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 MaxSpecTM standards as well as stable, isotope-labeled (deuterated) compounds. You will also find Cayman Chemical's synthesised forensic analytical standards, including synthetic cannabinoids, cathinones, phenethylamines, amphetamines, indans, opioids, benzodiazepines, tryptamines and phytocannabinoids, among many others. Cayman Chemical has more than 40 years of experience in the synthesis, purification and characterization of biochemicals and supplies its high-purity (certified) reference materials to federally licensed laboratories and qualified academic research institutions for forensic analyses.

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 MaxSpecTM standards as well as stable, isotope-labeled (deuterated) compounds. You will also find Cayman Chemical's synthesised forensic analytical standards, including synthetic cannabinoids, cathinones, phenethylamines, amphetamines, indans, opioids, benzodiazepines, tryptamines and phytocannabinoids, among many others. Cayman Chemical has more than 40 years of experience in the synthesis, purification and characterization of biochemicals and supplies its high-purity (certified) reference materials to federally licensed laboratories and qualified academic research institutions for forensic analyses.

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alpha-Hydroxymidazolam (CRM)
alpha-Hydroxymidazolam (CRM)

Item number: Cay39954-100

alpha-Hydroxymidazolam (CRM) (Cay-39954) is a certified reference material categorized as a benzodiazepine. alpha-Hydroxymidazolam is an active metabolite of midazolam (Cay-19391, Cay-16193). This product is intended for research and forensic applications. This product is also available as a general research tool...
Keywords: 1'-hydroxy Midazolam, Ro 21-6347, 8-chloro-6-(2-fluorophenyl)-4H-imidazo[1,5-a][1,4]benzodiazepine-1-methanol
Application: Certified reference material, benzodiazepine, active midazolam metabolite
CAS 59468-90-5
MW: 341.8 D
46.00€ *
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2-Hydroxyethylflurazepam
2-Hydroxyethylflurazepam

Item number: Cay40185-1

2-Hydroxyethylflurazepam (Cay-40185) is an analytical reference material categorized as a benzodiazepine metabolite. 2-Hydroxyethylflurazepam is a metabolite of flurazepam (Cay-18160, Cay-16190). This product is intended for research and forensic applications.Formal Name:...
Keywords: Ro 07-2750, 7-chloro-5-(2-fluorophenyl)-1,3-dihydro-1-(2-hydroxyethyl)-2H-1,4-benzodiazepin-2-one
Application: Analytical reference material, benzodiazepine metabolite
CAS 20971-53-3
MW: 332.8 D
From 106.00€ *
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Ritalinic Acid (hydrochloride) (CRM)
Ritalinic Acid (hydrochloride) (CRM)

Item number: Cay40261-1

Ritalinic Acid (hydrochloride) (CRM) (Cay-40261) is a certified reference material categorized as an amphetamine metabolite. Ritalinic acid is a metabolite of (±)-threo-methylphenidate (Cay-40186, Cay-11639). It is also a potential metabolite of (±)-threo-ethylphenidate (Cay-13896), (±)-threo-isopropylphenidate...
Keywords: alpha-phenyl-2-piperidineacetic acid, monohydrochloride
Application: Certified reference material, amphetamine metabolite
CAS 19395-40-5
MW: 255.7 D
200.00€ *
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Etomidate-d5
Etomidate-d5

Item number: Cay40297-1

Etomidate-d5 is intended for use as an internal standard for the quantification of etomidate by GC- or LC-MS. Etomidate is a general anesthetic. It selectively binds to GABAA receptors over voltage-gated sodium channels (Nav) and L-type voltage-gated calcium channels (Cav, IC50s = 15.7, 387, and 950 µM,...
Keywords: (+)-Etomidate-d5, (R)-Etomidate-d5, d-Etomidate-d5, 1-[(1R)-1-(phenyl-d5)ethyl]1H-imidazole-5-carboxylic acid ethyl ester
Application: GC-MS, LC-MS internal standard, quantification, general anesthetic
MW: 249.3 D
603.00€ *
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N-Propionitrile Chlorphine (hydrochloride)
N-Propionitrile Chlorphine (hydrochloride)

Item number: Cay40326-1

N-Propionitrile chlorphine (hydrochloride) (Cay-40326) is an analytical reference standard that is structurally similar to known opioids. This product is intended for research and forensic applications.Formal Name: 3-[1-[1-(4-chlorophenyl)ethyl]-4-piperidinyl]-2,3-dihydro-2-oxo-1H-benzimidazole-1-propanenitrile,...
Keywords: Cychlorphine, 3-[1-[1-(4-chlorophenyl)ethyl]-4-piperidinyl]-2,3-dihydro-2-oxo-1H-benzimidazole-1-propanenitrile,...
Application: Analytical reference standard, structurally similar to known opioids
CAS 16145-71-4
MW: 445.4 D
From 109.00€ *
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Methamphetamine Ethyl Carbamate
Methamphetamine Ethyl Carbamate

Item number: Cay40333-1

Methamphetamine ethyl carbamate (Cay-40333) is an analytical reference standard categorized as an amphetamine. This product is intended for research and forensic applications.Formal Name: methyl(1-methyl-2-phenylethyl)-carbamic acid, ethyl ester. CAS Number: 120504-67-8. Molecular Formula: C13H19NO2. Formula Weight:...
Keywords: methyl(1-methyl-2-phenylethyl)-carbamic acid, ethyl ester
Application: Analytical reference standard, amphetamine
CAS 120504-67-8
MW: 221.3 D
From 109.00€ *
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ortho-fluoro Methylaminorex
ortho-fluoro Methylaminorex

Item number: Cay40367-1

ortho-fluoro Methylaminorex (Cay-40367) is an analytical reference standard that is structurally similar to known stimulants. This product is intended for research and forensic applications.Formal Name: 5-(2-fluorophenyl)-4-methyl-4,5-dihydrooxazol-2-amine. Molecular Formula: C10H11FN2O. Formula Weight: 194.2....
Keywords: ortho-fluoro MAR, ortho-fluoro MAX, 2'-fluoro 4-MAR, 2'-fluoro-4-methylaminorex,...
Application: Analytical reference standard, structurally similar to known stimulants
MW: 194.2 D
From 127.00€ *
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meta-fluoro Methylaminorex
meta-fluoro Methylaminorex

Item number: Cay40368-1

meta-fluoro Methylaminorex (Cay-40368) is an analytical reference standard that is structurally similar to known stimulants. This product is intended for research and forensic applications.Molecular Formula: C10H11FN2O. Formula Weight: 194.2. Purity: >98% (as a mixture of diastereomers). Formulation: (Request...
Keywords: 3'-fluoro 4-MAR, meta-fluoro 4-MAR, meta-fluoro 4-MAX, meta-fluoro-4-Methylaminorex, 3'-fluoro 4-MAX,...
Application: Analytical reference standard, structurally similar to known stimulants
MW: 194.2 D
From 127.00€ *
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exo-Tetrahydrocannabivarin
exo-Tetrahydrocannabivarin

Item number: Cay40402-1

exo-Tetrahydrocannabivarin (Cay-40402) is an analytical reference standard that is structurally similar to known phytocannabinoids. exo-Tetrahydrocannabivarin decreases locomotor activity and has antinociceptive activity in mice. exo-Tetrahydrocannabivarin is regulated as a Schedule I compound in the United States....
Keywords: (-)-Delta7-Tetrahydrocannabivarin, (-)-trans-Delta9,11-Tetrahydrocannabivarin, (-)-trans-Delta9,11-THCV, (-)-Delta7-THCV,...
Application: Analytical reference standard, structurally similar to known phytocannabinoids
CAS 137008-69-6
MW: 286.4 D
From 234.00€ *
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N-Benzylcyclohexylamine (hydrochloride)
N-Benzylcyclohexylamine (hydrochloride)

Item number: Cay40410-10

N-Benzylcyclohexylamine (hydrochloride) (Cay-40410) is an analytical reference standard categorized as an arylcyclohexylamine. N-Benzylcyclohexylamine has been found as a cutting agent in 3,4-MDMA samples. This product is intended for research and forensic applications.Formal Name: N-cyclohexyl-benzenemethanamine,...
Keywords: NBCA, N-Benzylcyclohexanamine, N-Benzyl-N-cyclohexylamine, N-cyclohexyl-benzenemethanamine, monohydrochloride
Application: Analytical reference standard, arylcyclohexylamine, adulterant
CAS 16350-96-2
MW: 225.8 D
From 137.00€ *
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Haloperidol (CRM)
Haloperidol (CRM)

Item number: Cay40431-1

Haloperidol (CRM) (Cay-40431) is a certified reference material categorized as a typical antipsychotic. Haloperidol inhibits stereotypic behavior induced by apomorphine or amphetamine in rats. It also inhibits apomorphine-induced decreases in prepulse inhibition of the acoustic startle response in rats. Haloperidol...
Keywords: McN-JR 1625, NSC 170973, NSC 615296, R 1625, 4-[4-(4-chlorophenyl)-4-hydroxy-1-piperidinyl]-1-(4-fluorophenyl)-1-butanone
Application: Certified reference material, typical antipsychotic
CAS 52-86-8
MW: 375.9 D
46.00€ *
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Buspirone-d8 (hydrochloride)
Buspirone-d8 (hydrochloride)

Item number: Cay40435-1

Buspirone-d8 is intended for use as an internal standard for the quantification of buspirone by GC- or LC-MS. Buspirone is a partial agonist of the serotonin (5-HT) receptor subtype 5-HT1A. It binds to the 5-HT1A receptor (IC50 = 5.6 nM) and inhibits forskolin-induced adenylate cyclase activity in primary CA1...
Keywords: MJ9022-1-d8, 8-[4-[4-(2-pyrimidinyl)-1-piperazinyl]butyl-1,1,2,2,3,3,4,4-d8]-8-azaspiro[4.5]decane-7,9-dione,...
Application: GC-MS, LC-MS internal standard, quantification, serotonin 5-HT1A receptor partial agonist
CAS 1216761-39-5
MW: 430 D
From 80.00€ *
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