328974-72-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 328974-72-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,2,8,9,7 and 4 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 328974-72:
(8*3)+(7*2)+(6*8)+(5*9)+(4*7)+(3*4)+(2*7)+(1*2)=187
187 % 10 = 7
So 328974-72-7 is a valid CAS Registry Number.