1693-48-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1693-48-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,6,9 and 3 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1693-48:
(6*1)+(5*6)+(4*9)+(3*3)+(2*4)+(1*8)=97
97 % 10 = 7
So 1693-48-7 is a valid CAS Registry Number.