23780-15-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23780-15-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,7,8 and 0 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 23780-15:
(7*2)+(6*3)+(5*7)+(4*8)+(3*0)+(2*1)+(1*5)=106
106 % 10 = 6
So 23780-15-6 is a valid CAS Registry Number.