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. 

13 from 282 pages
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25-hydroxy Cholesterol-d2
25-hydroxy Cholesterol-d2

Item number: Cay44828-1

25-hydroxy Cholesterol-d2 is intended for use as an internal standard for the quantification of 25-hydroxy cholesterol (Cay-11097) by GC- or LC-MS. 25-hydroxy Cholesterol is an oxysterol. It is formed from cholesterol by cholesterol-25-hydroxylase, and its production can be induced by inflammation or infection....
Keywords: (3S,8S,9S,10R,13R,14S,17R)-17-((R)-6-hydroxy-6-methylheptan-2-yl)-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetra...
Application: GC-MS, LC-MS internal standard, quantification, oxysterol
MW: 404.68 D
From 89.00€ *
Review
(-)-6alpha-hydroxy Cannabidivarin
(-)-6alpha-hydroxy Cannabidivarin

Item number: Cay44839-1

(-)-6alpha-hydroxy Cannabidivarin (Cay-44839) is an analytical reference standard categorized as a phytocannabinoid metabolite. (-)-6alpha-hydroxy Cannabidivarin is a metabolite of cannabidivarin (Cay-20165, Cay-42628, Cay-9001574). This product is intended for research and forensic applications. Synonyms:...
Keywords: 6alpha-hydroxy CBDV, 2-[(1R,4S,6R)-4-hydroxy-3-methyl-6-(1-methylethenyl)-2-cyclohexen-1-yl]-5-propyl-1,3-benzenediol
Application: Analytical reference standard, phytocannabinoid metabolite
CAS 2941235-72-7
MW: 302.41 D
From 243.00€ *
Review
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
110.00€ *
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Taurodeoxycholic Acid (CRM)
Taurodeoxycholic Acid (CRM)

Item number: Cay44869-100

Taurodeoxycholic acid (CRM) (Cay-44869) is a certified reference material categorized as a taurine-conjugated secondary bile acid. It is produced from cholic acid via gut microbiota followed by taurine conjugation and is involved in the facilitation of digestion and absorption of dietary lipids and fat-soluble...
Keywords: TDCA, 2-[[(3alpha,5beta,12alpha)-3,12-dihydroxy-24-oxocholan-24-yl]amino]-ethanesulfonic acid
Application: Certified reference material, taurine-conjugated secondary bile acid
CAS 516-50-7
MW: 499.71 D
194.00€ *
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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 98.00€ *
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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
312.00€ *
Review
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 55.00€ *
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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 114.00€ *
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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 97.00€ *
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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 69.00€ *
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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 384.00€ *
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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 114.00€ *
Review
13 from 282 pages