21610-56-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21610-56-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,6,1 and 0 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 21610-56:
(7*2)+(6*1)+(5*6)+(4*1)+(3*0)+(2*5)+(1*6)=70
70 % 10 = 0
So 21610-56-0 is a valid CAS Registry Number.