181229-67-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 181229-67-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,1,2,2 and 9 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 181229-67:
(8*1)+(7*8)+(6*1)+(5*2)+(4*2)+(3*9)+(2*6)+(1*7)=134
134 % 10 = 4
So 181229-67-4 is a valid CAS Registry Number.