873658-22-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 873658-22-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,3,6,5 and 8 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 873658-22:
(8*8)+(7*7)+(6*3)+(5*6)+(4*5)+(3*8)+(2*2)+(1*2)=211
211 % 10 = 1
So 873658-22-1 is a valid CAS Registry Number.