Visnagin

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Names

[ CAS No. ]:
82-57-5

[ Name ]:
Visnagin

[Synonym ]:
Visnagidin
Visnagin
5-methoxy-2-methylfuranobenzopyran-4-one
EINECS 201-430-3
Visnacorin
Desmethoxykhellin
MFCD00005008
5H-Furo[3,2-g][1]benzopyran-5-one, 4-methoxy-7-methyl-
Visnagine
5-Methoxy-2-methylfuranochromone
4-Methoxy-7-methyl-5H-furo[3,2-g][1]benzopyran-5-one
4-Methoxy-7-methyl-5H-furo[3,2-g]chromen-5-one

Chemical & Physical Properties

[ Density]:
1.3±0.1 g/cm3

[ Boiling Point ]:
378.2±42.0 °C at 760 mmHg

[ Melting Point ]:
139-142 °C

[ Molecular Formula ]:
C₁₃H₁₀O₄

[ Molecular Weight ]:
230.216

[ Flash Point ]:
182.5±27.9 °C

[ Exact Mass ]:
230.057907

[ PSA ]:
52.58000

[ LogP ]:
2.26

[ Vapour Pressure ]:
0.0±0.9 mmHg at 25°C

[ Index of Refraction ]:
1.613

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :: LV1420000

CHEMICAL NAME :: 5H-Furo(3,2-g)(1)benzopyran-5-one, 4-methoxy-7-methyl-

CAS REGISTRY NUMBER :: 82-57-5

BEILSTEIN REFERENCE NO. :: 0234955

LAST UPDATED :: 199612

DATA ITEMS CITED :: 2

MOLECULAR FORMULA :: C13-H10-O4

MOLECULAR WEIGHT :: 230.23

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 832 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: JDGRAX Journal of Drug Research. (National Organization for Drug Research and Control, POB 29, Cairo, Egypt) V.2- 1969- Volume(issue)/page/year: 7(2),1,1975

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intramuscular

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 123 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: JDGRAX Journal of Drug Research. (National Organization for Drug Research and Control, POB 29, Cairo, Egypt) V.2- 1969- Volume(issue)/page/year: 7(2),1,1975

Safety Information

[ Hazard Codes ]:
Xn: Harmful;

[ Risk Phrases ]:
R22

[ Safety Phrases ]:
S3

[ RTECS ]:
LV1420000

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

4-methoxy-7-methyl-9-(methylthio)-5H-furo[3,2-g]chromen-5-one
6-ethoxy-4-methoxy-7-(methylthio)-5-vinylbenzofuran
6-ethoxy-7-(methylthio)-5-vinylbenzofuran-4-yl acetate
7-chloromethyl-4-methoxy-furo[3,2-g]chromen-5-one
7-(Hydroxymethyl)-4-methoxy-5H-furo[3,2-g][1]benzopyran-5-one
4-methoxy-7-(toluene-4-sulfonyloximethyl)-furo[3,2-g]chromen-5-one
1-(6-hydroxy-4-methoxy-7-(methylthio)benzofuran-5-yl)ethanone
1-(6-ethoxy-4-methoxy-7-(methylthio)benzofuran-5-yl)ethanone
4-allyloxy-2-hydroxy-3-iodo-6-methoxyacetophenone

DownStream

Khellin
9-amino-4-hydroxy-7-methylfuro[3,2-g]chromen-5-one
7-Hydroxy-5-methoxy-2-methyl-4-oxo-4H-1-benzopyran-6-carbaldehyde
6-hydroxy-4-methoxy-1-benzofuran-5-carboxylic acid
1-(6-hydroxy-4-methoxy-1-benzofuran-5-yl)ethanone
7-Methyl-4H-furo(3,2-g)chromene-4,5,9-trione
[[(4E)-4-(4-methoxy-6-oxo-benzofuran-5-ylidene)-6-methyl-1H-pyrimidin-2-yl]amino]formonitrile