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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Calcitonin Salmon Related Compound B (calcitonin salmon-glycine) (COLD SHIPMENT REQUIRED) (DISCONTINUED)
CAS:115472-96-3
Polypeptide, protein and glycoprotein hormones, their derivatives and structural analogues, nesoi
Formula:
C147H242N44O50S2
Color and Shape:
Colorless Liquid
Molecular weight:
3487.71879
Ref: 45-1086221
0.34mg | Discontinued | Request information |
Nisoldipine Related Compound G (Diisobutyl 2,6-dimethyl-4-(2-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate) (DISCONTINUED)
CAS:2226462-71-9
Compounds containing an unfused pyridine ring in the structure, nesoi
Formula:
C23H30N2O6
Color and Shape:
Yellow Powder
Molecular weight:
430.21039
Ref: 45-1464183
30mg | Discontinued | Request information |
Ticagrelor R,R,S,R-Isomer
CAS:2096989-55-6
Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure, …
Formula:
C23H28F2N6O4S
Molecular weight:
522.18608
Ref: 45-1666980
Undefined size | Discontinued | Request information |
Probucol Related Compound C (4-[(3,5-di-tert-butyl-2-hydroxyphenylthio)isopropylidenethio]-2,6-di-tert-butylphenol) (DISCONTINUED)
CAS:1391054-68-4
Other aromatic organo-sulfur compounds (excluding pesti
Formula:
C31H48O2S2
Color and Shape:
Powder
Molecular weight:
516.86
Ref: 45-1563342
25mg | Discontinued | Request information |
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 |
Drometrizole Trisiloxane Related Compound A (2-(2H-Benzotriazol-2-yl)-6-(isobuten-1-yl)-p-cresol) (DISCONTINUED)
CAS:2170-37-8
Aromatic or modified aromatic drugs with nitrogen heter
Formula:
C17H17N3O
Color and Shape:
Yellow Powder
Molecular weight:
279.13716
Ref: 45-1228029
25mg | Discontinued | Request information |
Eprosartan Related Compound E (4-(hydroxymethyl)benzoic acid) (DISCONTINUED)
CAS:3006-96-0
Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides etc not elsewhere specified …
Formula:
C8H8O3
Color and Shape:
Beige White Powder
Molecular weight:
152.04734
Ref: 45-1238262
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 |
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 |
Sulfamethazine Related Compound A (4-Amino-N-carbamimidoylbenzenesulfonamide-, monohydrate) (DISCONTINUED)
CAS:6190-55-2
Sulfonamides, nesoi
Formula:
C7H10N4O2S·H2O
Color and Shape:
White Powder
Molecular weight:
232.06301
Ref: 45-1629019
100mg | 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 |
Iodixanol Related Compound E (5-{N-[3-(N-{3-carbamoyl-5-[(2,3-dihydroxypropyl)carbamoyl]-2,4,6-triiodophenyl}acetamido)-2-hydroxypropyl]acetamido}-N1,N3-bis(2,3-dihydroxypropyl)-2,4,6-triiodoisophthalamide)
CAS:255376-57-9
Aromatic cyclic amides (including cyclic carbamates) and their derivatives; salts thereof
Formula:
C32H38I6N6O13
Color and Shape:
White Off-White Powder
Molecular weight:
1475.67652
Ref: 45-1343561
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 |
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 |
Frovatriptan Related Compound A ((R)-3-Amino-2,3,4,9-tetrahydro-1H-carbazole-6-carboxamide)
Aromatic or modified aromatic drugs with nitrogen hetero
Formula:
C13H15N3O
Molecular weight:
229.12151
Ref: 45-1286424
20mg | 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 |
Rabeprazole Related Compound A (Disodium 1-benzimidazol-2-yl-3-methyl-4-oxo-1,4-dihydropyridine-2-carboxylate)
Compounds containing an unfused pyridine ring in the structure, nesoi
Formula:
C14H9N3Na2O3
Color and Shape:
Off-White Yellow Powder
Molecular weight:
313.04393
Ref: 45-1598020
25mg | Discontinued | Request information |
Thioridazine Related Compound F (2-(Methylthio)-10-[2-(piperidin-2-yl)ethyl]-10H-phenothiazine hydrochloride) (DISCONTINUED)
CAS:13002-81-8
Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, nesoi
Formula:
C20H24N2S2HCl
Color and Shape:
Pale Green Light Blue Powder
Molecular weight:
356.13809
Ref: 45-1663063
20mg | Discontinued | Request information |
Iscotrizinol Related Compound I (Bis(2-ethylhexyl) 4,4'-{[6-({4-[(4-{[(2-ethylhexyl)oxy]carbonyl}phenyl)carbamoyl]phenyl}amino)-1,3,5-triazine-2,4-diyl]bis(azanediyl)}dibenzoate) (DISCONTINUED)
Compounds (excluding melamine) containing an unfused triazine ring (whether or not hydrogenated) in the structure
Formula:
C55H71N7O7
Color and Shape:
White Powder
Molecular weight:
941.5415
Ref: 45-1193447
25mg | Discontinued | Request information |