26437-91-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 26437-91-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,6,4,3 and 7 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 26437-91:
(7*2)+(6*6)+(5*4)+(4*3)+(3*7)+(2*9)+(1*1)=122
122 % 10 = 2
So 26437-91-2 is a valid CAS Registry Number.