Nowhere. I am strictly against home labs from "pseudo-chemists". Do you have a related scientific background?
That's your private opinion. You are entitled to one.
Excellent Borek.
Now for my private opinion.
People like you "OC pro" are destroying science, and are at the root of the stupidification of society. Prior to the last 50 years science at home was commonplace, now because people like you power tripping on telling others what they can and cannot do on their private property, we see kids who would rather play video games rather than play with chemistry sets. There are journals from the 50s called the Journal of Amateur Chemistry, but thanks to the mentality of those like you, such support for DIY science has dried up.
Who is to be the future scientists other than those who develop an interest in it? Interest is cultivated from experience and vast numbers of chemists I know have their stories from when they were 14 and made nitrogen triiodide or made their own fireworks. Far greater numbers of scientists I know have some experience with DIY chemistry prior to their formal training, than those that do not. In fact my supervisor and I trade stories about our various chemical adventures in our youth.
Goodyear performed the first vulcanization of rubber on his stove.
Nobel performed early work with nitroglycerine in a shed outside stockholm
Bakelite was invented in a home lab
Scheele, discoverer of more things than I care to list, did his work in his shed over 20 years, while working as a pharmacist during the day
Perkin discovered Mauvine at home
The Hall process isolating Al from cryolite was done in a backyard
Nitrocellulose was discovered by schoenbien in a kitchen
But hey, none of that matters as they were "pseudo-chemists", right?
To get back to the original question. If you are in the US, maybe ask Elemental Scientific if they can get it for you. They even shipped me things in the past, and I was in Canada back then. Are you trying to make PEDOT(I have some light-emitting conductive polymer research under my belt from a while ago, and I took experiments home to finish on a regular basis.)? I have been out of the home chemistry game for a few years now thanks to being allowed total academic freedom(where I do not pay for my chemicals out of pocket!), so my suppliers list is out of date. Sometimes photography suppliers will order things for you, jdphotochem did for me before they went out of business.
MissPhosgene: It is expensive. literature compounds are easy enough to characterize cheaply, but doing anything new, the NMRs get expensive. But if just recreational for own interest, the only price is glass and chemicals.