2378-98-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2378-98-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,3,7 and 8 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 2378-98:
(6*2)+(5*3)+(4*7)+(3*8)+(2*9)+(1*8)=105
105 % 10 = 5
So 2378-98-5 is a valid CAS Registry Number.