42974-15-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42974-15-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,9,7 and 4 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 42974-15:
(7*4)+(6*2)+(5*9)+(4*7)+(3*4)+(2*1)+(1*5)=132
132 % 10 = 2
So 42974-15-2 is a valid CAS Registry Number.