98771-84-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 98771-84-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,7,7 and 1 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 98771-84:
(7*9)+(6*8)+(5*7)+(4*7)+(3*1)+(2*8)+(1*4)=197
197 % 10 = 7
So 98771-84-7 is a valid CAS Registry Number.