Questin

Suppliers

Names

[ CAS No. ]:
3774-64-9

[ Name ]:
Questin

[Synonym ]:
1,6-dihydroxy-8-methoxy-3-methylanthraquinone
Emodin-8-methyl ether
1-methylemodin
1,6-dihydroxy-8-methoxy-3-methylanthracene-9,10-dione
8-O-methylemodin
1-O-methylemodin
Questin
9,10-Anthracenedione,1,6-dihydroxy-8-methoxy-3-methyl
<U-14C>Questin

Chemical & Physical Properties

[ Density]:
1.448g/cm3

[ Boiling Point ]:
557ºC at 760mmHg

[ Molecular Formula ]:
C16H12O5

[ Molecular Weight ]:
284.26300

[ Flash Point ]:
213.9ºC

[ Exact Mass ]:
284.06800

[ PSA ]:
83.83000

[ LogP ]:
2.19020

[ Index of Refraction ]:
1.677

Safety Information

[ HS Code ]:
2914690090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • 1-chloro-4,7-dihydroxy-5-methoxy-2-methylanthracene-9,10-dione
  • Emodin
  • methyl iodide

DownStream

  • (5-acetyloxy-4-methoxy-7-methyl-9,10-dioxoanthracen-2-yl) acetate
  • 3,8-dihydroxy-1-methoxyanthracene-9,10-dione
  • 1-hydroxy-6,8-dimethoxy-3-methylanthracene-9,10-dione

Customs

[ HS Code ]: 2914690090

[ Summary ]:
2914690090 other quinones。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Related Compounds

  • Diacetylquestin