53-56-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 53-56-5 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 5 and 3 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 53-56:
(4*5)+(3*3)+(2*5)+(1*6)=45
45 % 10 = 5
So 53-56-5 is a valid CAS Registry Number.
InChI:InChI=1/C23H26N2/c1-24(2)19-23(21-14-8-4-9-15-21)25(22-16-10-5-11-17-22)18-20-12-6-3-7-13-20/h3-17,23H,18-19H2,1-2H3