1948-16-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1948-16-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,9,4 and 8 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1948-16:
(6*1)+(5*9)+(4*4)+(3*8)+(2*1)+(1*6)=99
99 % 10 = 9
So 1948-16-9 is a valid CAS Registry Number.