42729-97-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42729-97-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,7,2 and 9 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 42729-97:
(7*4)+(6*2)+(5*7)+(4*2)+(3*9)+(2*9)+(1*7)=135
135 % 10 = 5
So 42729-97-5 is a valid CAS Registry Number.