23837-40-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23837-40-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,8,3 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 23837-40:
(7*2)+(6*3)+(5*8)+(4*3)+(3*7)+(2*4)+(1*0)=113
113 % 10 = 3
So 23837-40-3 is a valid CAS Registry Number.