129905-23-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129905-23-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,9,0 and 5 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 129905-23:
(8*1)+(7*2)+(6*9)+(5*9)+(4*0)+(3*5)+(2*2)+(1*3)=143
143 % 10 = 3
So 129905-23-3 is a valid CAS Registry Number.
129905-23-3Relevant articles and documents
Derivatives of methyl beta-lactoside as substrates for and inhibitors of beta-D-galactosidase from E. coli.
Bock,Adelhorst
, p. 131 - 149 (2007/10/02)
The 2'-,4'-, and 6'-deoxy derivatives of methyl beta-lactoside have been synthesised by deoxygenation at positions 2', 4', and 6', and the 3'-deoxy derivative was obtained by a glycosylation reaction. The 2'-O-methyl, 2'-O-benzyl, 2'-amino-2'-deoxy, and 1