21001-95-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21001-95-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,0,0 and 1 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 21001-95:
(7*2)+(6*1)+(5*0)+(4*0)+(3*1)+(2*9)+(1*5)=46
46 % 10 = 6
So 21001-95-6 is a valid CAS Registry Number.