Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Palmitic acid
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 4H-1-Benzopyran-4-one,5-hydroxy-2-(4-hydroxy-3-methoxyphenyl)-3,6,7,8-tetramethoxy-
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

50439-47-9

50439-47-9 structure

50439-47-9 structure

Name: 4H-1-Benzopyran-4-one,5-hydroxy-2-(4-hydroxy-3-methoxyphenyl)-3,6,7,8-tetramethoxy-
Chemical Name: 5-hydroxy-2-(4-hydroxy-3-methoxyphenyl)-3,6,7,8-tetramethoxychromen-4-one
CAS Number: 50439-47-9
Molecular Formula: C₂₀H₂₀O₉
Molecular Weight: 404.36700
Create Date: 2017-11-04 09:24:59
Modify Date: 2025-09-13 10:53:13

Name	5-hydroxy-2-(4-hydroxy-3-methoxyphenyl)-3,6,7,8-tetramethoxychromen-4-one
Synonyms	5,4'-Dihydroxy-3,6,7,8,3'-pentamethoxyflavone MS/433 3'-Methoxycalycopterin

Density	1.44g/cm3
Boiling Point	658.8ºC at 760 mmHg
Molecular Formula	C₂₀H₂₀O₉
Molecular Weight	404.36700
Flash Point	234.8ºC
Exact Mass	404.11100
PSA	116.82000
LogP	2.91420
Index of Refraction	1.628

HS Code	2914509090

Precursor 3
1486-52-8 55742-65-9 173217-77-1
DownStream 0

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%

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