Negletein

Suppliers

Names

[ CAS No. ]:
29550-13-8

[ Name ]:
Negletein

[Synonym ]:
BAICALEIN-7-METHYL ETHER
7-O-Methylbaicalein
5,6-dihydroxy-7-methoxy-2-phenyl-4H-1-benzopyran-4-one
5,6-dihydroxy-7-methoxy-2-phenyl-4H-chromen-4-one
BAICALEIN METHYL ETHER
NEGLETEIN
5,6-dihydroxy-7-methoxy-2-phenyl-chromen-4-one

Chemical & Physical Properties

[ Density]:
1.42g/cm3

[ Boiling Point ]:
541.1ºC at 760mmHg

[ Melting Point ]:
218-220ºC

[ Molecular Formula ]:
C16H12O5

[ Molecular Weight ]:
284.26300

[ Flash Point ]:
207.5ºC

[ Exact Mass ]:
284.06800

[ PSA ]:
79.90000

[ LogP ]:
2.87980

[ Vapour Pressure ]:
2.54E-12mmHg at 25°C

[ Index of Refraction ]:
1.668

[ Storage condition ]:
2-8℃

Safety Information

[ Risk Phrases ]:
R36/37/38

[ Safety Phrases ]:
S26-S36

[ HS Code ]:
2914509090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • Tectochrysin
  • Baicalein-5,6,7-trimethylether
  • Baicalein
  • methyl iodide
  • Mosloflavone
  • 5-Hydroxy-7-acetoxyflavone
  • 4-oxo-2-phenyl-4H-1-benzopyran-5,6,7-triyl triacetate
  • 8-amino-5-hydroxy-7-methoxy-2-phenyl-chromen-4-one
  • 6-hydroxy-5,7-dimethoxy-2-phenylchromen-4-one

DownStream

  • Baicalein

Customs

[ HS Code ]: 2914509090

[ Summary ]:
HS:2914509090 other ketones with other oxygen function VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%