Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Palmitic acid
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Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
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Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: (2R-trans)-2-[3,4-bis(phenylmethoxy)phenyl]-3,4-dihydro-5,7-bis(phenylmethoxy)-2H-1-benzopyran-3-ol
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

20728-73-8

20728-73-8 structure

20728-73-8 structure

Name: (2R-trans)-2-[3,4-bis(phenylmethoxy)phenyl]-3,4-dihydro-5,7-bis(phenylmethoxy)-2H-1-benzopyran-3-ol
Chemical Name: (2R,3S)-2-[3,4-bis(phenylmethoxy)phenyl]-5,7-bis(phenylmethoxy)-3,4-dihydro-2H-chromen-3-ol
CAS Number: 20728-73-8
Molecular Formula: C₄₃H₃₈O₆
Molecular Weight: 650.75800
Create Date: 2016-04-30 09:14:20
Modify Date: 2026-07-16 19:17:42

Name	(2R,3S)-2-[3,4-bis(phenylmethoxy)phenyl]-5,7-bis(phenylmethoxy)-3,4-dihydro-2H-chromen-3-ol
Synonyms	2H-1-Benzopyran-3-ol, 2-[3,4-bis(phenylmethoxy)phenyl]-3,4-dihydro-5,7-bis(phenylmethoxy)-, (2R,3S) 2α-[3,4-Bis(benzyloxy)phenyl]-5,7-bis(benzyloxy)chroman-3β-ol EINECS 243-993-8 2α-[3,4-Bis(benzyloxy)phenyl]-5,7-bis(benzyloxy)-3,4-dihydro-2H-1-benzopyran-3β-ol (2R,3S)-2-[3,4-Bis(benzyloxy)phenyl]-5,7-bis(benzyloxy)-3,4-dihydro-2H-1-benzopyran-3-ol 5,7,3',4'-Tetra-O-benzylcatechin 5,7,3′,4′-Tetra-O-benzylcatechin (2R)-2α-[3,4-Bis(benzyloxy)phenyl]-5,7-bis(benzyloxy)chroman-3β-ol (2R)-2α-[3,4-Bis(benzyloxy)phenyl]-5,7-bis(benzyloxy)-3,4-dihydro-2H-1-benzopyran-3β-ol (2R)-2α-[3,4-Bis(phenylmethoxy)phenyl]-3,4-dihydro-5,7-bis(phenylmethoxy)-2H-1-benzopyran-3β-ol (2R,3S)-5,7-bis(benzyloxy)-2-(3,4-bis(benzyloxy)phenyl)chroman-3-ol(WXG03299)

Density	1.234g/cm3
Boiling Point	813.8ºC at 760mmHg
Molecular Formula	C₄₃H₃₈O₆
Molecular Weight	650.75800
Flash Point	445.9ºC
Exact Mass	650.26700
PSA	66.38000
LogP	9.03970
Vapour Pressure	0mmHg at 25°C
Index of Refraction	1.643

HS Code	2932999099

Precursor 9
100-44-7 154-23-4 732298-11-2 100-39-0
87292-54-4 16198-01-9 5447-02-9 203571-40-8
362632-29-9
DownStream 7
29106-49-8 154-23-4 1257-08-5 20315-25-7
29838-67-3 23567-23-9 29106-51-2

HS Code	2932999099
Summary	2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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