842974-39-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 842974-39-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,2,9,7 and 4 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 842974-39:
(8*8)+(7*4)+(6*2)+(5*9)+(4*7)+(3*4)+(2*3)+(1*9)=204
204 % 10 = 4
So 842974-39-4 is a valid CAS Registry Number.