Reference Standards and Forensic Substances

The importance of reference standards in performing quantitative assays is often overlooked. A well characterized reference standard in combination with robust methodology will deliver accurate and precise analytical results. In our portfolio, we have numerous high-quality standards for your investigations. These include ready-to-use, quantitative MaxSpec™ standards as well as stable, isotope-labeled (deuterated) compounds. You will also find Cayman Chemical's synthesised forensic analytical standards and (certified) reference materials, including synthetic cannabinoids, cathinones, phenethylamines, amphetamines, indans, opioids, benzodiazepines, tryptamines and phytocannabinoids. Due to the strict regulations for these substances, we ask that you contact us by e-mail or via our contact form for further information. 

The importance of reference standards in performing quantitative assays is often overlooked. A well characterized reference standard in combination with robust methodology will deliver accurate... read more »
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Reference Standards and Forensic Substances

The importance of reference standards in performing quantitative assays is often overlooked. A well characterized reference standard in combination with robust methodology will deliver accurate and precise analytical results. In our portfolio, we have numerous high-quality standards for your investigations. These include ready-to-use, quantitative MaxSpec™ standards as well as stable, isotope-labeled (deuterated) compounds. You will also find Cayman Chemical's synthesised forensic analytical standards and (certified) reference materials, including synthetic cannabinoids, cathinones, phenethylamines, amphetamines, indans, opioids, benzodiazepines, tryptamines and phytocannabinoids. Due to the strict regulations for these substances, we ask that you contact us by e-mail or via our contact form for further information. 

274 from 280 pages
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(S)-Ketamine (hydrochloride)
(S)-Ketamine (hydrochloride)

Item number: Cay38399-100

(S)-Ketamine (hydrochloride) (Cay-38399) is an analytical reference standard categorized as an arylcyclohexylamine. Formulations containing (S)-ketamine, in combination with another antidepressant, have been used in the treatment of treatment-resistant depression. (S)-Ketamine is regulated as a Schedule III compound...
Keywords: (S)-(+)-Ketamine, Esketamine, (2S)-2-(2-chlorophenyl)-2-(methylamino)-cyclohexanone, monohydrochloride
Application: Analytical reference standard, arylcyclohexylamine, NMDA receptor antagonist
CAS 33643-47-9
MW: 274.2 D
From 1,230.00€ *
Review
Clonidine (hydrochloride)
Clonidine (hydrochloride)

Item number: Cay38558-1

Clonidine (hydrochloride) (Cay-38558) is an analytical reference standard categorized as an alpha2-adrenergic receptor agonist. Formulations containing clonidine have been used in the treatment of opioid withdrawal. This product is intended for analytical forensic applications. This product is also available as a...
Keywords: ST 155, N-(2,6-dichlorophenyl)-4,5-dihydro-1H-imidazol-2-amine, monohydrochloride
Application: Analytical reference standard, alpha2-adrenergic receptor agonist
CAS 4205-91-8
MW: 266.6 D
From 114.00€ *
Review
Tizanidine (hydrochloride)
Tizanidine (hydrochloride)

Item number: Cay38559-1

Tizanidine (hydrochloride) (Cay-38559) is an analytical reference standard categorized as a muscle relaxant. Tizanidine inhibits alpha- and gamma-rigidity in rats, reflex muscle tone in rabbits, and the linguomandibular reflex in cats. It has been associated with fatal overdoses. Formulations containing tizanidine...
Keywords: DS 103-282, 5-chloro-N-(4,5-dihydro-1H-imidazol-2-yl)-2,1,3-benzothiadiazol-4-amine, monohydrochloride
Application: Analytical reference standard, muscle relaxant, alpha2-Adrenergic receptor agonist
CAS 64461-82-1
MW: 290.2 D
From 114.00€ *
Review
N-Phenethyl-N-phenylpropionamide
N-Phenethyl-N-phenylpropionamide

Item number: Cay38752-1

N-Phenethyl-N-phenylpropionamide (Cay-38752) is an analytical reference standard that is structurally similar to known opioids. N-Phenethyl-N-phenylpropionamide is a byproduct in the synthesis of fentanyl (Cay-ISO60197, Cay-23580, Cay-14719). This product is intended for research and forensic applications.Formal...
Keywords: N-phenyl-N-(2-phenylethyl)-propanamide
Application: Analytical reference standard, structurally similar to known opioids, fentanyl synthesis byproduct
CAS 1890117-43-7
MW: 253.3 D
From 326.00€ *
Review
hydroxy Bupropion
hydroxy Bupropion

Item number: Cay9000522-1

hydroxy Bupropion (Cay-9000522) is an analytical reference standard categorized as an antidepressant. hydroxy Bupropion is a metabolite of bupropion (Cay-10488). It substitutes for (+)-amphetamine (D-amphetamine, Cay-26204) in rats in a two-lever drug discrimination test. This product is intended for research and...
Keywords: BUPOH, OH-bupropion, 2-(3-chlorophenyl)-3,5,5-trimethyl-2-morpholinol
Application: Analytical reference standard, antidepressant, bupropion metabolite
CAS 357399-43-0
MW: 255.7 D
From 54.00€ *
Review
JWH 250 5-hydroxyindole metabolite
JWH 250 5-hydroxyindole metabolite

Item number: Cay9000766-1

Cannabimimetic indoles, including certain JWH compounds, have been identified in herbal blends. Metabolites of two closely-related compounds, JWH 015 and JWH 018, have been identified from in vitro liver microsomal metabolism and from urine, respectively. JWH 250 is a cannabimimetic indole that is structurally and...
Keywords: 1-(5-hydroxy-1-pentyl-1H-indol-3-yl)-2-(2-methoxyphenyl)ethanone
Application: Analytical reference standard, expected serum/urinary JWH 250 metabolite
CAS 1379604-67-7
MW: 351.4 D
From 380.00€ *
Review
JWH 018 5-hydroxyindole metabolite
JWH 018 5-hydroxyindole metabolite

Item number: Cay9000852-1

JWH 018 5-hydroxyindole metabolite is a major monohydroxylated urinary metabolite of JWH 018, a WIN 55,212-2 derivative that is a mildly selective agonist of the peripheral cannabinoid (CB2) receptor. In urine samples, this metabolite is almost completely glucuronidated. This product is intended for research and...
Keywords: (5-hydroxy-1-pentyl-1H-indol-3-yl)(naphthalen-1-yl)-methanone
Application: Analytical reference standard, major urinary JWH 018 metabolite
CAS 1307803-43-5
MW: 357.4 D
From 380.00€ *
Review
nor-Mephedrone (hydrochloride)
nor-Mephedrone (hydrochloride)

Item number: Cay9000940-10

nor-Mephedrone (hydrochloride) (Cay-9000940) is an analytical reference standard categorized as a cathinone metabolite. It is a metabolite of mephedrone (Cay-10801, Cay-26277). This product is intended for research and forensic applications.Formal Name: 2-amino-1-(4-methylphenyl)-1-propanone, monohydrochloride. CAS...
Keywords: Mephedrone Metabolite, NSC 60487, 2-amino-1-(4-methylphenyl)-1-propanone, monohydrochloride
Application: Analytical reference standard, cathinone metabolite
CAS 6941-17-9
MW: 199.7 D
From 326.00€ *
Review
JWH 251 3-methylphenyl isomer
JWH 251 3-methylphenyl isomer

Item number: Cay9001021-10

JWH 251 is a cannabimimetic indole that shows a high affinity for the central cannabinoid (CB1) receptor with a Ki value of 29 nM. This compound has been identified as an adulterant in herbal blends. JWH 251 3-methylphenyl isomer differs from JWH 251 by having the methyl group at the 3 position, rather than the 2...
Keywords: JWH 251 3-methyl isomer, 1-(1-pentyl-1H-indol-3-yl)-2-(m-tolyl)ethanone
Application: Analytical reference standard, synthetic cannabinoid analog
CAS 1427325-88-9
MW: 319.4 D
From 308.00€ *
Review
JWH 251 4-methylphenyl isomer
JWH 251 4-methylphenyl isomer

Item number: Cay9001022-10

JWH 251 is a cannabimimetic indole that shows a high affinity for the central cannabinoid (CB1) receptor with a Ki value of 29 nM. This compound has been identified as an adulterant in herbal blends. JWH 251 4-methylphenyl isomer differs from JWH 251 by having the methyl group at the 4 position, rather than the 2...
Keywords: JWH 251 4-methyl isomer, 2-(4-methylphenyl)-1-(1-pentyl-1H-indol-3-yl)-ethanone
Application: Analytical reference standard, synthetic cannabinoid analog
CAS 864445-41-0
MW: 319.4 D
From 308.00€ *
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JWH 398 5-chloronaphthyl isomer
JWH 398 5-chloronaphthyl isomer

Item number: Cay9001025-1

JWH 398 5-chloronaphthyl isomer (Cay-9001025) is an analytical reference standard that is structurally similar to known synthetic cannabinoids. This product is intended for research and forensic applications.Formal Name: (5-chloronaphthalen-1-yl)(1-pentyl-1H-indol-3-yl)methanone. CAS Number: 1427325-89-0. Molecular...
Keywords: (5-chloronaphthalen-1-yl)(1-pentyl-1H-indol-3-yl)methanone
Application: Analytical reference standard, synthetic cannabinoid analog
CAS 1427325-89-0
MW: 375.9 D
From 297.00€ *
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AM2201 N-(2-fluoropentyl) isomer
AM2201 N-(2-fluoropentyl) isomer

Item number: Cay9001031-1

AM2201 is a potent synthetic cannabinoid (CB) with Ki values of 1.0 and 2.6 nM for the central CB1 and peripheral CB2 receptors, respectively. AM2201 N-(2-fluoropentyl) isomer differs structurally from AM2201 by having fluorine at the 2 position rather than the 5 position of the pentyl chain. The physiological and...
Keywords: (1-(2-fluoropentyl)-1H-indol-3-yl)(naphthalen-1-yl)methanone
Application: Analytical reference standard, synthetic cannabinoid analog
CAS 1800102-24-2
MW: 359.4 D
From 262.00€ *
Review
274 from 280 pages