21624-00-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21624-00-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,6,2 and 4 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 21624-00:
(7*2)+(6*1)+(5*6)+(4*2)+(3*4)+(2*0)+(1*0)=70
70 % 10 = 0
So 21624-00-0 is a valid CAS Registry Number.