71338-23-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71338-23-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,3,3 and 8 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 71338-23:
(7*7)+(6*1)+(5*3)+(4*3)+(3*8)+(2*2)+(1*3)=113
113 % 10 = 3
So 71338-23-3 is a valid CAS Registry Number.