Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-4-oxo-4H-1-benzopyran-3-yl nicotinate
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang

1556-70-3

1556-70-3 structure

1556-70-3 structure

Name: 2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-4-oxo-4H-1-benzopyran-3-yl nicotinate
Chemical Name: [2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-4-oxochromen-3-yl] pyridine-3-carboxylate
CAS Number: 1556-70-3
Molecular Formula: C₂₁H₁₃NO₈
Molecular Weight: 407.33000
Create Date: 2017-08-11 15:25:01
Modify Date: 2024-01-26 12:08:04

Name	[2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-4-oxochromen-3-yl] pyridine-3-carboxylate
Synonyms	3-Pyridinecarboxylicacid,2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-4-oxo-4H-1-benzopyran-3-yl ester Nicotinicacid,3-ester with 3,3',4',5,7-pentahydroxyflavone (7CI) 2-(3,4-Dihydroxyphenyl)-5,7-dihydroxy-4-oxo-4H-1-benzopyran-3-yl nicotinate Quercetin-nicotinat EINECS 216-312-7

Density	1.72g/cm3
Boiling Point	712.2ºC at 760mmHg
Molecular Formula	C₂₁H₁₃NO₈
Molecular Weight	407.33000
Flash Point	384.5ºC
Exact Mass	407.06400
PSA	150.32000
LogP	2.89660
Vapour Pressure	5.84E-21mmHg at 25°C
Index of Refraction	1.789

HS Code	2934999090

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%