178689-86-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 178689-86-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,8,6,8 and 9 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 178689-86:
(8*1)+(7*7)+(6*8)+(5*6)+(4*8)+(3*9)+(2*8)+(1*6)=216
216 % 10 = 6
So 178689-86-6 is a valid CAS Registry Number.