42748-49-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42748-49-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,7,4 and 8 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 42748-49:
(7*4)+(6*2)+(5*7)+(4*4)+(3*8)+(2*4)+(1*9)=132
132 % 10 = 2
So 42748-49-2 is a valid CAS Registry Number.