210531-50-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 210531-50-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,0,5,3 and 1 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 210531-50:
(8*2)+(7*1)+(6*0)+(5*5)+(4*3)+(3*1)+(2*5)+(1*0)=73
73 % 10 = 3
So 210531-50-3 is a valid CAS Registry Number.