97854-86-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97854-86-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,8,5 and 4 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 97854-86:
(7*9)+(6*7)+(5*8)+(4*5)+(3*4)+(2*8)+(1*6)=199
199 % 10 = 9
So 97854-86-9 is a valid CAS Registry Number.