223748-98-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 223748-98-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,3,7,4 and 8 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 223748-98:
(8*2)+(7*2)+(6*3)+(5*7)+(4*4)+(3*8)+(2*9)+(1*8)=149
149 % 10 = 9
So 223748-98-9 is a valid CAS Registry Number.