178218-30-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 178218-30-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,8,2,1 and 8 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 178218-30:
(8*1)+(7*7)+(6*8)+(5*2)+(4*1)+(3*8)+(2*3)+(1*0)=149
149 % 10 = 9
So 178218-30-9 is a valid CAS Registry Number.