56537-68-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 56537-68-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,5,3 and 7 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 56537-68:
(7*5)+(6*6)+(5*5)+(4*3)+(3*7)+(2*6)+(1*8)=149
149 % 10 = 9
So 56537-68-9 is a valid CAS Registry Number.