23841-88-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23841-88-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,8,4 and 1 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 23841-88:
(7*2)+(6*3)+(5*8)+(4*4)+(3*1)+(2*8)+(1*8)=115
115 % 10 = 5
So 23841-88-5 is a valid CAS Registry Number.