221082-28-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 221082-28-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,0,8 and 2 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 221082-28:
(8*2)+(7*2)+(6*1)+(5*0)+(4*8)+(3*2)+(2*2)+(1*8)=86
86 % 10 = 6
So 221082-28-6 is a valid CAS Registry Number.