26643-48-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 26643-48-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,6,6,4 and 3 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 26643-48:
(7*2)+(6*6)+(5*6)+(4*4)+(3*3)+(2*4)+(1*8)=121
121 % 10 = 1
So 26643-48-1 is a valid CAS Registry Number.