188412-21-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 188412-21-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,4,1 and 2 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 188412-21:
(8*1)+(7*8)+(6*8)+(5*4)+(4*1)+(3*2)+(2*2)+(1*1)=147
147 % 10 = 7
So 188412-21-7 is a valid CAS Registry Number.