2317-94-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2317-94-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,3,1 and 7 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 2317-94:
(6*2)+(5*3)+(4*1)+(3*7)+(2*9)+(1*4)=74
74 % 10 = 4
So 2317-94-4 is a valid CAS Registry Number.