71218-98-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71218-98-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,2,1 and 8 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 71218-98:
(7*7)+(6*1)+(5*2)+(4*1)+(3*8)+(2*9)+(1*8)=119
119 % 10 = 9
So 71218-98-9 is a valid CAS Registry Number.