23515-42-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23515-42-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,5,1 and 5 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 23515-42:
(7*2)+(6*3)+(5*5)+(4*1)+(3*5)+(2*4)+(1*2)=86
86 % 10 = 6
So 23515-42-6 is a valid CAS Registry Number.