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(E)-3-[4-(2-Chloro-acetoxy)-3-methoxy-phenyl]-acrylic acid (2R,3S,4S,5R,6R)-6-[2-(4-allyloxy-phenyl)-ethoxy]-3,4,5-trihydroxy-tetrahydro-pyran-2-ylmethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

190123-02-5

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  • (E)-3-[4-(2-Chloro-acetoxy)-3-methoxy-phenyl]-acrylic acid (2R,3S,4S,5R,6R)-6-[2-(4-allyloxy-phenyl)-ethoxy]-3,4,5-trihydroxy-tetrahydro-pyran-2-ylmethyl ester

    Cas No: 190123-02-5

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  • (E)-3-[4-(2-Chloro-acetoxy)-3-methoxy-phenyl]-acrylic acid (2R,3S,4S,5R,6R)-6-[2-(4-allyloxy-phenyl)-ethoxy]-3,4,5-trihydroxy-tetrahydro-pyran-2-ylmethyl ester

    Cas No: 190123-02-5

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190123-02-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 190123-02-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,0,1,2 and 3 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 190123-02:
(8*1)+(7*9)+(6*0)+(5*1)+(4*2)+(3*3)+(2*0)+(1*2)=95
95 % 10 = 5
So 190123-02-5 is a valid CAS Registry Number.

190123-02-5Relevant articles and documents

Total synthesis of the phenylpropanoid glycoside, grayanoside A

Zhang, San-Qi,Li, Zhong-Jun,Wang, An-Bang,Meng-Shen, Cai,Feng, Rui

, p. 281 - 285 (2007/10/03)

Grayanoside A, 2-(4-hydroxyphenyl)ethyl 6-O-feruloyl-β-D-glucopyranoside, was synthesized for the first time by using chloroacetyl groups for the protection of hydroxy functions. 2-(4-Allyloxyphenyl)ethyl 4-O-[(4-O-allyl)feruloyl]-2,3,6-tri-O-chloroacetyl-β-D-glucopyranoside (12) was synthesized from 2-(4-allyloxyphenyl)ethyl 4,6-O-benzylidene-β-D-glucopyranoside (8) in four steps with the goal of preparing syringalide B. It was found, however, that the feruloyl group migrated from the 4- to the 6-position of the glycopyranoside during the deprotection of 12.

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