103129-16-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 103129-16-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,1,2 and 9 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 103129-16:
(8*1)+(7*0)+(6*3)+(5*1)+(4*2)+(3*9)+(2*1)+(1*6)=74
74 % 10 = 4
So 103129-16-4 is a valid CAS Registry Number.