27722-56-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 27722-56-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,7,2 and 2 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 27722-56:
(7*2)+(6*7)+(5*7)+(4*2)+(3*2)+(2*5)+(1*6)=121
121 % 10 = 1
So 27722-56-1 is a valid CAS Registry Number.