21001-96-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21001-96-7 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 6 respectively.
Calculate Digit Verification of CAS Registry Number 21001-96:
(7*2)+(6*1)+(5*0)+(4*0)+(3*1)+(2*9)+(1*6)=47
47 % 10 = 7
So 21001-96-7 is a valid CAS Registry Number.