872821-37-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 872821-37-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,2,8,2 and 1 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 872821-37:
(8*8)+(7*7)+(6*2)+(5*8)+(4*2)+(3*1)+(2*3)+(1*7)=189
189 % 10 = 9
So 872821-37-9 is a valid CAS Registry Number.