Forensic Reference Standards

Forensic reference standards

Clearsynth provides a wide selection of reference standards for numerous drugs of abuse, their metabolites and stable labeled internal standards including methamphetamine, amphetamine, cocaine and its analogs, cannabinoids, opiates and synthetic analgesics, hallucinogens, and designer drugs.

These solutions are suitable for LC or GC applications in analysis of urine or blood samples for forensic and toxicology investigations, pain prescription monitoring, calibrator and control preparation, or isotope dilution methods. Clearsynth also offers a full line of ethanol standards traceable to SI through NIST and suitable for a variety of purposes including blood alcohol testing.

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CS-W-00131 Acepromazine D6 maleate Stable Isotopes
CS-T-46981 Acetaminophen D4 Stable Isotopes
CS-O-06380 Adapalene D3 Stable Isotopes
CS-W-00083 Albendazole sulfone D3 Stable Isotopes
CS-O-02843 Albendazole Sulfoxide D3 Stable Isotopes
CS-T-01770 Althiazide API Standards
CS-EG-00065 Altizide (Y0000606) EP Standards
CS-ER-02312 Altizide(Secondary Standards traceble to EP) Secondary Standards
CS-T-01777 Alvimopan API Standards
CS-O-00769 Alvimopan D5 Stable Isotopes
CS-L-00037 Amcinonide API Standards
CS-W-00097 Aminotriclabendazole Hydrochloride Pesticides
CS-T-48283 Antazoline Phosphate Intermediates
CS-W-00312 Azaperone D4 Stable Isotopes
CS-T-48550 Bamethane hemisulfate salt API Standards
CS-W-00266 Baquiloprim D6 Stable Isotopes
CS-ED-00041 Benzoylecgonine API Standards
CS-R-00520 BENZOYLECGONINE D3 Stable Isotopes
CS-T-68314 Brombuterol Hydrochloride Intermediates
CS-O-06190 Bromopride API Standards
CS-ED-00979 Buprenorphine hydrochloride API Standards
CS-EB-00322 Buprenorphine Hydrochloride CIII (R00770) USP Standards
CS-ER-00320 Buprenorphine Hydrochloride CIII(Secondary Standards traceble to USP) Secondary Standards
CS-ZE-16874 Butacaine Fine Chemicals
CS-T-09826 Butyl Paraben* Stable Isotopes
CS-CX-00195 Butylone hydrochloride Intermediates
CS-T-69830 Caffeine-13C3 Stable Isotopes
CS-W-00235 Cambendazole D7 Stable Isotopes
CS-T-69150 Camylofine API Standards
CS-R-00525 Cannabinol API Standards
CS-ZH-33583 Cathinone Other
CS-ED-00043 Cathinone API Standards
CS-T-72273 Chloropyramine Hydrochloride API Standards
CS-O-03087 Chlorpromazine D6 Hydrochloride Stable Isotopes
CS-ER-02618 Chlortalidone for peak identification(Secondary Standards traceble to EP) Secondary Standards
CS-EG-00944 Chlortalidone for system suitability (Y0002129) Primary Standards
CS-ER-02617 Chlortalidone(Secondary Standards traceble to EP) Secondary Standards
CS-O-00496 Chlorthalidone API Standards
CS-T-71713 Cimbuterol Intermediates
CS-O-16225 Ciprofloxacin D8 Hydrochloride Stable Isotopes
CS-O-40055 Clenproperol-d7 Stable Isotopes
CS-T-89979 Clofoctol Intermediates
CS-EG-02999 Codeine - * narc (Y0000722) EP Standards
CS-ZH-01715 Codeine monohydrate Other
CS-W-00042 Colterol D9 acetate Stable Isotopes
CS-ER-02701 Cyclopentolate for system suitability(Secondary Standards traceble to EP) Secondary Standards
CS-O-11621 Cyclopentolate Hydrochloride API Standards
CS-W-00078 Cyclopentylalbendazole Pesticide Standards
CS-W-00080 Cyclopentylalbendazole sulfone Pesticide Standards
CS-W-00079 Cyclopentylalbendazole sulfoxide Pesticide Standards
CS-ZH-11507 D-Amphetamine-d3 hemisulfate Stable Isotopes
CS-W-00107 Decoquinate D5 Stable Isotopes
CS-ZH-18088 delta(9)-Tetrahydrocannabinolic acid Fine Chemicals
CS-T-57080 Desmethyl Diazepam-d5 Stable Isotopes
CS-EB-00621 Desoximetasone (R012H0) USP Standards
CS-ER-00613 Desoximetasone(Secondary Standards traceble to USP) Secondary Standards
CS-W-00282 Desoxycarbadox API Standards
CS-W-00283 Desoxycarbadox D3 Stable Isotopes
CS-T-52305 Desoxymetasone API Standards
CS-DH-00003 Dextromethorphan Impurity A hydrochloride Impurities
CS-T-52836 Diflorasone Diacetate API Standards
CS-O-15773 Difloxacin D3 Hydrochloride Stable Isotopes
CS-T-52944 Digoxigenin Impurities
CS-T-53968 Dopamine-d4 Hydrochloride Stable Isotopes
CS-T-53991 Drofenine Hydrochloride Intermediates
CS-EK-01158 Ecgonine methyl ester hydrochloride Impurities
CS-T-54164 Erythromycin A Enol Ether Impurities
CS-T-22209 Etanidazole Intermediates
CS-T-76764 Ethylhydrocupreine Fine Chemicals
CS-T-75000 Ethylhydrocupreine Hydrochloride Intermediates
CS-T-23427 Famprofazone Intermediates
CS-W-00095 Fenbendazole-amine Hydrochloride Pesticide Standards
CS-T-74703 Fipexide API Standards
CS-W-00231 Firocoxib API Standards
CS-O-06626 Fluconazole D4 Stable Isotopes
CS-W-00141 Flumequine 13C3 Stable Isotopes
CS-EB-00907 Fluorouracil Related Compound B (F0M373) USP Standards
CS-ER-00899 Fluorouracil Related Compound B(Secondary Standards traceble to USP) Secondary Standards
CS-W-00159 Furazolidone D4 Stable Isotopes
CS-T-25259 Glafenine API Standards
CS-T-78999 Hexestrol Dipropionate Impurities
CS-T-26233 Hexobarbital Intermediates
CS-O-34769 Hydrocodone bitartrate API Standards
CS-R-00534 HYDROCODONE D3 Stable Isotopes
CS-ER-01050 Hydrocortisone Valerate(Secondary Standards traceble to USP) Secondary Standards
CS-EK-01793 Hydromorphone hydrochloride API Standards
CS-EG-02695 Hydromorphone hydrochloride - * narc (Y0000446) EP Standards
CS-EB-01059 Hydromorphone Hydrochloride CII (K1I330) USP Standards
CS-ER-01051 Hydromorphone Hydrochloride CII(Secondary Standards traceble to USP) Secondary Standards
CS-W-00111 Hydroxy Flubendazole Metabolites
CS-W-00169 Hydroxy Ipronidazole D3 Stable Isotopes
CS-T-79721 Hydroxymethyl Clenbuterol Impurities
CS-W-00110 Hydroxytriclabendazole Metabolites
CS-ED-00518 Imidocarb dihydrochloride Intermediates
CS-T-56674 Indoprofen Intermediates
CS-O-39976 Iofetamine hydrochloride API Standards
CS-W-00166 Ipronidazole API Standards
CS-W-00124 Ipronidazole D3 Stable Isotopes
CS-T-30123 Isoxicam Impurities
CS-O-01667 Isoxsuprine Hydrochloride API Standards
CS-EB-02841 Isoxsuprine hydrochloride (1354003) USP Standards
CS-O-03363 Ketoprofen D3 Stable Isotopes
CS-O-01733 Levetiracetam API Standards
CS-EB-02382 Levetiracetam (1359404) USP Standards
CS-EG-00558 Levetiracetam (EP-Y0001253) EP Standards
CS-BX-00952 Mabuterol hydrochloride Fine Chemicals
CS-W-00007 Mapenterol Hydrochloride API Standards
CS-EK-02612 MDMA hydrochloride API Standards
CS-T-31805 Mepenzolate Bromide Intermediates
CS-T-57048 Mephedrone Hydrochloride API Standards
CS-O-01816 Mesterolone API Standards
CS-T-26622 meta-Hydroxybenzoylecgonine Intermediates
CS-O-02733 Metformin D6 Hydrochloride Stable Isotopes
CS-T-30517 Methcathinone Hydrochloride API Standards
CS-T-58834 Metoprolol D7 Stable Isotopes
CS-W-00345 Metronidazole 13C2,15N2 Stable Isotopes
CS-T-26761 m-Hydroxycocaine Intermediates
CS-T-56970 Morphine-β-D-Glucuronide (0.1 mg/mL in Methanol/Water 1:1) Glucuronides
CS-T-02106 N-(4-Aminobutyl)-2-naphthalenesulfonamide Hydrochloride Intermediates
CS-O-10848 Nabilone API Standards
CS-O-02393 N-Acetyl-S-Phenyl-L-Cysteine Building Blocks
CS-W-00211 Nalidixic acid D5 Stable Isotopes
CS-T-59074 Nandrolone 17-Propionate Impurities
CS-T-05711 N-Benzylidenephenethylamine Intermediates
CS-T-07409 N-Boc-amino-(4-N-Fmoc-piperidinyl)carboxylic Acid Impurities
CS-T-07651 N-Boc-nortropinone Building Blocks
CS-T-14485 N-Deacetyl Colchiceine Intermediates
CS-ER-01467 Nicotine Related Compound C(Secondary Standards traceble to USP) Secondary Standards
CS-T-59291 Nifenazone Intermediates
CS-O-02971 Nitrofurantoin 13C3 Stable Isotopes
CS-W-00160 Nitrofurazone 13C,15N2 Stable Isotopes
CS-O-01943 Nylidrin Hydrochloride API Standards
CS-W-00348 Ofloxacin D3 Stable Isotopes
CS-O-02014 Opipramol API Standards
CS-O-02034 Oxantel pamoate API Standards
CS-T-57093 Oxazepam D5 Stable Isotopes
CS-O-30708 Oxetacaine API Standards
CS-W-00188 Oxfendazole D3 Stable Isotopes
CS-W-00245 Oxibendazole D7 Stable Isotopes
CS-W-00318 Oxolinic Acid D5 Stable Isotopes
CS-O-16347 Oxycodone Hydrochloride API Standards
CS-EG-02798 Oxycodone hydrochloride - * narc (Y0000492) EP Standards
CS-EB-01573 Oxycodone Hydrochloride CII (H0I159) USP Standards
CS-ER-01552 Oxycodone Hydrochloride CII(Secondary Standards traceble to USP) Secondary Standards
CS-BX-00980 Pefloxacin-d5 Stable Isotopes
CS-O-06857 Penbutolol D9 Hydrochloride Stable Isotopes
CS-T-60433 Available in Bulk Phenethylamine D4 HCl Stable Isotope Reagent
CS-EK-00629 Phentermine hydrochloride API Standards
CS-EB-01652 Phentermine Hydrochloride CIV (R06050) USP Standards
CS-ER-01644 Phentermine Hydrochloride CIV(Secondary Standards traceble to USP) Secondary Standards
CS-M-57328 Phenyl ethylamine Fine Chemicals
CS-T-26624 p-Hydroxybenzoylecgonine Intermediates
CS-T-84159 Pimethixene Maleate Salt Intermediates
CS-T-84002 Pirbuterol Acetate API Standards
CS-W-00039 Pirbuterol D9 acetate Stable Isotopes
CS-O-02991 Piroxicam D3 Stable Isotopes
CS-O-10010 Praziquantel D11 Stable Isotopes
CS-T-60763 Pridinol Methanesulfonate Salt Impurities
CS-O-06888 Promethazine D6 hydrochloride Stable Isotopes
CS-T-95420 Propionylpromazine-d6 Hydrochloride Stable Isotopes
CS-T-60670 Pseudo Erythromycin A Enol Ether Impurities
CS-ZG-26863 Psilocin Impurities
CS-T-57097 rac Amphetamine Hydrochloride API Standards
CS-O-02658 Rac Carprofen D3 Stable Isotopes
CS-T-42091 rac Salsolinol Hydrochloride NA
CS-O-02891 Rac-Naproxen D3 (Methoxy-D3) Stable Isotopes
CS-T-61069 Reduced Haloperidol Impurities
CS-W-00343 Reserpine D9 Stable Isotopes
CS-O-02282 Retigabine API Standards
CS-W-00246 Robenidine D8 Hydrochloride Stable Isotopes
CS-T-61187 Rolitetracycline Impurities
CS-T-13362 S-(-)-Cotinine Intermediates
CS-W-00041 Salbutamol acetate API Standards
CS-W-00307 Sulfachloropyrazine 13C6 Stable Isotopes
CS-O-39324 Sulfamonomethoxine-13C6 Stable Isotopes
CS-T-42782 Sulfamoxole API Standards
CS-BX-00876 Sulfaphenazole-(sulfanilamide ring-13C6) Stable Isotopes
CS-W-00309 Sulfapyrazole 13C6 Stable Isotopes
CS-T-87256 Suloctidil API Standards
CS-O-43801 Tenamfetamine hydrochloride API Standards
CS-O-30782 Terconazole API Standards
CS-O-02418 Testosterone Isocaproate Impurities
CS-ER-02942 Testosterone isocaproate (Secondary standard) Secondary Standards
CS-I-00602 Testosterone-[d3] (Solution) Stable Isotopes
CS-T-57057 Testosterone-d3 Stable Isotopes
CS-W-00330 Tetramisole D5 Hydrochloride Stable Isotopes
CS-O-16154 Thiamylal Intermediates
CS-EK-01005 Thiopental API Standards
CS-EB-02849 Thiopental (1661002) USP Standards
CS-ER-02087 Thiopental CIII(Secondary Standards traceble to USP) Secondary Standards
CS-EG-01766 Thiopental for system suitability (Y0001478) EP Standards
CS-W-00190 Tolfenamic acid 13C6 Stable Isotopes
CS-W-00291 Toltrazuril sulfone D3 Stable Isotopes
CS-W-00132 Triflupromazine D6 Hydrochloride Stable Isotopes
CS-O-02914 Trimethoprim-D9 Stable Isotopes
CS-W-00130 Vedaprofen D3 Stable Isotopes
CS-O-02950 Xylazine D6 Stable Isotopes
CS-W-00056 Zilpaterol 13C3 Hydrochloride Stable Isotopes
CS-W-00055 Zilpaterol Hydrochloride API Standards
CS-W-00394 Zoalene-D5 (Dinitolmide-D5) Stable Isotopes
CS-M-48356 "(4E)-4-(Ethoxymethylene)-2-phenyl-1,3-oxazol-5(4H)-one" Impurities
CS-T-52867 "2,5-Dimethoxy-4-nitrophenethylamine Hydrochloride" Impurities
CS-T-53408 "3,4-Dimethoxy-2-methylphenethylamine Hydrochloride" Impurities
CS-T-50469 "5-Chloro-6-(2,3-dichlorophenoxy)-1,3-dihydro-2H-benzimidazol-2-one" Intermediates
CS-T-45671 "N,N-5-Trimethyl-1H-indole-3-ethanamine" Intermediates
CS-T-81821 (-)-N-Methylphysostigmine Intermediates
CS-T-47565 (+)-N-Allyl Normetazocine Hydrochloride Impurities
CS-T-50245 (+/-)-Carazolol-d7 Stable Isotopes
CS-T-07529 (2S,5R)-1-Boc-2,5-dimethylpiperazine Impurities
CS-O-32441 (S)-2-((tert-Butoxycarbonyl)amino)-3-(4-carbamoyl-2,6-dimethylphenyl)propanoic acid Impurities
CS-T-84635 (S)-Penbutolol Sulfate Impurities
CS-EK-02364 [13C3]-Flumequine Stable Isotopes
CS-O-14680 1-(3-Trifluoromethylphenyl)piperazine monohydrochloride Fine Chemicals
CS-T-49319 1,3-Bis(4-nitrophenyl)urea D8 Stable Isotope Reagent
CS-O-05830 10,11-dihydro 10-11-epoxy-carbamazepine Metabolites
CS-T-49706 1-Bromo-5-fluoropentane Intermediates
CS-T-80078 1-Methylnicotinamide Chloride Fine Chemicals
CS-W-00241 2-Methyl D3-4-isothiazolin-3-one Hydrochloride Stable Isotopes
CS-T-65311 3-(N-Acetylamino)-5-(N-decyl-N-methylamino)benzyl Alcohol Intermediates
CS-T-07410 4-(Boc-amino)-1-(Fmoc-piperidinyl)-4-carboxylic Acid Impurities
CS-T-94810 4-Acetamido Antipyrine-d3 Stable Isotopes
CS-T-48983 4-Benzyloxy-3-methoxy-N-methylphenethylamine Hydrochloride Intermediates
CS-T-15504 4-Deoxy Pyridoxine Hydrochloride Impurities
CS-W-00101 4-Hydroxy-tetramisole Metabolites
CS-T-84362 4-Phenylbenzaldoxime Intermediates
CS-V-00066 4-PREGNEN-11ß, 17, 21-TRIOL-3, 20-DIONE 17-VALERATE Fine Chemicals
CS-EH-00198 5a-Pregnane-3,11,20-trione Impurities
CS-W-00064 5-Hydroxy Thiabendazole Pesticide Standards
CS-O-06003 5-hydroxy Uracil Metabolites
CS-W-00090 5-Hydroxymebendazole D3 Stable Isotopes
CS-M-31773 5-Methoxytryptophol Fine Chemicals