178685-51-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 178685-51-3 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 5 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 178685-51:
(8*1)+(7*7)+(6*8)+(5*6)+(4*8)+(3*5)+(2*5)+(1*1)=193
193 % 10 = 3
So 178685-51-3 is a valid CAS Registry Number.