2347-90-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2347-90-2 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 7 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 2347-90:
(6*2)+(5*3)+(4*4)+(3*7)+(2*9)+(1*0)=82
82 % 10 = 2
So 2347-90-2 is a valid CAS Registry Number.