2349-65-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2349-65-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,3,4 and 9 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 2349-65:
(6*2)+(5*3)+(4*4)+(3*9)+(2*6)+(1*5)=87
87 % 10 = 7
So 2349-65-7 is a valid CAS Registry Number.