RCB Online


(66 customer reviews)


Buy clonazolam research chemicals online!
Guaranteed delivery worldwide!

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clonazolam research chemical Technical Information:
Formal Name:6-(2-chlorophenyl)-1-methyl-8-nitro-4H-[1,2,4]triazolo[4,3-a][1,4]benzodiazepine
CAS Number: 33887-02-4
Synonyms: Clonitrazolam
Molecular Formula:C17H12ClN5O2
Formula Weight:353.8
Formulation:A neat solid

Clonazolam (also known as Clonitrazolam) is a novel depressant substance of the benzodiazepine chemical class which produces anxiolytic, sedative, muscle relaxant, and amnesic effects when administered. This compound is a novel research chemical derivative of the FDA-approved drugs clonazepam (Klonopin, Rivitrol) and alprazolam (Xanax). Clonazolam is reported to be roughly 2.5x as potent as alprazolam.

The synthesis of clonazolam was first reported in 1971. It was described as the most active compound in the series tested. Clonazolam is reputed to be highly potent, and concerns have been raised that it and flubromazolam may pose comparatively higher risks than other designer benzodiazepines due to their ability to produce strong sedation and amnesia at oral doses as low as 0.5 mg, or 500 micrograms (ug). It is reported to have a medium-length onset of action (20 – 60 minutes).

All chemicals sold from rcbestsell.com will be only applied for scientific research purpose!


100g, 10g, 1g, 25g, 2g, 50g, 5g

66 reviews for Clonazolam

  1. toddlavigne04

    Clonazolam appears to be of phenomenal purity and looks and performs exactly as expected in testing.Highly recommended!

  2. Connr Fychan

    great production

  3. papertiger3mc

    I just received product today. Your shipping was fast and customer service was excellent! Purity test is great!!!

  4. funning

    Research went great! Very pure and great prices! Thanks!

  5. jdennisnorth86

    delivery quick and fast! you want top notch purity this is is the website! RCBESTSELLS is unbeatable! My test showed that I’ve never seen nor had anything like this to test at my lab. RCB Clonazolam is the purest Form. 🙂 will be working with them for a while!

  6. jdennisnorth86

    Your not gonna test anything better then RCB Clonazolam period. Fast delivery prices are super fair. Can always count on them! Great Customer Sevice!

  7. djdelusions.5256

    Was so shocked made my feet drop, when test the purity of this. Fast delivery and by far best Legal RC Company

  8. billmurry100

    To be honest this Clonazolam was highest quality I ever met! Delivered in very discreet packaging. Better price and customer service than anywhere else. highly recommended!

  9. carlwittenbrink

    Habent had a chance to test the product yet but it looks absolutely perfect I was shocked at arrived in 8 days to the west coast of the US they were great with communication I’m not a professional when it comes to dealing with Bitcoin and they were helpful and prompt packaging was great and discreet and arrived here quickly like I said. I’m actually lucky it arrived here at all not RC best sells fault at all but my mail delivery guy delivered it to the wrong mailbox! luckily an honest person saw a package that wasn’t theirs and dropped it off to me at my house who knew there were still honest people in the world! Anyway I will definitely be ordering again the sample was a nice touch and appreciated price was great and I didn’t even realize you could get a discount for using Bitcoin so I didn’t use it lol. thank God there’s a good reliable vendor out there for clon!

  10. defaultRC

    This came rather quickly considering it was from China, but it was well worth it. The Clonazolam is top knotch.

  11. ahhousing

    Excellent CS. Very Responsive. Only thing is I’ve never seen crystalline Clonazolam. I’ve seen white flour texture and they most common yellow but this almost looks like Etizolam. Doesn’t stick.
    This is a great service though if you get by customs. Took 10 days total!

  12. Sq33tp0is0n

    My first package was lost at customs, and they received shipped and order recived in 7 days to the usa. Amazing service with great prices. Am placing my next order now!

  13. justm2012

    The product is of the most purist quality.Other pics in the review section show what I received and I can say I am pleased. RCB FTW!!

  14. SuperAnxietyMan (verified owner)

    Delivery came the day I was about to run out of my research supply too. You guys are life savers! I haven’t tested the product for my Daoistic-driven scientific interest yet but the packaging was very safe, both for the customer and the postal workers (for those that fear that these research compounds may leak out of the package and come into contact with their skin — it won’t, trust me). The stealth is very excellent and the order came when expected as stated by the tracking. Thank you so much comrades! We really need to cut down on the authoritarian bullshit that the governments of the world are imposing on peaceful people. It’s bad for those both in power and those without. We all need to let go of our egos and let people do as they please so as long as they maintain peaceful relations with others.

  15. deranger (verified owner)

    RCBestSell is number one in the game right now. Absolutely pure, amazing stealth, fantastic results. I won’t be using any other supplier. Please stay online for as long as possible, RCBestSell! You’re among the best in the 10 years I’ve have experience in this scene.

    Second order queued up!

  16. Keith (verified owner)

    Justabout perfect from quality, to packaging & integrity of the product. Nobody does it better!

  17. Stan65

    Excellent product and extremely fast shipping

  18. ResearchAtla

    THE FREE a sample proved POTENT. Keep the lab equipment safe abd unplugged once in awhile this stuff is nooo joke. 5 stars!!

  19. Pin3appl3 (verified owner)

    Great product, amazing stealth , and very communicative staff

  20. Daniel

    Excellent service and quality material.

  21. Sector9

    First time buyer on the site and very excited to get some of this Clam. The past reviews make it sound like the quality is pretty good. I will update once I receive! Thanks!

  22. Johnnysmith11431 (verified owner)

    Very high quality product, will purchase more soon!!!!!

  23. Sunshinehippy (verified owner)

    So pack came in about two weeks at to be honest at first I was a lil weary because I’ve always been used to the yellow flour texture kind and this just had a tint of yellow to it and was very small crystalline but come to my surprise it tested to be some of the best clam I’ve ever had and I’ve tried just about every vendor out there some still around still some not they packing is amazing they hook it up give free samples discounts shit what more can you ask for and they carry some of the most important rc’s Out there right now at a good price by far only vendor I will deal with unless it’s something I need he doesn’t have but I definetly recommend they get a 10/10 in my book for every catigory….!!!! Love you RCB!

  24. sundaramedia1

    Hi guys sounds like this place is legit, in going to order some clam as soon as my lab has funding.

  25. A happy customer. (verified owner)

    Best on the market period.

  26. Whitecheddar098

    Got this as a sample, yes it’s not yellow like some think but I’ve had White C-lam before and it was A+. So the sample order I got and is super!

  27. Donal***

    Took exactly 3 weeks for order to arrive but it completely knocked my socks off so despite some uneasiness that it was going to be seized, it landed safely at my door and the price and purity absolutely made it worth the wait. Best RC source on the planet right now

  28. Josh (verified owner)

    Package finally arrived. Although it did take about 2 months and some technical issues with the shipping, I am very pleased with the customer service and the product. RCB was extremely professional with great communication and getting the packaged reshipped. Thanks so much will definitely be ordering again hopefully I’ll have better luck with the shipping, but considering its from China 2 months is understandable.

  29. Sloppy joe (verified owner)

    Great product exactly as described, quialty is above and beyond, shipping took only 11 days to USA, will defy be ordering again very soon, RCB is the best, I hope they stick around for a long time!! If u are scepitcial….don’t be, they are 100% legit… safe researching everyone!!

  30. Dddm@protonmail.com (verified owner)

    5 STARS! If you are in the US and thinking about trying one of our domestic suppliers such as NOM4D1C, don’t bother. Most of those guys are just scammers. Just us RCB ONLINE and save your money. Product received was perfect and took 13 days to get here. I’ve never had a bad experience with RCB ONLINE. Customs is the only issue you will likely ever have. But they will reship, and now for free! Seriously, DO NOT mess with US domestic suppliers unless you know them. They will take your money and send you nothing. RCB ONLINE will not. Just be patient and wait.

  31. Neurolectric

    Excellent quality, mine initially was stopped but the reshipment came quickly and easily. RCB is the best!

  32. woman (verified owner)

    Took about 40 days for it show up to the east coast but the product came and very satisfied with it. even though they did say 15 days.

  33. Devildog Research (verified owner)

    Highest purity anywhere along with unbeatable prices !! Could not believe how pure it was !! Love RCB and they seem to really hook up their loyal repeat customers

  34. Flydwg1487 (verified owner)

    Wow shipping is fast. Good stealth packaging and research continues to prove quality

  35. Pin3appl3 (verified owner)

    Bought multiple times, was skeptical first time. But the communication is unparalleled, and the product is top notch, RCB dont mess around,.

  36. Complecks99

    Amazingly high quality, I love it wyen the pure crystals i get instead of the crystals being crushed makes for waaaay easier research! Super potent use lab protocol/gloves and eyewear when researching!

  37. Cire0111 (verified owner)

    Excellent quality accidentally ordered a sample and order was too large so I may have been best..tOP QUALITY

  38. Jayzeezee

    When I came across “RC Best Sell” during a Google search for a new source for CLONAZOLAM – my current main focus in my research, I thought the name and the prices and how you used to be able to pay with PayPal was way too good to be true. It took me months to convince myself to send the crypto and see if I would receive any of the products I ordered – being of any quality at all- or if I would even receive any products. Within a few hours of paying my crypto I got my confirmation email, and a personal email saying not to worry that I had not quite sent enough money to cover the crypto fees (Aerospace and Chemical Engineer here, still never get it right). I didn’t even have time to get worried enough about my orde to check my tracking number before my package of what was labeled Clam, 2FDCK, and FLam arrived 11 days after I paid an insufficient amount of money for my order. So being who I am I immediately jump to the conclusion that all of these powders are fake or mislabeled because the CLONAZOLAM was pure white and more crystalline than all other 15 times I’ve ordered grams of Clam. Clam is usually canary yellow. Having a background in chemistry I do realize that different synthesis procedures among other things can effect things such as the color of your final product. I am analyzing and researching now but I truly believe this clonazolam to be white because it is so pure/ may have used different synth which does not leave behind the yellow that I now believe to be an impurity in 90% of the world’s Clonazolam. I believe this because of the ease of solubility in either ethanol or PG was markedly easier, suggesting a more pure product. Also it makes absolutely no sense that the absence of the yellow tint is due to an impurity. Could be incomplete synthesis, but no. This is the finest Clonazolam that can be found on the planet. It leaves my research equipment noticebly less corroded, and my lab rats experience very little body load and bad side effects that are generally due to impurities. This Clam is 98%+, for pennies, in days, guaranteed. We must all do everything we can to make sure RCB stays around and functioning to this level. I had never researched 2FDCK before so I cannot compare, but can say that it is an absolutely amazing product that I also would believe to be 98%+. The Flubro….. Bro this is the gnarliest benzo on the planet, prepare your equipment and start research with rats at doses you would think you would give to something the size of an Ant. The Flubro is 98%+.

    Thank you guys so much for what you do and allowing us to entertain ourselves in the way that we choose, and that we enjoy, like human beings should be able to. Infinite gratitude to your practice, I will be ordering tonight or tomorrow and trying some new chems – because I trust these guys 100% to have the correct compound in the correct amount and get it in your hands, if they have it listed on this site.

    I can’t say enough; I’m blown away. WHITE CLONAZOLAM!!!!!

  39. simonphoinex

    I’m glad back in business. Looking forward to receive first order. Great customer service

  40. Roland (verified owner)

    Be very careful!!!!! This is the best of the best! Use care when handling. .1-.2mg is enough any thing more and ….. what happen?! Almost was fired due to lack of knowledge of how potent while undergoing research.

  41. N

    About to order again first pack landed so there legit ATM purity to par with other clam ordered but not crystal then powdery packaging was annoying but don’t mind see its great time on shipping a bit long almost to reship but they they responded to emails within 48hrs so can’t complain

  42. deranger (verified owner)

    RCB never fails to deliver a high quality product with excellent stealth. A great supplier!

  43. L.W B (verified owner)

    Second time ordering from them and once again delivery was seamless (took about two weeks, no issue with customs despite going through a notoriously difficult ISC, great stealth to boot), and the product more than passes muster as high purity. I’ll always advocate for RCB! Thanks guys.

  44. Lily Batman (verified owner)

    Quality product and service as usual. Our notoriously difficult customs facility took no time at all, and the compound purity more than passes muster. They also correspond with you very politely and quickly, so overall I’m very satisfied and will be a return customer. Thanks!

  45. Mcalas

    Very potent. Will make testt animals get lost in thought but still active to go through the day, of course with no recollection of what happened. Would be nice to mix with another benzo to even the heaviness and lethargy. Overall best product and company to deal with.

  46. Eman (verified owner)

    Very helpful customer service, pure product, and great stealth.

  47. Vinny Feyjoo

    Great product long time to ship but it came as promised and def purity is there. Great for research. Reputable company. I trust them and will be ordering again just waiting 9n response they will send you 20 percent off coupons and free samples if you leave a review on sights or blogs

  48. Jordan gerioux (verified owner)

    Order #2 everything is exactly as expected! Thank you

  49. Sura007 (verified owner)

    Took about 2 weeks to arrive but the stealth was great. About the potency I would say this could be better, at least I thought this because this is from china
    5/5 everything else but 4/5 for potency.
    Afterall, no complaints

  50. Bvghgb33 (verified owner)

    Excellent Product! Great delivery.

  51. J. Wick (verified owner)

    RCB always comes through for me and it has benefitted my research greatly. Top quality product, excellent customer service, good delivery time considering everything that is going on. I have refered many of my fellow researchers and will continue to do so! Best Clonazolam I have ever studied!

  52. mcleanroach@gmail.com (verified owner)

    First time ordering from this vendor. I was very nervous, but everything came through and even faster than expected, about 2 weeks. They put the free sample in with the order after I weighed it. Discrete packaging. It’s difficult to track packages out of country, and expect a time period of no updates before it gets to customs, but it IS coming. Every time I emailed with questions from the website I got a quick and polite response giving reassurance on the status of my order. The product was pure and well worth it. I’m so glad to have found a reliable vendor and will continue to use them in the future.

  53. Budamaboy

    Third time ordering I have to say I am impressed with their customer service as always package took a long time to arrive due to being in the middle of the Covid crisis I waited almost two months before asking to re ship and they did so immediately and I had a tracking number immediately I was somewhat less enthused with quality this time around the flualp I expected to test well but it seems weaker than alp which by all research it should not over all I think them the only trustable clearnet site I would order from still and would give the potency a 4 of 5

  54. Jordan gerioux (verified owner)

    4th or 5th order came in stuck in customs but they reshipped and it showed up incredible fast. Product is always exactly as described.

  55. John Doe

    Very fast delivery Honest Company everything that’s going on they’re still on top of their game

  56. John Doe

    Excellent stuff definitely worth the wait

  57. Jack

    These guys rock five stars all the way I’ve made five orders of all of their different products they are all top-notch you won’t find any better anywhere the customer service is very sweet and polite and very responsive and I can’t say enough good things about them wish they would get different stimulants soon or some real alaprazolam!!!! Please pretty please

  58. Cory Williams

    Excellent product, excellent timing as well. My package arrived awesomely early. Keep it up!

  59. Donnieda (verified owner)

    Clonazolam came fast and very potent. Cant wait to order again!

  60. aster-caster (verified owner)

    Customer service is pretty great, however a downside: New white c-azolam seems 30% less potent than the yellow varietal, though this may be a batch issue. The same is true of F-alp.
    On the other hand, while the order did not ship initially, they made it right by resending, even after 3 months!

  61. HighSuspekt (verified owner)

    There Clonazolam is absolutely the best very potent communication is always great and on one order they sent me the wrong chem and they told me they would add the one i ordered free on my next purchase cant say enough about them,, PS could use more variety

  62. HighSuspekt (verified owner)

    i have made a review on this product and its absolutely great/strong, but to all the people doing reviews has anyone sent a sample to Drugsdata dot org for conformation since no paper work gm/ms or any kind is packaged with orders that would be a nice thing if they could do that, was just curious someone has to have, that said be careful stuff is potent currently waiting for it to be restocked 🙂

  63. The tuna

    Waiting on restock but hoping it’s sooner then later and hoping it’s the better clam


    Rcb hands down the best true to their word and great customer service with like they say basically pure quality 99% but highsuspekt it would be cool if u got a gm/ms machine but do you know how expensive try are?!? Very so it would make bad business sense to give those with your order ya know but if they somehow could it’d be awesome for sure!!! But ya love RCB always my permanent supplier fs

  65. Mark Dudley

    Clon was unreal when i ordered it in late 2019. Recently placed an order but clon was out of stock..Still very please with what i did get. They have really stepped up the shipping speed and stealth..LOVE u guys, and im Dying for that Clonazolam re-stock.. Please dont try to become too big and keep this for those in the know.. RCB is a wonderful company, No BS, EZ checkout..KEEP IT GOING GUYS!!

  66. Loyal Customer (verified owner)

    5 star customer service 5 star products. This was my 6th or 7th order from these guys and this time it got lost or seized. Either way at the 30 day mark they sent a replacement package and two weeks later at my door. I’ve tried every product they offer and they all have been 💯. With so many scammers out there these guys are the place I will send my money every single time. I am a totally loyal customer for life! Thanks RCB keep up the good work. Just a suggestion though… maybe make tracking the order easier by putting the tracking number on the order page of “my account” when it is shipped it would be less headache for you guys as well! 😁

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