Skip to content

Impurities & Reference Standards

Metabolites & Degradation Products

Source 200 metabolites & degradation products for research, QC and production, documented with COA and SDS.

3,922products

158in stock

COA + SDSwith every lot

Reference Standard

4-Hydroxymelatonin chemical structure

4-Hydroxymelatonin

CAS: 39998-64-6
Formula: C₁₃H₁₆N₂O₃
MW: 248.28 g/mol

VQ-038290

Reference Standard

4-Hydroxymellein chemical structure

4-Hydroxymellein

CAS: 33788-22-6
Formula: C₁₀H₁₀O₄
MW: 194.18 g/mol

VQ-040915

Reference Standard

4-Hydroxymethyl ambrisentan chemical structure

4-Hydroxymethyl ambrisentan

CAS: 1106685-84-0
Formula: C₂₂H₂₂N₂O₅
MW: 394.4 g/mol

VQ-020782

Reference Standard

4-Hydroxymethyl Loratadine chemical structure

4-Hydroxymethyl Loratadine

CAS: 609806-40-8
Formula: C₂₃H₂₅ClN₂O₃
MW: 412.9 g/mol

VQ-031627

Reference Standard

4-Hydroxymethyl Vortioxetine

4-Hydroxymethyl Vortioxetine

CAS: 1429750-85-5
Formula: C₁₈H₂₂N₂OS
MW: 314.45 g/mol

VQ-034698

Reference Standard

4-Hydroxyphenyl Carvedilol chemical structure

4-Hydroxyphenyl Carvedilol

CAS: 142227-49-4
Formula: C₂₄H₂₆N₂O₅
MW: 422.5 g/mol

VQ-021078

Reference Standard

4-Hydroxyphenytoin chemical structure

4-Hydroxyphenytoin

CAS: 2784-27-2
Formula: C₁₅H₁₂N₂O₃
MW: 268.27 g/mol

VQ-041455

Reference Standard

4-Hydroxyphthalic acid chemical structure

4-Hydroxyphthalic acid

CAS: 610-35-5
Formula: C₈H₆O₅
MW: 182.13 g/mol

VQ-038973

Reference Standard

4-Hydroxyquinoline-3-carboxylic acid chemical structure

4-Hydroxyquinoline-3-carboxylic acid

CAS: 34785-11-0
Formula: C₁₀H₇NO₃
MW: 189.17 g/mol

VQ-048731

Reference Standard

4-Hydroxysolifenacin chemical structure

4-Hydroxysolifenacin

CAS: 861998-77-8
Formula: C₂₃H₂₆N₂O₃
MW: 378.5 g/mol

VQ-033915

Reference Standard

4-Hydroxytestosterone chemical structure

4-Hydroxytestosterone

CAS: 2141-17-5
Formula: C₁₉H₂₈O₃
MW: 304.4 g/mol

VQ-042453

Reference Standard

4-Hydroxytriazolam chemical structure

4-Hydroxytriazolam

CAS: 65686-11-5
Formula: C₁₇H₁₂Cl₂N₄O
MW: 359.2 g/mol

VQ-042670

Reference Standard

4-Methyl-5-thiazoleethanol chemical structure

4-Methyl-5-thiazoleethanol

CAS: 137-00-8
Formula: C₆H₉NOS
MW: 143.21 g/mol

VQ-023357

Reference Standard

4-Methylumbelliferyl beta-D-glucuronide chemical structure

4-Methylumbelliferyl beta-D-glucuronide

CAS: 6160-80-1
Formula: C₁₆H₁₆O₉
MW: 352.29 g/mol

VQ-019698

Reference Standard

4-Methylumbelliferyl-beta-D-glucuronide hydrate chemical structure

4-Methylumbelliferyl-beta-D-glucuronide hydrate

CAS: 881005-91-0
Formula: C₁₆H₁₈O₁₀
MW: 370.31 g/mol

VQ-041037

Reference Standard

4-Monobromo-canabidiol chemical structure

4-Monobromo-canabidiol

CAS: 112639-10-8
Formula: C₂₁H₂₉BrO₂
MW: 393.4 g/mol

VQ-029621

Reference Standard

4-Nitro-2,3-lutidine N-Oxide chemical structure

4-Nitro-2,3-lutidine N-Oxide

CAS: 37699-43-7
Formula: C₇H₈N₂O₃
MW: 168.15 g/mol

VQ-026355

Reference Standard

4-Nitrobenzyl (4R,5R,6S)-3-[(diphenylphosphono)oxy]-6-[(R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate chemical structure

4-Nitrobenzyl (4R,5R,6S)-3-[(diphenylphosphono)oxy]-6-[(R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate

CAS: 90776-59-3
Formula: C₂₉H₂₇N₂O₁₀P
MW: 594.5 g/mol

VQ-049047

Reference Standard

4-Nitrobenzyl 2-diazo-4-((2R,3S)-3-((R)-1-hydroxyethyl)-4-oxoazetidin-2-yl)-3-oxobutanoate chemical structure

4-Nitrobenzyl 2-diazo-4-((2R,3S)-3-((R)-1-hydroxyethyl)-4-oxoazetidin-2-yl)-3-oxobutanoate

CAS: 74288-39-4
Formula: C₁₆H₁₆N₄O₇
MW: 376.32 g/mol

VQ-037680

Reference Standard

4-O-Methylated opicapone

4-O-Methylated opicapone

CAS: 1428009-81-7
Formula: C₁₆H₁₂Cl₂N₄O₆
MW: 427.19 g/mol

VQ-038778

Reference Standard

4-Oxo-9-Cis Retinoic Acid chemical structure

4-Oxo-9-Cis Retinoic Acid

CAS: 150737-18-1
Formula: C₂₀H₂₆O₃
MW: 314.4 g/mol

VQ-026243

Reference Standard

4-Oxo-all-trans Retinoic Acid chemical structure

4-Oxo-all-trans Retinoic Acid

CAS: 38030-57-8
Formula: C₂₀H₂₆O₃
MW: 314.4 g/mol

VQ-026244

Reference Standard

4-Sulfate Aminoantipyrine chemical structure

4-Sulfate Aminoantipyrine

CAS: 1759-26-8
Formula: C₁₁H₁₃N₃O₄S
MW: 283.31 g/mol

VQ-043885

Reference Standard

4-Trans-Hydroxyglipizide chemical structure

4-Trans-Hydroxyglipizide

CAS: 38207-36-2
Formula: C₂₁H₂₇N₅O₅S
MW: 461.5 g/mol

VQ-026005

Need a price, a spec or a custom compound?

Send us your list — product names or CAS numbers, grade, quantity and destination. Our team replies with a formal quotation, COA and lead time.

Request a quote Contact sales