123739-84-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 123739-84-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,7,3 and 9 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 123739-84:
(8*1)+(7*2)+(6*3)+(5*7)+(4*3)+(3*9)+(2*8)+(1*4)=134
134 % 10 = 4
So 123739-84-4 is a valid CAS Registry Number.
123739-84-4Relevant articles and documents
REGIOSELECTIVE DEPROTECTION OF 3',5'-O-ACYLATED PYRIMIDINE NUCLEOSIDES BY LIPASE AND ESTERASE
Uemura, Atsuhiko,Nozaki, Kenji,Yamashita, Jun-ichi,Yasumoto, Mitsugi
, p. 3819 - 3820 (2007/10/02)
A lipase was found to catalyze the regioselective hydrolysis at the secondary hydroxyl group of 2'-deoxy 3',5'-di O-hexanoyl pyrimidine nuclosides, whereas a protease catalyzes that at the primary hydroxyl group.