121925-57-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121925-57-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,9,2 and 5 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 121925-57:
(8*1)+(7*2)+(6*1)+(5*9)+(4*2)+(3*5)+(2*5)+(1*7)=113
113 % 10 = 3
So 121925-57-3 is a valid CAS Registry Number.
121925-57-3Relevant academic research and scientific papers
HIGHLY REGIOSELECTIVE RING-OPENING OF α-SUBSTITUTED CYCLIC ACID ANHYDRIDES CATALYZED BY LIPASE
Hiratake, Jun,Yamamoto, Kazuyoshi,Yamamoto, Yukio,Oda, Jun'ichi
, p. 1555 - 1556 (2007/10/02)
Lipase Amano P irreversibly catalyzed a ring-opening of α-substituted cyclic acid anhydrides 1 preferentially at the less hindered carbonyl group to give monoesters with high regioselectivity.
