129551-75-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129551-75-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,5,5 and 1 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 129551-75:
(8*1)+(7*2)+(6*9)+(5*5)+(4*5)+(3*1)+(2*7)+(1*5)=143
143 % 10 = 3
So 129551-75-3 is a valid CAS Registry Number.