55701-21-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55701-21-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,7,0 and 1 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 55701-21:
(7*5)+(6*5)+(5*7)+(4*0)+(3*1)+(2*2)+(1*1)=108
108 % 10 = 8
So 55701-21-8 is a valid CAS Registry Number.