129393-69-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129393-69-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,3,9 and 3 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 129393-69:
(8*1)+(7*2)+(6*9)+(5*3)+(4*9)+(3*3)+(2*6)+(1*9)=157
157 % 10 = 7
So 129393-69-7 is a valid CAS Registry Number.