221004-38-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 221004-38-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,0,0 and 4 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 221004-38:
(8*2)+(7*2)+(6*1)+(5*0)+(4*0)+(3*4)+(2*3)+(1*8)=62
62 % 10 = 2
So 221004-38-2 is a valid CAS Registry Number.