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190776-23-9

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190776-23-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 190776-23-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,0,7,7 and 6 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 190776-23:
(8*1)+(7*9)+(6*0)+(5*7)+(4*7)+(3*6)+(2*2)+(1*3)=159
159 % 10 = 9
So 190776-23-9 is a valid CAS Registry Number.

190776-23-9Relevant academic research and scientific papers

An asymmetric synthesis of the ABC ring system of 8-demethyltaxoids from optically active 8-membered ring compound via intramolecular aldol and pinacol coupling reactions

Shiina, Isamu,Nishimura, Toshihiro,Ohkawa, Naoto,Sakoh, Hiroki,Nishimura, Koji,Saitoh, Katsuyuki,Mukaiyama, Teruaki

, p. 419 - 420 (2007/10/03)

Optically active novel taxoids were efficiently synthesized from 8-membered ring compound 3 by successive constructions of BC and ABC ring systems via each intramolecular aldol and intramolecular pinacol coupling reactions.

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