178311-93-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 178311-93-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,8,3,1 and 1 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 178311-93:
(8*1)+(7*7)+(6*8)+(5*3)+(4*1)+(3*1)+(2*9)+(1*3)=148
148 % 10 = 8
So 178311-93-8 is a valid CAS Registry Number.