Chromone

Names

[ CAS No. ]:
491-38-3

[ Name ]:
Chromone

[Synonym ]:
1-Benzopyran-4-one
2,3-Benzo-4-pyrone
Benzo-γ-pyrone
1,4-benopyrone
4H-Chromen-4-one
T66 BO EVJ
1,4-benzopyrone
4-oxo-4H-1-benzopyran
Benzo-g-pyrone
benzopyran-4-one
EINECS 207-737-9
4H-Benzo(b)pyran-4-one
MFCD00024064
4-Chromone
Chromone
4H-1-Benzopyran-4-one
4H-benzo[b]pyran-4-one
Chromen-4-one

Chemical & Physical Properties

[ Density]:
1.2±0.1 g/cm3

[ Boiling Point ]:
238.5±33.0 °C at 760 mmHg

[ Melting Point ]:
55-60 °C(lit.)

[ Molecular Formula ]:
C₉H₆O₂

[ Molecular Weight ]:
146.143

[ Flash Point ]:
106.5±18.9 °C

[ Exact Mass ]:
146.036774

[ PSA ]:
30.21000

[ LogP ]:
1.38

[ Vapour Pressure ]:
0.0±0.5 mmHg at 25°C

[ Index of Refraction ]:
1.595

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :: GB7887000

CHEMICAL NAME :: Chromone

CAS REGISTRY NUMBER :: 491-38-3

BEILSTEIN REFERENCE NO. :: 0114087

LAST UPDATED :: 199612

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C9-H6-O2

MOLECULAR WEIGHT :: 146.15

WISWESSER LINE NOTATION :: T66 BO EVJ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 91 mg/kg

TOXIC EFFECTS :: Behavioral - anticonvulsant

REFERENCE :: PMDCAY Progress in Medical Chemistry. (Elsevier Science Pub. Co., Inc., 52 Vanderbilt Ave., New York, NY 10017) V.1- 1961- Volume(issue)/page/year: 9,65,1973

Safety Information

[ Hazard Codes ]:
Xn

[ Risk Phrases ]:
22

[ Safety Phrases ]:
S36/37/39-S26

[ WGK Germany ]:
3

[ RTECS ]:
GB7887000

[ HS Code ]:
2932999099

Synthetic Route

Click to get detail synthetic route

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%