27657-22-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 27657-22-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,6,5 and 7 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 27657-22:
(7*2)+(6*7)+(5*6)+(4*5)+(3*7)+(2*2)+(1*2)=133
133 % 10 = 3
So 27657-22-3 is a valid CAS Registry Number.