20237-51-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20237-51-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,2,3 and 7 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 20237-51:
(7*2)+(6*0)+(5*2)+(4*3)+(3*7)+(2*5)+(1*1)=68
68 % 10 = 8
So 20237-51-8 is a valid CAS Registry Number.