423748-11-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 423748-11-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,3,7,4 and 8 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 423748-11:
(8*4)+(7*2)+(6*3)+(5*7)+(4*4)+(3*8)+(2*1)+(1*1)=142
142 % 10 = 2
So 423748-11-2 is a valid CAS Registry Number.