1748-42-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1748-42-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,7,4 and 8 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1748-42:
(6*1)+(5*7)+(4*4)+(3*8)+(2*4)+(1*2)=91
91 % 10 = 1
So 1748-42-1 is a valid CAS Registry Number.