617689-98-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 617689-98-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,1,7,6,8 and 9 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 617689-98:
(8*6)+(7*1)+(6*7)+(5*6)+(4*8)+(3*9)+(2*9)+(1*8)=212
212 % 10 = 2
So 617689-98-2 is a valid CAS Registry Number.