1263275-21-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1263275-21-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,3,2,7 and 5 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1263275-21:
(9*1)+(8*2)+(7*6)+(6*3)+(5*2)+(4*7)+(3*5)+(2*2)+(1*1)=143
143 % 10 = 3
So 1263275-21-3 is a valid CAS Registry Number.