23270-01-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23270-01-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,2,7 and 0 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 23270-01:
(7*2)+(6*3)+(5*2)+(4*7)+(3*0)+(2*0)+(1*1)=71
71 % 10 = 1
So 23270-01-1 is a valid CAS Registry Number.