97102-79-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97102-79-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,1,0 and 2 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 97102-79:
(7*9)+(6*7)+(5*1)+(4*0)+(3*2)+(2*7)+(1*9)=139
139 % 10 = 9
So 97102-79-9 is a valid CAS Registry Number.