Active pharmaceutical ingredient (API) impurities for research
All products contained in this category are intended for laboratory use only, and are not meant for human consumption.
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Cidofovir Related Compound B (1-[(S)-3-Hydroxy-2-(O,O-diethylphosphonomethoxy)propyl]cytosine hydrochloride)
Compounds containing a pyrimidine ring, whether or not hydrogenated, or piperazine ring in the structure, …
Formula:
C12H22N3O6P·HCl
Color and Shape:
Green Light Green Powder
Molecular weight:
371.1013
Ref: 45-1133886
| 15mg | Discontinued | Request information |
Eprosartan Related Compound D (4-(bromomethyl)benzoic acid) (DISCONTINUED)
CAS:6232-88-8
Aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacid and their derivatives not elsewhere specified or …
Formula:
C8H7BrO2
Color and Shape:
White Powder
Molecular weight:
213.96294
Ref: 45-1238251
| 15mg | Discontinued | Request information |
Bemotrizinol Impurity Mixture
Diagnostic or lab reagents on a backing, prepared diagnostic or lab reagents whether or not …
Color and Shape:
Light Yellow Powder
Ref: 45-1048583
| Undefined size | Discontinued | Request information | |
| 100mg | Discontinued | Request information |
Gadodiamide Related Compound A (Gadolinium sodium diethylenetriamine pentaacetic acid monomethylamide)
Compounds, inorganic or organic, of rare-earth metals, of yttrium or of scandium, or of mixtures …
Formula:
C15H22GdN4NaO9
Color and Shape:
White Off-White Pale Yellow Powder
Molecular weight:
583.05256
Ref: 45-1287518
| 25mg | Discontinued | Request information |
Cinacalcet Related Compound B
Aromatic monoamines and their derivatives, salts thereof, nesoi
Formula:
C32H31F6N
Color and Shape:
Brown Liquid
Molecular weight:
543.6
Ref: 45-1133911
| Undefined size | Discontinued | Request information |
Deacetylnorgestimate ((E)- and (Z)-17-deacetyl norgestimate mixture) (DISCONTINUED)
CAS:53016-31-2
Estrogens and progestins
Formula:
C21H29NO2
Color and Shape:
White Powder
Molecular weight:
327.21983
Ref: 45-1471958
| 25mg | Discontinued | Request information |
Amiodarone Related Compound C
CAS:85642-08-6
Aromatic heterocyclic compounds with oxygen hetero-atom(s) only, nesoi
Formula:
C25H30INO3
Molecular weight:
519.12704
Ref: 45-1027335
| Undefined size | Discontinued | Request information |
Amiodarone Related Compound F
CAS:147030-50-0
Aromatic heterocyclic compounds with oxygen hetero-atom(s) only, nesoi
Formula:
C19H17IO3
Molecular weight:
420.02224
Ref: 45-1027368
| Undefined size | Discontinued | Request information |
Methotrexate Related Compound C ((S)-2-(4-{[(2-amino-4-oxo-1,4-dihydropteridin-6-yl)methyl](methyl)amino}benzamido) pentanedioic acid)
CAS:2410-93-7
Compounds containing a pyrimidine ring, whether or not hydrogenated, or piperazine ring in the structure, …
Formula:
C20H21N7O6
Color and Shape:
Dark Yellow Orange Powder
Molecular weight:
455.15533
Ref: 45-1414036
| 50mg | Discontinued | Request information |
Paroxetine Related Compound E Mixture (1-Methyl-4-(p-fluorophenyl)-1,2,3,6-tetrahydropyridine in Paroxetine Hydrochloride Matrix) (DISCONTINUED)
Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, nesoi
Color and Shape:
White Off-White Crystalline Powder
Ref: 45-1500262
| 25mg | Discontinued | Request information |
Ioxilan Related Compound A (5-amino-2,4,6-triiodo-3 N-(2-hydroxyethyl)carbamoyl benzoic acid) (DISCONTINUED)
CAS:22871-58-5
Aromatic cyclic amides (including cyclic carbamates) and their derivatives; salts thereof
Formula:
C10H9I3N2O4
Color and Shape:
White Powder
Molecular weight:
601.76965
Ref: 45-1345228
| 100mg | Discontinued | Request information |
Modafinil Related Compound D (Bis(diphenylmethyl)ether) (DISCONTINUED)
CAS:574-42-5
Aromatic ethers and their halogenated, sulfonated, nitrated or nitrosated derivatives
Formula:
C26H22O
Color and Shape:
White Powder
Molecular weight:
350.16707
Ref: 45-1445379
| 20mg | Discontinued | Request information |
Nisoldipine Related Compound C (Isobutyl (Z)-2-(2-nitrobenzylidene)-3-oxobutanoate) (DISCONTINUED)
Carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, …
Formula:
C15H17NO5
Color and Shape:
Pale Yellow Solid
Molecular weight:
291.11067
Ref: 45-1463949
| 30mg | Discontinued | Request information |
Ioversol Related Compound A (5-Amino-N,N'-bis(2,3-dihydroxypropyl)-2,4,6-triiodoisophthalamide) (DISCONTINUED)
CAS:76801-93-9
Aromatic cyclic amides (including cyclic carbamates) and their derivatives; salts thereof
Formula:
C14H18I3N3O6
Color and Shape:
Off-White Tan Crystalline Powder
Molecular weight:
704.83298
Ref: 45-1345115
| 50mg | Discontinued | Request information |
Modafinil Related Compound E (Bis(diphenylmethyl)disulfide) (DISCONTINUED)
CAS:1726-02-9
Other aromatic organo-sulfur compounds (excluding pesticides)
Formula:
C26H22S2
Color and Shape:
White Powder
Molecular weight:
398.11629
Ref: 45-1445380
| 20mg | Discontinued | Request information |
Amiodarone Related Compound G
CAS:1087223-70-8
Aromatic heterocyclic compounds with oxygen hetero-atom(s) only, nesoi
Formula:
C26H31I2NO4
Molecular weight:
675.03425
Ref: 45-1027379
| Undefined size | Discontinued | Request information |
Clavam-2-carboxylate Potassium
CAS:2196185-67-6
Diagnostic or lab reagents on a backing, prepared diagnostic or lab reagents whether or not …
Formula:
C6H6KNO4
Color and Shape:
White Film
Molecular weight:
194.99339
Ref: 45-1134404
| 2mg | Discontinued | Request information |
Gadoversetamide Related Compound A (DISCONTINUED)
Compounds, inorganic or organic, of rare-earth metals, of yttrium or of scandium, or of mixtures …
Formula:
C17H27N4O10Gd
Color and Shape:
White Powder
Molecular weight:
604.67
Ref: 45-1287686
| 200mg | Discontinued | Request information |
Iloperidone Related Compound A ([4'-(3-Chloropropoxy)-3'-methoxy]acetophenone) (DISCONTINUED)
CAS:58113-30-7
Halogenated, sulfonated, nitrated or nitrosated derivatives: chlordecone (iso)
Formula:
C12H15ClO3
Color and Shape:
Powder
Molecular weight:
242.07097
Ref: 45-1336250
| 20mg | Discontinued | Request information |
Cinacalcet Related Compound E
Aromatic alcohols and their halogenated, sulfonated, nitrated or nitrosated derivatives not elsewhere specified or included
Formula:
C10H11F3O
Color and Shape:
Colorless Clear Light Yellow Light Brown Liquid
Molecular weight:
204.0762
Ref: 45-1133831
| Undefined size | Discontinued | Request information |
