23547-09-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23547-09-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,5,4 and 7 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 23547-09:
(7*2)+(6*3)+(5*5)+(4*4)+(3*7)+(2*0)+(1*9)=103
103 % 10 = 3
So 23547-09-3 is a valid CAS Registry Number.