178311-41-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 178311-41-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,8,3,1 and 1 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 178311-41:
(8*1)+(7*7)+(6*8)+(5*3)+(4*1)+(3*1)+(2*4)+(1*1)=136
136 % 10 = 6
So 178311-41-6 is a valid CAS Registry Number.