197848-07-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 197848-07-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,7,8,4 and 8 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 197848-07:
(8*1)+(7*9)+(6*7)+(5*8)+(4*4)+(3*8)+(2*0)+(1*7)=200
200 % 10 = 0
So 197848-07-0 is a valid CAS Registry Number.
197848-07-0Relevant articles and documents
Asymmetric synthesis of the pentacyclic ring system of aspidosperma alkaloids
Okada, Kunisuke,Murakami, Kazumasa,Tanino, Hideo
, p. 14247 - 14254 (1997)
The asymmetric synthesis of pentacyclic compound 1 3, a known intermediate in the synthesis of 1-acetylaspidospermidine, was conducted via the condensation of 2-hydroxytryptamine with chiral C9 lactone 9, readily available from triol 4.