2293-84-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2293-84-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,2,9 and 3 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 2293-84:
(6*2)+(5*2)+(4*9)+(3*3)+(2*8)+(1*4)=87
87 % 10 = 7
So 2293-84-7 is a valid CAS Registry Number.