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. 

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5-fluoro NiPT (hemifumarate)
5-fluoro NiPT (hemifumarate)

Item number: Cay44756-1

5-fluoro NiPT (hemifumarate) (Cay-44756) is an analytical reference standard categorized as a tryptamine. This product is intended for research and forensic applications. Synonyms: 5-fluoro-N-iso-Propyltryptamine. Formal Name: 5-fluoro-N-(1-methylethyl)-1H-indole-3-ethanamine. Molecular Formula: C13H17FN2 ...
Keywords: 5-fluoro-N-iso-Propyltryptamine, 5-fluoro-N-(1-methylethyl)-1H-indole-3-ethanamine
Application: Analytical reference standard, tryptamine
MW: 220.29 D
From 110.00€ *
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Melperone (hydrochloride) (CRM)
Melperone (hydrochloride) (CRM)

Item number: Cay44822-1

Melperone (hydrochloride) (CRM) (Cay-44822) is a certified reference material categorized as an atypical antipsychotic. This product is intended for analytical forensic applications. This product is also available as a general research tool (Cay-19770).
Keywords: FG 5111, Methylperone, 1-(4-fluorophenyl)-4-(4-methyl-1-piperidinyl)-1-butanone, monohydrochloride
Application: Certified reference material, atypical antipsychotic
CAS 1622-79-3
MW: 299.81 D
155.00€ *
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Cholic Acid (CRM)
Cholic Acid (CRM)

Item number: Cay44866-1

Cholic acid (CRM) (Cay-44866) is a certified reference material categorized as a primary bile acid. It is produced from cholesterol via a multistep process and is involved in the facilitation of digestion and absorption of dietary lipids and fat-soluble vitamins. Increased serum levels of cholic acid are associated...
Keywords: CA, Cholalic Acid, Cholalin, NSC 6135, 5beta-3alpha,7alpha,12alpha-trihydroxy-cholan-24-oic acid
Application: Certified reference material, primary bile acid
CAS 81-25-4
MW: 408.58 D
107.00€ *
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Propafenone (hydrochloride)
Propafenone (hydrochloride)

Item number: Cay44945-25

Propafenone (hydrochloride) (Cay-44945) is an analytical reference standard categorized as a class IC antiarrhythmic agent. Propafenone has been associated with accidental and intentional overdose. Formulations containing propafenone have been used in the treatment of cardiac arrhythmias. This product is intended...
Keywords: 1-[2-[2-hydroxy-3-(propylamino)propoxy]phenyl]-3-phenyl-1-propanone, monohydrochloride
Application: Analytical reference standard, class IC antiarrhythmic agent
CAS 34183-22-7
MW: 377.91 D
From 95.00€ *
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Etomidate-d5
Etomidate-d5

Item number: Cay44952-1

Etomidate-d5 (Cay-44952) is intended for use as an internal standard for the quantification of etomidate (Cay-41826, Cay-21993) by GC- or LC-MS. Etomidate is categorized as an anesthetic. Etomidate has been associated with overdose and death. Formulations containing etomidate have been used as anesthetics. This...
Keywords: (+)-Etomidate-d5, (R)-Etomidate-d5, d-Etomidate-d5, 1-[(1R)-1-phenylethyl]-1H-imidazole-5-carboxylic acid ethyl-d5 ester
Application: Analytical reference standard, GC-MS, LC-MS internal standard, quantification, anesthetic
CAS 3046414-07-4
MW: 249.32 D
302.00€ *
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Palmitic Acid-13C16 (sodium salt)
Palmitic Acid-13C16 (sodium salt)

Item number: Cay45016-1

Palmitic acid-13C16 is intended for use as an internal standard for the quantification of palmitic acid (Cay-10006627, Cay-43561) by GC- or LC-MS. Palmitic acid is a common 16-carbon saturated fat that represents 10-20% of human dietary fat intake and comprises approximately 25 and 65% of human total plasma lipids...
Keywords: C16:0-13C16, Cetylic Acid-13C16, FA 16:0-13C16, Hexadecanoic Acid-13C16,...
Application: GC-MS, LC-MS internal standard, quantification, saturated fatty acid
CAS 2483736-17-8
MW: 294.3 D
From 53.00€ *
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Altretamine-d18
Altretamine-d18

Item number: Cay9003471-1

Altretamine-d18 is intended for use as an internal standard for the quantification of altretamine (Cay-23662) by GC- or LC-MS. Altretamine is an anticancer agent. It induces cytotoxicity in an ovarian cancer cell line when used at a concentration of 10 µg/ml. Altretamine (0. mM) inhibits glutathione peroxidase 4...
Keywords: 2,4,6-Tris(dimethylamino)-1,3,5-triazine-d18, Hexamethylmelamine-d18, HMM-d18,...
Application: GC-MS, LC-MS internal standard, quantification, antineoplastic
CAS 65886-69-3
MW: 228.4 D
From 110.00€ *
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(+)-Clobenzorex (hydrochloride)
(+)-Clobenzorex (hydrochloride)

Item number: Cay37905-10

(+)-Clobenzorex (hydrochloride) (Cay-37905) is an analytical reference standard categorized as an amphetamine. (+)-Clobenzorex is a prodrug form of D-amphetamine (Cay-39974, Cay-14204, Cay-26204). It induces locomotor activity in mice. This product is intended for research and forensic applications. Synonyms: BA...
Keywords: BA 7205, Dinintel, N-(2-Chlorobenzyl)-1-phenylpropan-2-amine, SD 271-12,...
Application: Analytical reference standard, amphetamine
CAS 5843-53-8
MW: 296.23 D
From 93.00€ *
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Orphenadrine (citrate)
Orphenadrine (citrate)

Item number: Cay39028-100

Orphenadrine (citrate) (Cay-39028) is an analytical reference standard categorized as a muscle relaxant, an anticholinergic agent, and an antihistamine. Orphenadrine has been associated with misuse. Formulations containing orphenadrine have been used in the treatment of musculoskeletal pain. This product is intended...
Keywords: N,N-dimethyl-2-[(2-methylphenyl)phenylmethoxy]-ethanamine, 2-hydroxy-1,2,3-propanetricarboxylate
Application: Analytical reference standard, muscle relaxant
CAS 4682-36-4
MW: 461.5 D
From 67.00€ *
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1(S)-Tetrahydrocannabidihexol
1(S)-Tetrahydrocannabidihexol

Item number: Cay43454-1

1(S)-Tetrahydrocannabidihexol (Cay-43454) is an analytical reference standard that is structurally similar to known phytocannabinoids. This product is intended for research and forensic applications. Formal Name: 5-hexyl-2-((1R,2S,5S)-2-isopropyl-5-methylcyclohexyl)benzene-1,3-diol. Molecular Formula: C22H36O2....
Keywords: 5-hexyl-2-((1R,2S,5S)-2-isopropyl-5-methylcyclohexyl)benzene-1,3-diol
Application: Analytical reference standard, structurally similar to known phytocannabinoids
MW: 332.53 D
From 372.00€ *
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4-phenyl-alpha-Pyrrolidinopentiophenone (hydrochloride)
4-phenyl-alpha-Pyrrolidinopentiophenone (hydrochloride)

Item number: Cay43885-1

4-phenyl-alpha-Pyrrolidinopentiophenone (hydrochloride) (Cay-43885) is an analytical reference standard categorized as a cathinone. 4-phenyl-alpha-Pyrrolidinopentiophenone has been found in samples seized by law enforcement. This product is intended for research and forensic applications. Synonyms: alpha-BPVP....
Keywords: alpha-BPVP, 1-([1,1'-biphenyl]-4-yl)-2-(pyrrolidin-1-yl)pentan-1-one, monohydrochloride
Application: Analytical reference standard, cathinone
MW: 343.9 D
From 110.00€ *
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4-fluoro NNEI
4-fluoro NNEI

Item number: Cay43937-1

4-fluoro NNEI (Cay-43937) is an analytical reference standard that is structurally similar to known synthetic cannabinoids. This product is intended for research and forensic applications. Synonyms: 4-fluoro MN-24. Formal Name: 1-(4-fluoropentyl)-N-1-naphthalenyl-1H-indole-3-carboxamide. CAS Number: 2365471-80-1....
Keywords: 4-fluoro MN-24, 1-(4-fluoropentyl)-N-1-naphthalenyl-1H-indole-3-carboxamide
Application: Analytical reference standard, structurally similar to known synthetic cannabinoids
CAS 2365471-80-1
MW: 374.46 D
From 110.00€ *
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5 from 273 pages