2H-1-Benzopyran-2-one,3-methyl-

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Names

[ CAS No. ]:
2445-82-1

[ Name ]:
2H-1-Benzopyran-2-one,3-methyl-

[Synonym ]:
3-METHYL-1H-1-BENZOPYRAN-2-ONE
3-Methyl-2-oxochromene
3-methylchromen-2-one
3-methyl-2h-1-benzopyran-2-one
3-methylcoumarine
3-methylcoumarin
3-Methyl-cumarin
3-Methyl-2-oxo-2H-benzopyran
3-methyl-2h-1-benzopyran-2-on
3-methyl-2H-chromen-2-one
3-methyl-coumari

Chemical & Physical Properties

[ Density]:
1.185g/cm3

[ Boiling Point ]:
292.5ºC at 760mmHg

[ Molecular Formula ]:
C10H8O2

[ Molecular Weight ]:
160.16900

[ Flash Point ]:
120.6ºC

[ Exact Mass ]:
160.05200

[ PSA ]:
30.21000

[ LogP ]:
2.10140

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
GN7790900
CHEMICAL NAME :
Coumarin, 3-methyl-
CAS REGISTRY NUMBER :
2445-82-1
BEILSTEIN REFERENCE NO. :
0122776
LAST UPDATED :
199612
DATA ITEMS CITED :
1
MOLECULAR FORMULA :
C10-H8-O2
MOLECULAR WEIGHT :
160.18

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
316 mg/kg
TOXIC EFFECTS :
Behavioral - somnolence (general depressed activity) Behavioral - convulsions or effect on seizure threshold
REFERENCE :
YKKZAJ Yakugaku Zasshi. Journal of Pharmacy. (Nippon Yakugakkai, 2-12-15 Shibuya, Shibuya-ku, Tokyo 150, Japan) No.1- 1881- Volume(issue)/page/year: 76,186,1956

Safety Information

[ HS Code ]:
2932209090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • carbon monoxide
  • Phenol, 2-(1-propynyl)- (9CI)
  • 2H-Chromene-3-carbaldehyde
  • 2-(phenoxymethyl)acrylic acid
  • Salicylaldehyde
  • 2-(triphenyl-phosphanylidene)-propionic acid ethyl ester
  • acrolein
  • Propionic anhydride
  • ethyl 3-(2-hydroxyphenyl)-2-methylacrylate

DownStream

  • Salicylic acid
  • 2,2-diethyl-3-methylchromene
  • Phenol,2,2'-[1,3-propanediylbis[imino(5-methyl-2,4-pyrimidinediyl)]]bis- (9CI)
  • (6E)-6-[5-methyl-2-[4-[[(4E)-5-methyl-4-(6-oxo-1-cyclohexa-2,4-dienylidene)-3H-pyrimidin-2-yl]amino]butylamino]-3H-pyrimidin-4-ylidene]cyclohexa-2,4-dien-1-one
  • Phenol,2,2'-[1,6-hexanediylbis[imino(5-methyl-2,4-pyrimidinediyl)]]bis- (9CI)
  • Phenol,2,2'-[1,8-octanediylbis[imino(5-methyl-2,4-pyrimidinediyl)]]bis- (9CI)
  • 2-oxochromene-3-carbaldehyde
  • 2-(3-hydroxy-2,3-dimethylbut-1-enyl)phenol

Customs

[ HS Code ]: 2932209090

[ Summary ]:
2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Related Compounds

  • 2H-1-Benzopyran-2-one,3-methyl-6-phenyl
  • 6-Allyl-7-hydroxy-8-iodo-3-methyl-2H-1-benzopyran-2-one
  • 2H-1-Benzopyran-2-one,3,4-dihydro-6-methyl-
  • 2H-1-Benzopyran-2-one, 3,4-dihydro-4-methyl-
  • 2H-1-BENZOPYRAN-2-ONE, 3-ETHYL-4-HYDROXY-6-METHYL-
  • 2H-1-Benzopyran-2-one, 3-butyl-7-hydroxy-4-methyl-6-pentyl-
  • 3-Amino-1-(1-propylcyclopropyl)propan-1-ol
  • 1-Bromo-4-ethoxy-2,4-dimethylpentane
  • 1-Bromo-4-ethoxy-2,2,4-trimethylpentane
  • 2-(3-Bromo-2-methylpropyl)-5-chloropyridine
  • 1-(Bromomethyl)-2,2-dimethyl-1-(2,2,2-trifluoroethyl)cyclopropane
  • 1-(Chloromethyl)-2-methyl-1-(3-methylbutyl)cyclopropane
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