26929-23-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 26929-23-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,6,9,2 and 9 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 26929-23:
(7*2)+(6*6)+(5*9)+(4*2)+(3*9)+(2*2)+(1*3)=137
137 % 10 = 7
So 26929-23-7 is a valid CAS Registry Number.