221892-32-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 221892-32-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,8,9 and 2 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 221892-32:
(8*2)+(7*2)+(6*1)+(5*8)+(4*9)+(3*2)+(2*3)+(1*2)=126
126 % 10 = 6
So 221892-32-6 is a valid CAS Registry Number.