97974-56-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97974-56-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,9,7 and 4 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 97974-56:
(7*9)+(6*7)+(5*9)+(4*7)+(3*4)+(2*5)+(1*6)=206
206 % 10 = 6
So 97974-56-6 is a valid CAS Registry Number.