26873-18-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 26873-18-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,6,8,7 and 3 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 26873-18:
(7*2)+(6*6)+(5*8)+(4*7)+(3*3)+(2*1)+(1*8)=137
137 % 10 = 7
So 26873-18-7 is a valid CAS Registry Number.
InChI:InChI=1/C23H16N2O2/c26-21-13-12-20(19-7-4-14-24-23(19)21)25-15-22(27)18-10-8-17(9-11-18)16-5-2-1-3-6-16/h1-15,26H/b25-15+