129493-18-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129493-18-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,4,9 and 3 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 129493-18:
(8*1)+(7*2)+(6*9)+(5*4)+(4*9)+(3*3)+(2*1)+(1*8)=151
151 % 10 = 1
So 129493-18-1 is a valid CAS Registry Number.