1391633-67-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1391633-67-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,9,1,6,3 and 3 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1391633-67:
(9*1)+(8*3)+(7*9)+(6*1)+(5*6)+(4*3)+(3*3)+(2*6)+(1*7)=172
172 % 10 = 2
So 1391633-67-2 is a valid CAS Registry Number.