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Stable Isotope Labeled Reference Standards

Stable isotope reference standards are essential tools in pharmaceutical research, particularly for use in bioanalytical studies, tracer experiments, and mass spectrometry-based quantification. Axios Research Inc. offers a range of deuterium 2H, 15N, and 13C-labeled drug substance reference standards with high isotopic and chemical purity. Each standard is characterized using mass spectrometry to confirm isotopic enrichment and structural integrity. Our labeling strategies are designed to prevent isotope exchange and are customized to meet specific client requirements, ensuring reliability and accuracy in analytical applications.

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Abacavir Abiraterone Abscisic Acid Acamprosate Aceclofenac Acedoben Acemetacin Acenocoumarol Acepromazine Acesulfame Potassium Acetamide Acetamidine Acetaminophen Acetazolamide Acetic Acid Acetochlor Acitretin Aclarubicin Aclonifen Acotiamide Acrivastine Acyclovir Adamantane Adapalene Adefovir Adenosine Adenosyl Adenosyl-L-Methionine Adipic Acid Afatinib Aflatoxin Agomelatine Ajoene Alachlor Alanine Albendazole Alcaftadine Alcohol Biomarker Aldosterone Alectinib Alendronic Acid Alfuzosin Aliskiren Alizapride Allicin Allopurinol Allosamidin Allura Red Ac Almorexant Almotriptan Alogliptin Alosetron Alverine Alvimopan Ambrisentan Ambroxol Amfenac Amg 900 Amidotrizoic Acid Amifampridine Amikacin Amiloride Aminocaproic Acid Aminolevulinic Acid Aminopyralid Amiodarone Amisulpride Amitriptyline Amlodipine Ammelide Amodiaquine Amoxicillin Ampa Amphotericin B Ampicillin Amprenavir Anagliptin Anagrelide Anastrozole Anidulafungin Anilazine Anisole Antipyrine Aoz Apadenoson Apalutamide Apigenin Apixaban Apomorphine Apremilast Aprepitant Arasertaconazole Arbutin Arecaidine Argatroban Arginine Arimoclomol Aripiprazole Artemether Artemisinin Arterolane Artesunate Ascorbic Ascorbic Acid Asenapine Asoprisnil Asoxime Aspartame Aspartic Acid Aspirin Astemizole Ataluren Atazanavir Atenolol Atomoxetine Atorvastatin Atovaquone Atrazine Avanafil Avibactam Avobenzone Axitinib Azacitidine Azacytidine Azafenidin Azathioprine Azd 4320 Azelaic Acid Azelastine Azelnidipine Azilsartan Azithromycin Azoxystrobin Aztreonam Baclofen Balsalazide Barnidipine Bazedoxifene Beclometasone Beclomethasone Bedaquiline Benazepril Bendamustine Bendroflumethiazide Benidipine Benperidol Benserazide Benzaldehyde Benzamide Benzene Benzethonium Benzetimide Benzimidazole Benznidazole Benzofuran Benzoic Acid Benzopyrene Benztropine Benzydamine Bepotastine Beraprost Bergapten Bestatin Betahistine Betamethasone Betaxolol Bethanechol Bexarotene Bezafibrate Bicalutamide Bictegravir Bifonazole Bilastine Bimatoprost Biopterin Biotin Biperiden Biphenyl Bisabolol Bisacodyl Bisoprolol Bisphenol A Blonanserin Borneol Bortezomib Boscalid Bosentan Bosutinib Brexpiprazole Brigatinib Brilacidin Brimonidine Brinzolamide Brivanib Brivaracetam Brivudine Brodifacoum Bromfenac Bromhexine Bromocriptine Bromopride Bromperidol Brompheniramine Bronopol Bucillamine Buclizine Budesonide Bufuralol Bumetanide Bupivacaine Bupropion Buserelin Buspirone Busulfan Butanoic Acid Butylhydroxytoluene Cabazitaxel Cabergoline Cabotegravir Cabozantinib Caffeine Calcifediol Calcipotriol Calcitriol Calcium Dobesilate Camphor Camptothecin Canagliflozin Candesartan Cangrelor Cannabidiol Capecitabine Capmatinib Capsaicin Captopril Carbamazepine Carbazochrome Carbendazim Carbidopa Carbimazole Carbinoxamine Carbocisteine Carbuterol Carebastine Carfilzomib Carglumic Acid Cariprazine Carisbamate Carisoprodol Carnitine Carvedilol Caspofungin Catechin Cefaclor Cefadroxil Cefathiamidine Cefazolin Cefbuperazone Cefcapene Cefdinir Cefditoren Cefepime Cefiderocol Cefixime Cefmetazole Cefoperazone Cefotaxime Cefoxitin Cefpodoxime Proxetil Cefprozil Cefradine Ceftaroline Fosamil Ceftazidime Ceftibuten Ceftiofur Ceftolozane Ceftriaxone Cefuroxime Celecoxib Cenicriviroc Cephalexin (Cefalexin Ceramide Cerdulatinib Ceritinib Cerivastatin Cetirizine Cevimeline Chenodeoxycholic Acid Chlorambucil Chloramphenicol Chlorguanide Chlorhexidine Chloridazon Chlormadinone Chloroantraniliprole Chlorogenic Acid Chloropropham Chloroquine Chloroxuron Chlorphenamine Chlorpromazine Chlorpyrifos Chlortalidone Chlortoluron Chlorzoxazone Cholecalciferol Cholesterol Cholic Acid Choline Cibenzoline Ciclesonide Ciclopirox Cilastatin Cilazapril Cilnidipine Cilostazol Cimaterol Cimetidine Cinacalcet Cinitapride Cinnamaldehyde Cinnamic Acid Cinnarizine Ciprofibrate Ciprofloxacin Cisapride Citalopram Citarinostat Citric Acid Citrinin Cladribine Clarithromycin Clascoterone Clavulanic Acid Clemizole Clenbuterol Clevidipine Clidinium Bromide Clindamycin Clobetasol Propionate Clocinizine Clofarabine Clofazimine Clofibric Acid Clomethiazole Clomiphene Clomipramine Clonidine Clonixin Clopamide Clophedianol Clopidogrel Clopyralid Clorsulon Clortalidone Closantel Clotrimazole Cloxacillin Clozapine Cobicistat Cobimetinib Codeine Coenzyme Colchicine Combretastatin A4 Conivaptan Cordycepin Coronaridine Corticosterone Cortisol Cortisone Coti-219 Cotinine Cotrimoxazole Coumarin Creatinine Crisaborole Crizotinib Cromoglycate Cromolyn Curcumin Cyamemazine Cyanazine Cyanocobalamin Cyclizine Cycloartenol Cyclobenzaprine Cycloguanil Cyclopentylamine Cyclophosphamide Cycloserine Cyclosporine Cypermethrin Cyprodinil Cyproheptadine Cyproterone Cyromazin Cysteamine Cysteine Cystine Cytarabine Cytidine Cytisine Cytosine Dabigatran Dabrafenib Dacarbazine Daclatasvir Daidzein Dalbavancin Dalotutumab Dantrolene Dapagliflozin Dapoxetine Dapsone Daptomycin Darifenacin Darolutamide Darunavir Dasabuvir Dasatinib Daunorubicin Decitabine Deferasirox Deferiprone Deferoxamine Degarelix Delafloxacin Deltamethrin Desipramine Desmopressin Desogestrel Desoximetasone Detomidine Deucravacitinib Dexamethasone Dextromethorphan Dextrorphan Diaminopentane Diazepam Diazinon Diazoxide Dibutyl Phthalate Dichlorphenamide Diclazuril Diclofenac Dicycloverine Didanosine Dienogest Diethyl Phthalate Diethylstilbestrol Difethialone Difloxacin Diflufenican Diflunisal Difluprednate Digoxin Dihydrotetrabenazine Diltiazem Dimefline Dimepranol Dimetridazole Dimoxystrobin Dinaciclib Diosmetin Diosmin Dioxin Diphenhydramine Diphenhyldramine Diphenidol Diphenylamine Diphosphate Dipyridamole Diquat Dirithromycin Distigmine Bromide Disulfiram Diuron Dobesilic Acid Dobutamine Docetaxel Docosahexaenoic Acid Docusate Dofetilide Dolasetron Dolutegravir Domperidone Donepezil Dopa Doripenem Dorzolamide Dothiepin Dovitinib Doxapram Doxazosin Doxepin Doxofylline Doxorubicin Doxycycline Doxylamine Dronedarone Droperidol Dropropizine Drospirenone Duloxetine Dutasteride Dydrogesterone Dyes E6005 Ebastine Econazole Edaravone Edoxaban Edrophonium Efavirenz Efinaconazole Eflornithine Eicosapentaenoic Acid Eletriptan Eliglustat Eltrombopag Eluxadoline Elvitegravir Emamectin Emedastine Emoxypine Empagliflozin Emtricitabine Enalapril Enoxacin Entacapone Entecavir Enzalutamide Epalrestat Eperisone Epiisopiloturine Epinastine Epinephrine Eplerenone Epoxiconazole Eprinomectin Eprosartan Equilin Erdosteine Ergocalciferol Ergocryptine Ergotamine Erlotinib Ertapenem Ertugliflozin Erythritol Erythromycin Esmolol Esterastin Estetrol Estradiol Estriol Estrone Ethacrynic Acid Ethambutol Ethane Ethephon Ethionamide Ethosuximide Etifoxine Etiocholanolone Etodolac Etofenamate Etonogestrel Etoposide Etoricoxib Etoxazole Etravirine Eugenol Everolimus Exemestane Exenatide Ezetimibe Faldaprevir Famciclovir Famotidine Fampridine Fapyguanine Farnesol Faropenem Fatty Acid Febuxostat Felbamate Felodipine Fenbendazole Fenfluramine Fenofibrate Fenoprop Fenoterol Fenprotalene Fenretinide Fenspiride Fesoterodine Fevipiprant Fexofenadine Fidarestat Fidaxomicin Filgotinib Fimasartan Finasteride Fingolimod Firocoxib Flavoxate Flecainide Flibanserin Flomoxef Florfenicol Fluanisone Fluconazole Flufenamic Acid Fluindione Flumatinib Flumazenil Flumequine Fluorofenidone Fluorouracil Fluoxetine Flupentixol Flupirtine Flurbiprofen Fluroxypyr Flutamide Fluticasone Fluvalinate Fluvastatin Fluvoxamine Folic Acid Folinic Acid Folpet Formoterol Fosfomycin Fosinopril Frovatriptan Fudosteine Fulvestrant Fumagillin Fumarate Furagin Furaltadone Furan Furazolidone Furfural Furosemide Fusidic Acid Gabapentin Gadopentetic Acid Gal-021 Galantamine Galaxolide Ganciclovir Gefitinib Geldanamycin Gemcitabine Gemfibrozil Gemifloxacin Genistein Gentian Violet Geosmin Gepirone Gestodene Ginsenoside Gisadenafil Glatiramer Gleevec Gliclazide Glimepiride Glipizide Gliquidone Glucosamine Glucose Glutamic Acid Glutamine Glutathione Glyburide Glyceric Acid Glycine Glycyrrhizic Acid Gnf179 Goserelin Granisetron Griseofulvin Guaifenesin Guaiol Guanfacine Guanine Halobetasol Haloperidol Hbi-800 Hederacoside Hematin Heptene Hesperetin Hesperidin Hexamidine Hexythiazox Hippuric Acid Histamine Humulene Huperzine Hydantoin Hydralazine Hydrazine Hydrochlorothiazide Hydroflumethiazide Hydroxyzine Hyoscine Butylbromide Hypericin Iacvita Ibandronate Ibipinabant Ibogaine Ibrutinib Ibudilast Ibuprofen Ibutilide Icariin Icrt14 Idarubicin Idebenone Idelalisib Iguratimod Ilaprazole Iloperidone Imatinib Imazethapyr Imidacloprid Imidafenacin Imidapril Imidazole Imipenem Imipramine Imiquimod Imrecoxib Indacaterol Indapamide Indinavir Indole Indomethacin Indoramine Ingavirin Ingenol Inosine Iohexol Iopamidol Iothalamate Ioxitalamic Acid Ipidacrine Ipragliflozin Ipratropium Iprodione Iproniazid Ipronidazole Irbesartan Irinotecan Iron Isavuconazole Isoniazid Isoproturon Isosorbide Isradipine Istradefylline Itopride Itraconazole Ivabradine Ivacaftor Ivermectin Ixazomib Jasmonic Acid Jn7-69 JPH-203 Ketamine Ketoconazole Ketoprofen Ketorolac Ketotifen Kifunensine Kl140061A Kukoamine B Kynurenic Acid Kynurenine Labetalol Lacidipine Lacosamide Lactic Acid Lafutidine Lamivudine Lamotrigine Lansoprazole Lanthionine Lapatinib Laropiprant Lasofoxifene Lauric Acid Ledipasvir Leflunomide Lenalidomide Lenvatinib Lercanidipine Letermovir Letrozole Leucine Leuprolide Levamisole Levetiracetam Levocabastine Levofloxacin Levomefolate Levomepromazine Levonorgestrel Levosulpiride Levothyroxine Lidocaine Lifitegrast Limaprost Limonene Linaclotide Linagliptin Lincomycin Linezolid Linoleic Acid Linolenic Acid Lipstatin Liraglutide Lisinopril Lm11A 31 Lodoxamide Lofexidine Lomerizine Lomitapide Lomustine Lonafarnib Loperamide Lopinavir Loratadine Lorcaserin Lorlatinib Lornoxicam Losartan Loteprednol Lovastatin Loxapine Loxoprofen Lubiprostone Lufenuron Lumacaftor Lumateperone Lumefantrine Luminol Lurasidone Luxabendazole Lysine Macitentan Magnoflorine Malachite Green Maltol Manidipine Maprotiline Maraviroc Marbofloxacin Marizomib Maropitant Maytansine Mcc950 Mebendazole Mebeverine Mecillinam Meclizine Meclofenoxate Mecoprop Medroxyprogesterone Mefenamic Acid Megestrol Melatein Melatonin Melitracen Meloxicam Melperone Melphalan Memantine Menthol Meperidine Mephenytoin Mepivacaine Meptazinol Mercaptopurine Meropenem Mesalamine Mesopram Metamizole Metaxalone Metazachlor Metformin Methazolamide Methenamine Methicillin Methimazole Methiocarb Methocarbamol Methotrexate Methotrimeprazine Methoxsalen Methylene Blue Methylergonovine Methylphenylpyridinium Metirosine Metoclopramide Metolachlor Metolazone Metopimazine Metoprolol Metribuzin Metronidazole Metyrosine Mevalonic Acid Mexiletine Mhbma Mianserin Micafungin Miconazole Midodrine Mifepristone Miglitol Miglustat Mildronate Milnacipran Milrinone Miltefosine Minocycline Minodronic Acid Minoxidil Mirabegron Mirodenafil Mirtazapine Misc Misoprostol Mitiglinide Mitomycin Mitotane Mitoxantrone Mitragynine Mizolastine Moclobemide Modafinil Moexipril Molindone Mometasone Monepantel Monic Acid Montelukast Morantel Mosapride Moxidectin Moxifloxacin Moxonidine Mozavaptan Mucopolysaccharidosis Substrates Mupirocin Mycophenolic Acid Myrcene Nabumetone Nadolol Nafcillin Nafronyl Naftazone Naftifine Naftopidil Nalmefene Naloxegol Naloxone Naltrexone Naphazoline Naphthalene Naphthol Napropamid Naproxen Naratriptan Narirutin Nateglinide Nebivolol Nefazodone Nefopam Nelfinavir Neopterin Neostigmine Neotame Nepafenac Neptinib Neramexane Netupitant Nevirapine Nicarbazin Nicardipine Nicergoline Niclosamide Nicorandil Nicotine Nifedipine Nifekalant Nifuroxazide Nifurtimox Nilotinib Nilutamide Nilvadipine Nimesulide Nimodipine Nimorazole Nintedanib Nisoldipine Nitisinone Nitrendipine Nitroxynil Nizatidine Nnal Norethindrone Norfloxacin Norgestimate Norgestrel Normetanephrine Northiadene Nortriptyline Noscapine Oclacitinib Octinoxate Octocrylene Octopamine Octreotide Octyltin Olanzapine Olaparib Oleic Acid Olmesartan Olopatadine Olsalazine Sodium Omacetaxine Mepesuccinate Ombitasvir Omeprazole Ondansetron Opicapone Opipramol Oprozomib Orlistat Ormeloxifene (Centchroman Ornidazole Orotic Acid Orphenadrine Oseltamivir Osimertinib Ospemifene Otilonium Bromide Oxaliplatin Oxamyl Oxaprozin Oxcarbazepine Oxfendazole Oxibendazole Oxiracetam Oxonic Acid Oxprenolol Oxybutynin Oxyclozanide Oxycodone Oxyphenbutazone Ozanimod Paclitaxel Palbociclib Palmitoleic Acid Palonosetron Palovarotene Pamabrom Pamapimod Panobinostat Panthenol Pantoprazole Papaverine Paraben Paraquat Paraxanthine Parbendazole Paricalcitol Paritaprevir Paroxetine Pasireotide Pazopanib Pazufloxacin Pb-141 Pemetrexed Penbutolol Penciclovir Pendimethalin Penicillamine Penicillin Pentanoic Acid Pentostatin Pentoxifylline Pentoxyverine Peptide Perampanel Perfluoro Acid Perfluorodecanoic acid Perfluorohexanoic Acid Perfluorooctanoic Acid Perindopril Perphenazine Phenazopyridine Phenelzine Phenindione Pheniramine Phenol Phenoxybenzamine Phenoxyethanol Phenprocoumon Phentolamine Phenyl Acetate PhenylAcetaldehyde Phenylbutazone Phenylbutyrate Phenylephrine Phenyramidol Phenytoin Phloroglucinol Phosphate Phosphonic Acid Phoxim Phthalate Physostigmine Picosulfate Sodium Pilocarpine Pimavanserin Pimobendan Pimozide Pinacolone Pinaverium Bromide Pinene Pioglitazone Pipamperone Piperacillin Piperaquine Piperonyl Butoxide Piracetam Piragrel Pirfenidone Piribedil Piroxicam Pitavastatin Pitofenone Pixantrone Pleconaril Plerixafor Podophyllotoxin Polidocanol Pomalidomide Ponatinib Porphobilinogen Posaconazole Pp-2206 Pralatrexate Pramipexole Pramoxine Pranlukast Prasugrel Pravastatin Praziquantel Prazosin Prednisolone Prednisone Pregabalin Pregnane Pridinol Prilocaine Primidone Pristinamycin Probenecid Probucol Prochlorperazine Progesterone Promazine Promethazine Propafenone Propane Propanediol Propanil Propanoic Acid Propantheline Bromide Propargyl Alcohol Propiconazole Propiomazine Propiverine Propofol Propoxur Propranolol Propylthiouracil Prostaglandin Prothionamide Protriptyline Prucalopride P-Sulfanilylphenol Pterin Purine Pyrazinamide Pyrazinoic Acid Pyrene Pyridinoline Pyridostigmine Bromide Pyridoxine Pyrilamine Pyrimethamine Pyrroline Pyruvic Acid Quercetin Quetiapine Quinagolide Quinapril Quinidine Quinine Quinoxyfen Rabeprazole Racecadotril Ractopamine Radotinib Rafoxanide Raloxifene Raltegravir Ramelteon Ramipril Ramosetron Ranelic Acid Ranitidine Ranolazine Rapamycin Rasagiline Rebamipide Reboxetine Regorafenib Relugolix Remogliflozin Repaglinide Resiniferatoxin Resiquimod Resorufin Resveratrol Retigabine (Ezogabine Retinoic Acid Retinol Revaprazan Rhein Ribavirin Ribociclib Riboflavin Rifabutin Rifampicin Rifapentine Rifaximin Rilpivirine Riluzole Rimantadine Rimegepant Rimonabant Rimsulfuron Riociguat Risedronic Acid Risperidone Ritodrine Ritonavir Rivaroxaban Rivastigmine Rizatriptan Rizatriptan D3 Rofecoxib Roflumilast Ronidazole Ropinirole Ropivacaine Rosiglitazone Rosuvastatin Rutin Ruxolitinib Saccharin Saccharopine Sacubitril Safinamide Salbutamol Salicylic Acid Salmeterol Saquinavir Sarafloxacin Sarpogrelate Saxagliptin Sch 209702 Scopolamine Selegiline Selenomethionine Selexipag Semaglutide Sepiapterin Serine Serotonin Sertraline Sevoflurane Sibutramine Sildenafil Silodosin Silybin Simeprevir Simvastatin Siponimod Sitafloxacin Sitagliptin Sitostanol Sodium Cyclamate Sofosbuvir Solabegron Solifenacin Sorafenib Sotalol Sotorasib Sparsentan Spermine Spiramycin Spirotetramat Squalene Stable Isotope Stable Isotopes Stanolone Stavudine Stigmasterol Stilbestrol Stiripentol Strigolactones Sucralose Sucrose Sudan Sulbactam Sulbutiamine Sulfachlorpyridazine Sulfadiazine Sulfadimethoxine Sulfadimidine Sulfadoxine Sulfamethizole Sulfamethoxazole Sulfasalazine Sulfathiazole Sulindac Sumatriptan Sunitinib Suvorexant Synhexyl Tacrine Tacrolimus Tadalafil Talaporfin Tamoxifen Tamsulosin Tartrazine Tasimelteon Tavaborole Tazarotene Tazemetostat Tazobactam Tebipenem Pivoxil Tebuconazole Tecarfarin Tedizolid Teflubenzuron Tegafur Telaprevir Telbivudine Telmisartan Telotristat Temozolomide Teneligliptin Tenofovir Tenofovir Alafenamide Tenonitrozole Terazosin Terbinafine Terbutaline Terbuthylazine Terizidone Terphenyl Tesofensine Tetrabenazine Tetracaine Tetrachlorophenol Tetracycline Tetrahydroquinazoline Tetramisole Tezosentan Tg-02 Thalidomide Theophylline Thiabendazole Thiamine Thiamphenicol Thiazole Thiocolchicoside Thioctic Acid Thioquinapiperifil Thioridazine Thiorphan Thiothixene Thiouric Acid Thiq Thromboxane Thyroxine Tiagabine Tiamulin Tianeptine Tiaprofenic Acid Ticagrelor Ticlopidine Tigecycline Tilmicosin Timolol Tiopronin Tiotropium Bromide Tipelukast Tipiracil Tipranavir Tirofiban Tizanidine Tizoxanide Tofacitinib Tolbutamide Tolcapone Tolfenamic Acid Tolnaftate Tolperisone Tolterodine Toluene Tolvaptan Topiramate Topotecan Toremifene Torsemide Tramadol Trametinib Trandolapril Tranexamic Acid Tranylcypromine Travoprost Trazodone Trehalose Trelagliptin Treprostinil Tretinoin Triallat Triamcinolone Triamterene Tricirbine Triclabendazole Triclosan Trientine Trifarotene Trifluoperazine Trifluorothymine Trifluridine Triflusal Triheptanoin Trimebutine Trimegestone Trimeprazine Trimetazidine Trimethoprim Triprolidine Triptorelin Troglitazone Tropatepine Tropisetron Trospium Tryptamine Tryptophan Tryptophol Tucatinib Tylosin Tyramine Tyrosine Udenafil Ulifloxacin Ulipristal Umbelliferone Undecylenic Acid Upadacitinib Uracil Urapidil Urea Uric Acid Uridine Urolithin Ursodiol Vaborbactam Valdecoxib Valnemulin Valproic Acid Valsartan Vancomycin Vandetanib Vapendavir Vardenafil Varenicline Vasopressin Vecaburtinib Velpatasvir Vemurafenib Venetoclax Venlafaxine Verapamil Veratric Acid Vernakalant Vicagrel Vigabatrin Vilanterol Vilazodone Vildagliptin Viloxazine Vinblastine Vinpocetine Vismodegib Visomitin Vitamin Vitamin B5 Vitamin D3 Vitamin E Vitamin K Vitamin K1 Vitamin K2 Voclosporin Voglibose Vorapaxar Voriconazole Vorinostat Vortioxetine Vp 14637 Warfarin Xanomeline Xanthine Xanthoanthrafil Xylenol Xylulose Yohimbine Yonkenafil Zafirlukast Zaleplon Zaltoprofen Zanamivir Zanubrutinib Zeatin Zephirol Zidovudine Zileuton Zilpaterol Ziprasidone Zk 159222 Zofenopril Zolmitriptan Zonisamide Zopiclone Zotarolimus

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