

[ Boiling Point ]:
181 °C25 mm Hg(lit.)

[ Melting Point ]:
124-126 °C(lit.)

[ Molecular Formula ]:
C7H10O3

[ Molecular Weight ]:
142.15200

[ Flash Point ]:
181°C/25mm

[ Exact Mass ]:
142.06300

[ PSA ]:
43.37000

[ LogP ]:
0.87620

[ Index of Refraction ]:
1.444

MSDS

Click to get detail MSDS

Safety Information

[ Symbol ]:

GHS07

[ Signal Word ]:
Warning

[ Hazard Statements ]:
H315-H319-H335

[ Precautionary Statements ]:
P261-P305 + P351 + P338

[ Personal Protective Equipment ]:
dust mask type N95 (US);Eyeshields;Gloves

[ Hazard Codes ]:
Xi:Irritant;

[ Risk Phrases ]:
R36/37/38

[ Safety Phrases ]:
S26-S37/39

[ RIDADR ]:
NONH for all modes of transport

[ WGK Germany ]:
3

[ HS Code ]:
2917190090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • 3,3-Dimethylglutaric acid
  • 3-(m-benzoyl-phenyl)-propionic acid
  • 4,4-dimethyl-2,6-dioxopiperidine-3,5-dicarbonitrile
  • 1,3-Cyclohexanedione,2,5,5-trimethyl-
  • Acetone
  • benzene

DownStream

  • 4-(4,4-Dimethylpiperidin-1-yl)benzoic acid
  • Ethyl 4-(4,4-dimethyl-1-piperidinyl)benzoate
  • 3,3-Dimethylglutaric acid
  • Pentanoic acid,3,3-dimethyl-5-oxo-5-(2-thiazolylamino)-
  • 4,4-dimethyloxan-2-one
  • 3,3-DIMETHYLGLUTARIMIDE
  • ETHYL4-(4,4-DIMETHYL-2,6-DIOXOPIPERIDIN-1-YL)BENZOATE
  • 2-Acetyl-5,5-dimethyl-1,3-cyclohexanedione
  • 4,4-dimethyl-2,3-dihydropyran
  • 6-ethoxy-4,4-dimethyl-6-oxohexanoate

Customs

[ HS Code ]: 2917190090

[ Summary ]:
2917190090 acyclic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Related Compounds

  • 4,4-bis(4-methoxyphenyl)oxane-2,6-dione
  • 4-methyl-4-pentyloxane-2,6-dione
  • 4-methyl-4-trimethylsilyloxyoxane-2,6-dione
  • 5-(3,4-Dimethoxyphenyl)-1,2-oxazole
  • 4-methyl-4-(4-nitrophenyl)-dihydro-3H-pyran-2,6-dione
  • 4-propan-2-yloxane-2,6-dione
  • 3-[1-(Ethylamino)ethyl]-3-azetidinol
  • 3-(2-Methylphenyl)azetidin-3-ol
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