Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 4H-1-Benzopyran-4-one,3-hydroxy-7-methoxy-2-(4-methoxyphenyl)-
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,3-hydroxy-7-methoxy-2-(4-methoxyphenyl)-
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

13198-99-7

13198-99-7 structure

13198-99-7 structure

Name: 4H-1-Benzopyran-4-one,3-hydroxy-7-methoxy-2-(4-methoxyphenyl)-
Chemical Name: 3-hydroxy-7-methoxy-2-(4-methoxyphenyl)chromen-4-one
CAS Number: 13198-99-7
Molecular Formula: C₁₇H₁₄O₅
Molecular Weight: 298.29000
Create Date: 2017-12-23 07:34:33
Modify Date: 2025-08-21 13:24:34

Name	3-hydroxy-7-methoxy-2-(4-methoxyphenyl)chromen-4-one
Synonyms	3-hydroxy-7,4'-dimethoxyflavone 3-hydroxy-4',7-dimethoxyflavone 7,4'-dimethoxyflavonol

Density	1.342g/cm3
Boiling Point	476.8ºC at 760mmHg
Molecular Formula	C₁₇H₁₄O₅
Molecular Weight	298.29000
Flash Point	177.2ºC
Exact Mass	298.08400
PSA	68.90000
LogP	3.18280
Vapour Pressure	6.7E-10mmHg at 25°C
Index of Refraction	1.63

HS Code	2914509090

2198-19-8 structure

2198-19-8

~73%

13198-99-7 structure

13198-99-7

Literature: Briggs, Malcolm T.; Duncan, Graham L. S.; Thornber, Craig W. Journal of Chemical Research, Miniprint, 1982 , # 9 p. 2461 - 2487

552-41-0 structure

552-41-0

~%

13198-99-7 structure

13198-99-7

Literature: Sobottka; Werner; Blaschke; Kiefer; Nowe; Dannhardt; Schapoval; Schenkel; Scriba Archiv der Pharmazie, 2000 , vol. 333, # 7 p. 205 - 210

123-11-5 structure

123-11-5

~%

13198-99-7 structure

13198-99-7

Literature: Sobottka; Werner; Blaschke; Kiefer; Nowe; Dannhardt; Schapoval; Schenkel; Scriba Archiv der Pharmazie, 2000 , vol. 333, # 7 p. 205 - 210

552-41-0 structure

552-41-0

123-11-5 structure

123-11-5

~%

13198-99-7 structure

13198-99-7

Literature: Juvale, Kapil; Stefan, Katja; Wiese, Michael European Journal of Medicinal Chemistry, 2013 , vol. 67, p. 115 - 126

60965-23-3 structure

60965-23-3

123-11-5 structure

123-11-5

~%

13198-99-7 structure

13198-99-7

Literature: Gowan et al. Journal of the Chemical Society, 1955 , p. 862,866

Precursor 4
2198-19-8 552-41-0 123-11-5 60965-23-3
DownStream 1
2034-65-3

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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