1332391-17-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1332391-17-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,2,3,9 and 1 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1332391-17:
(9*1)+(8*3)+(7*3)+(6*2)+(5*3)+(4*9)+(3*1)+(2*1)+(1*7)=129
129 % 10 = 9
So 1332391-17-9 is a valid CAS Registry Number.