2,7-Dimethyl-2,3-dihydro-4H,5H-pyrano[4,3-b]pyran-4,5-dione

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Names

[ CAS No. ]:
18735-96-1

[ Name ]:
2,7-Dimethyl-2,3-dihydro-4H,5H-pyrano[4,3-b]pyran-4,5-dione

[Synonym ]:
2,3-Dihydro-2,7-dimethyl-4H,5H-pyrano-<4,3-b>pyran-4,5-dion

Chemical & Physical Properties

[ Density]:
1.29g/cm3

[ Boiling Point ]:
331.2ºC at 760 mmHg

[ Molecular Formula ]:
C10H10O4

[ Molecular Weight ]:
194.18400

[ Flash Point ]:
148.2ºC

[ Exact Mass ]:
194.05800

[ PSA ]:
56.51000

[ LogP ]:
1.30190

[ Vapour Pressure ]:
0.000158mmHg at 25°C

[ Index of Refraction ]:
1.539

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
UQ1356500
CHEMICAL NAME :
4H,5H-Pyrano(4,3-b)pyran-4,5-dione, 2,3-dihydro-2,7-dimethyl-
CAS REGISTRY NUMBER :
18735-96-1
BEILSTEIN REFERENCE NO. :
1311628
LAST UPDATED :
199612
DATA ITEMS CITED :
1
MOLECULAR FORMULA :
C10-H10-O4
MOLECULAR WEIGHT :
194.20

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
1679 mg/kg
TOXIC EFFECTS :
Brain and Coverings - recordings from specific areas of CNS Behavioral - convulsions or effect on seizure threshold Behavioral - tetany
REFERENCE :
FRPSAX Farmaco, Edizione Scientifica. (Casella Postale 227, 27100 Pavia, Italy) V.8-43 1953-88 For publisher information, see FRMCE8 Volume(issue)/page/year: 29,861,1974

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • triacetate lactone
  • Crotonic acid

DownStream

  • 2,7-dimethylpyrano[3,2-c]pyran-4,5-dione

Related Compounds

  • 1-[2-(4-Fluorophenoxy)ethyl]piperidin-3-amine
  • 4-((Cyclohexylamino)methyl)benzoic acid hydrochloride
  • 1-[(2,4-Dichlorophenyl)methyl]-N-(1,1-dimethylethyl)-2-methyl-1H-indole-3-methanamine
  • 2-Methoxy-6-(pyrazol-1-yl)-benzonitrile
  • 1H-3-Benzazepin-7-ol, 8-chloro-2,3,4,5-tetrahydro-5-(3-iodophenyl)-3-methyl-, (S)-
  • (4-Methyl-tetrahydro-furan-2-yl)-methanol
  • 1-(6-chloropyridazin-3-yl)-N-[2-(1H-indol-3-yl)ethyl]piperidine-3-carboxamide
  • N-(1-cyanocyclopentyl)-2-[4-(4-fluorobenzenesulfonyl)-1,4-diazepan-1-yl]acetamide
  • 4,5,6,7-Tetrahydrobenzo[d]isoxazole-3-carbaldehyde
  • tert-Butyl-DL-alanine