138963-03-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138963-03-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,9,6 and 3 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 138963-03:
(8*1)+(7*3)+(6*8)+(5*9)+(4*6)+(3*3)+(2*0)+(1*3)=158
158 % 10 = 8
So 138963-03-8 is a valid CAS Registry Number.
138963-03-8Relevant articles and documents
Method of manufacturing D-allosan
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, (2008/06/13)
The carbonyl group at the 2-position of levoglucosenone is reduced to obtain a hydroxyl group having a β-configuration. The hydroxyl group having a β-configuration is reversed to an α-configuration, and hydroxyl groups are added at the 3- and 4-positions