2774-02-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2774-02-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,7,7 and 4 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 2774-02:
(6*2)+(5*7)+(4*7)+(3*4)+(2*0)+(1*2)=89
89 % 10 = 9
So 2774-02-9 is a valid CAS Registry Number.