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Dissociatives What is Ketamine Precursor A?

G

G_Chem

Bluelight Crew
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Apr 17, 2015
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This question is more important now than ever before. Looking at DrugsData nearly all the samples on the first page show what they call Ketamine Precursor A in varying quantities.

What is this precursor and even more importantly what could it potentially be doing to peoples health? If I need to contact Erowid folks I will but I’m hoping someone here knows.

-GC
 
No idea but interesting. Following.

Any idea if it's appearing in only one certain form or is it present across mixed forms? (needle/long shard, fine/sugar/smallball, rock, etc)

If its just one form then maybe it was just 1 massive batch that spread over the country and hopefully it'll be gone soon (without hurting anyone)
🤔

I have read the ingredients and synthesis online, if you google it you will at least get a list of all the precursors, maybe you could do some research and see if any of them are particularly toxic? I'd do it but i was just about to hit the hay its 3:11am and im stoned
 
Could be this. Got it by googling ketamine precursor, and looking on wiki list of drug precursors. Seems to be more easily bought and converted to ket through fairly facile means so would make sense if it's in street ket (why do all the hard synthesis work when you can outsource it to something legal and one-pottable).

en.m.wikipedia.org

1-(2-Chloro-N-methylbenzimidoyl)cyclopentanol - Wikipedia

en.m.wikipedia.org en.m.wikipedia.org
 
The wiki article claims it is not active as a drug, though that doesn't mean it is necessarily safe. Apparently it can be converted to ketamine by dissolving in a suitable solvent and heating with no additional chemicals or steps. You learn something new every day. Sounds like someone is doing that, and it didn't all get converted.
 
Thanks for all the responses. I really wonder what this stuff does, very possible it isn’t active alone but interacts with ketamine. Also could be hard/er on the bladder.

-GC
 
Another question, is there a simple way to remove it from street ketamine? It looks quite pervasive in samples sent to testing labs.
 
Freeotrope said:
Another question, is there a simple way to remove it from street ketamine? It looks quite pervasive in samples sent to testing labs.
Click to expand...

Supposedly it converts to K when heated in a high BP solvent. At least according to Wikipedia..

So not too hard to convert but we’d need to experiment with K with lab results before and after. I don’t have the loot for that unfortunately.

-GC
 
Did they just recently start looking for it in samples? This might have been there all along without anyone knowing it until someone thought to look.

Edit - It looks like it first popped up in some online samples in 2019. In 2020 it was in a couple of major cities and in a lot of online samples. This year it showed up in multiple online samples, some large cities on the west coast of America, the usual hubs in the EU, and looks to be spreading out from there. I'm guessing the place people were going for bulk changed.

I don't mess with K much so excuse my ignorance but how common is it to find it mixed with other substances? Every time I've been offered K there was no mistake about what it was. I've heard the K world can be grimy but I've never experienced it.
 
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HeadphonesandLSD said:
Did they just recently start looking for it in samples? This might have been there all along without anyone knowing it until someone thought to look.

Edit - It looks like it first popped up in some online samples in 2019. In 2020 it was in a couple of major cities and in a lot of online samples. This year it showed up in multiple online samples, some large cities on the west coast of America, the usual hubs in the EU, and looks to be spreading out from there. I'm guessing the place people were going for bulk changed.

I don't mess with K much so excuse my ignorance but how common is it to find it mixed with other substances? Every time I've been offered K there was no mistake about what it was. I've heard the K world can be grimy but I've never experienced it.
Click to expand...

I was wondering this as well, it seems this precursor has been in use a long time so would make sense that illicit samples have had it longer than we see. That said K has progressively gone from pharm product to illicit, which may mean increased levels of said impurity.

And same here, I’ve only ever gotten 1 cut batch that I could tell in my life. K and MDxx substances stay pretty standard around here.

-GC
 
G_Chem said:
I was wondering this as well, it seems this precursor has been in use a long time so would make sense that illicit samples have had it longer than we see. That said K has progressively gone from pharm product to illicit, which may mean increased levels of said impurity.
Click to expand...

If anyone had older batches to test that could be helpful. I don't know how responsive they are to email but it couldn't hurt to ask them about this anyway. I've heard people talk about the good old days of pharma-grade K but I never had access to it back then. I missed out on it so many times just by a few minutes or days. It doesn't come to town here very often. Even now it's hard to source and everyone knows to buy all you can while it's around.

And same here, I’ve only ever gotten 1 cut batch that I could tell in my life. K and MDxx substances stay pretty standard around here.
Click to expand...

This is my experience as well. People I know IRL that mess with these sorts of things put a lot more effort into their drug use than people using the traditional street drugs. By that I mean they test what they're using and look out for others. Lots of people will even insist you watch them test what they have. Even with MDxx substances I've only been screwed once which I suspect was meth or piperazine. Even that was unintentional. We all got scammed with a fake press. As you gain experience you just naturally end up around good people I think.
 
HeadphonesandLSD said:
If anyone had older batches to test that could be helpful. I don't know how responsive they are to email but it couldn't hurt to ask them about this anyway. I've heard people talk about the good old days of pharma-grade K but I never had access to it back then. I missed out on it so many times just by a few minutes or days. It doesn't come to town here very often. Even now it's hard to source and everyone knows to buy all you can while it's around.



This is my experience as well. People I know IRL that mess with these sorts of things put a lot more effort into their drug use than people using the traditional street drugs. By that I mean they test what they're using and look out for others. Lots of people will even insist you watch them test what they have. Even with MDxx substances I've only been screwed once which I suspect was meth or piperazine. Even that was unintentional. We all got scammed with a fake press. As you gain experience you just naturally end up around good people I think.
Click to expand...

Same here with MDMA too. It was late night couldn’t see them properly, I got too trusting of a particular press and didn’t test. Besides that I’ve never bought product that didn’t test legit. Very grateful for that, especially when I hear others struggle so hard.

I had pharm K that I’m aware of one time, it was my first. The product was good but hard to tell what’s what on the first couple tries.

Little story of craziness from my teen years.. I was 16 and had been doing cocaine with my then gf from a town over and her friend. The friend mentioned she was a vet tech and instantly I got giddy. I mentioned K and asked if she was familiar with it, she wasn’t but she said we could go look. High as hell on blow we enter the vet late at night and start scanning the monster shelves for it. Unfortunately no luck, I did see vials of morphine that I could have taken (she gave my friend some later) but didn’t have a habit then. I was just some ballsy teen wanting to try me some special k :)

The shit we used to do… lol.

-GC
 
G_Chem said:
This question is more important now than ever before. Looking at DrugsData nearly all the samples on the first page show what they call Ketamine Precursor A in varying quantities.

What is this precursor and even more importantly what could it potentially be doing to peoples health? If I need to contact Erowid folks I will but I’m hoping someone here knows.

-GC
Click to expand...

Funny enough I was searching the web for this answer and came across this thread. I was actually about to post this same question until I saw this. Did we ever figure out this structure?

Whatever it is, it does not easily separate from ketamine, I've tried a few different ways and it appears to share much of the physical properties. I think despite not being psychoactive it might be active peripherally (kind of feels like a pressor agent). This contaminant seems to be pervasive and its presence in ketamine seems to be associated with reports of side-effects (dizziness, a sensation of pressure in the head).

One would think it would be that so-called "ketamine hydroxylimine" precursor given the numerous places selling it as a mass spec reference standard, but who knows. How does one get a copy of drugsdata's GC/MS readouts? They only really publish them on their site when they need help identifying something.
 
Honestly I feel much of the K I’ve been doing has been contaminated with this, cuz last summer I got my hands on some Ketamine that’s possibly the best batch of racemic I’ve ever had. It’s got me questioning what impurities were in all those other racemic batches I’ve had before.

Pretty sure they’ll share GC/MS data if you ask, they’ve been very kind and helpful with me in the past when I’ve sought out additional information.

-GC
 
If the impurity was in fact the imine intermediate (I haven't seen any evidence that it actually is), it would be quite easy to separate from ketamine. Just hydrolyze it to the ketone and then A/B extract the ketamine.
 
G_Chem said:
Honestly I feel much of the K I’ve been doing has been contaminated with this
Click to expand...

What do you notice in terms of unique side-effects with these batches?

To me these batches feel very weak, more of a drunken feeling, and an ominous pressure in the head (as if you've put on a hat that is far too tight).
 
negrogesic said:
What do you notice in terms of unique side-effects with these batches?

To me these batches feel very weak, more of a drunken feeling, and an ominous pressure in the head (as if you've put on a hat that is far too tight).
Click to expand...

Pretty much that. Sometimes kind of headachey. The most noticeable difference is the positive effects, like I actually get good euphoria consistently off this newest batch. It’s also a tad more stimulating, the only batch I could see dancing for a bit on. I never felt like I “got” K until this recent batch.

Still lots of similarities though, dosage is pretty much the same. Duration the same. Everything is the same except less of rough body feel and more euphoria.

In fact my last time, it was so euphoric it felt like heroin. (I was trying to induce CYP3A4 with large amounts of capsaicin as well though, who knows what role that played.) For about 15-20min I had that “nothing can go wrong right now” feeling which im not sure K has done much for me in the past.

Always in the past K was more to help me sleep, for the long term antidepressant effects, and to jump back to normal after a roll or trip. Nothing more. This recent batch I find myself dipping into it a bit more than I’d like, not TOO much but definitely more rewarding and subsequently reinforcing.

I should mention it also looks noticeably more pure. It came as the big chunk but unlike past chunk this is composed of small uniform clear crystals not just a “rock.”

-GC
 
pure ketamine should be fucking stimulating, If i have been railing ket all night i am not sleeping till 6-7 am.

The ketamine should be totally be the feeling of total peace and bliss, The k hole is a pure escape from this world where all your problems in the world no longer exist.

Try get your hands on pure dutch sugar S-ISO and hole on that. Fuck those holes on s-iso are some wild wild shit.
 
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