178211-07-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 178211-07-9 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 1 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 178211-07:
(8*1)+(7*7)+(6*8)+(5*2)+(4*1)+(3*1)+(2*0)+(1*7)=129
129 % 10 = 9
So 178211-07-9 is a valid CAS Registry Number.