221301-35-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 221301-35-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,3,0 and 1 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 221301-35:
(8*2)+(7*2)+(6*1)+(5*3)+(4*0)+(3*1)+(2*3)+(1*5)=65
65 % 10 = 5
So 221301-35-5 is a valid CAS Registry Number.