102821-18-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 102821-18-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,2,8,2 and 1 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 102821-18:
(8*1)+(7*0)+(6*2)+(5*8)+(4*2)+(3*1)+(2*1)+(1*8)=81
81 % 10 = 1
So 102821-18-1 is a valid CAS Registry Number.