1276643-15-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1276643-15-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,7,6,6,4 and 3 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1276643-15:
(9*1)+(8*2)+(7*7)+(6*6)+(5*6)+(4*4)+(3*3)+(2*1)+(1*5)=172
172 % 10 = 2
So 1276643-15-2 is a valid CAS Registry Number.