1648-15-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1648-15-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,6,4 and 8 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1648-15:
(6*1)+(5*6)+(4*4)+(3*8)+(2*1)+(1*5)=83
83 % 10 = 3
So 1648-15-3 is a valid CAS Registry Number.