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872003-41-3

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872003-41-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 872003-41-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,2,0,0 and 3 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 872003-41:
(8*8)+(7*7)+(6*2)+(5*0)+(4*0)+(3*3)+(2*4)+(1*1)=143
143 % 10 = 3
So 872003-41-3 is a valid CAS Registry Number.

872003-41-3Relevant articles and documents

Synthesis of optically active vomifoliol and roseoside stereoisomers

Yamano, Yumiko,Ito, Masayoshi

, p. 541 - 546 (2007/10/03)

A synthesis of optically active vomifoliol stereoisomers 1-4 and their glucosides, roseoside stereoisomers 5-8, was accomplished via α-acetylenic alcohol 11a or 11b effectively prepared by an asymmetric transfer hydrogenation of α,β-acetylenic ketone 10. Simultaneous separation of these stereoisomers by HPLC was also perfomed.

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