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afzelin

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Origin: China

Cas No: 482-39-3

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 50 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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Products Specification
Product Description

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CAS No.: 482-39-3 Formula: C21H20O10 Molecular Weight: 432.37800

Description

Afzelin is a flavonol glycoside. It is the rhamnoside of kaempferol. It is found in Nymphaea odorata.

Basic Info

Chemical Name	afzelin
Synonyms	Kaempferol 3-rhamnoside; 5,7-dihydroxy-2-(4-hydroxyphenyl)-3-[(2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxychromen-4-one; Kaempferol 3-O-Alpha-L-Rhamnoside; Afzelin; Trihydroxy-SL0101; Kaempferin;
CAS No.	482-39-3
Molecular Formula	C21H20O10
Molecular Weight	432.37800
PSA	170.05000
LogP	0.78310

Properties

Density	1.7g/cm3
Boiling Point	765.6ºC at 760mmHg
Flash Point	272.3ºC
Refractive Index	1.748
Vapor Pressure	1.19E-24mmHg at 25°C

Synthesis Route

5,7-bis(benzyloxy)-2-(4-(benzyloxy)phenyl)-3-(((2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-4H-chromen-4-one→afzelin
4',5,7-tri-O-benzyl-kaempferol 3-O-(2''-O-benzyl-α-L-rhamnopyranoside)→afzelin
Carbonic acid, (2S,6S)-5,6-dihydro-6-methyl-5-oxo-2H-pyran-2-yl 1,1-dimethylethyl ester→afzelin

Precursor

3-((2S,6S)-5,6-dihydro-6-methyl-5-oxo-2H-pyran-2-yloxy)-5,7-bis(benzyloxy)-2-(4-(benzyloxy)phenyl)-4H-chromen-4-one
Carbonic acid, (2S,6S)-5,6-dihydro-6-methyl-5-oxo-2H-pyran-2-yl 1,1-dimethylethyl ester
3-hydroxy-5,7-bis(phenylmethoxy)-2-(4-phenylmethoxyphenyl)chromen-4-one
5,7-bis(benzyloxy)-2-(4-(benzyloxy)phenyl)-3-(((2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-4H-chromen-4-one

Downstream Product

(2R,3R,4R,5R,6S)-6-methyloxane-2,3,4,5-tetrol
kaempferol

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