26665-82-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 26665-82-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,6,6,6 and 5 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 26665-82:
(7*2)+(6*6)+(5*6)+(4*6)+(3*5)+(2*8)+(1*2)=137
137 % 10 = 7
So 26665-82-7 is a valid CAS Registry Number.