258270-21-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 258270-21-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,8,2,7 and 0 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 258270-21:
(8*2)+(7*5)+(6*8)+(5*2)+(4*7)+(3*0)+(2*2)+(1*1)=142
142 % 10 = 2
So 258270-21-2 is a valid CAS Registry Number.
258270-21-2Relevant articles and documents
Synthesis of L-glucose from D-gulono-1,4-lactone
Hajko, Janos,Liptak, Andras,Pozsgay, Vince
, p. 116 - 120 (2007/10/03)
An efficient method for the synthesis of L-glucose from D-gulono-1,4-lactone via 1,2,3,4,5-penta-O-benzyl/acetyl/benzoyl-D-gulitol is described in 34-53% overall yield. Copyright (C) 1999 Elsevier Science Ltd.