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.

20
- 50
- 100
- 200

products per page. 6725 products on this category.

Product data	Purity	Price range	Estimated delivery
Dronedarone Related Compound B ((5-Amino-2-butylbenzofuran-3-yl){4-[3-(dibutylamino)propoxy]phenyl}methanone, dihydrochloride) REF: 45-1228552CAS: 1309476-91-2	- - -	887.00 €	Tue 15 Oct 24
Phenobarbital Related Compound A (5-Ethyl-2,6-diimino-5-phenyltetrahydropyrimidin-4(1H)-one) REF: 45-1524012CAS: 69125-70-8	- - -	1,398.00 €	Tue 15 Oct 24
Rabeprazole Related Compound B (2-{[(1H-benzo[d]imidazol-2-yl)sulfinyl]methyl}-4-(3-methoxypropoxy)-3-methylpyridine 1-oxide) REF: 45-1598031CAS: 924663-38-7	- - -	1,477.00 €	Tue 15 Oct 24
Ticlopidine Related Compound B (5-(2-chlorobenzyl)-4-oxo-4,5,6,7-tetrahydrothieno-[3,2-c]pyridine) REF: 45-1667166CAS: 68559-55-7	- - -	496.00 €	Tue 15 Oct 24
Oxymetholone Related Compound B (17β-Hydroxy-1-hydroxymethylene-17α-methyl-5α-androstan-3-one) REF: 45-1487029	- - -	1,469.00 €	Tue 15 Oct 24
Guaiacol (2-Methoxyphenol) REF: 45-1300004CAS: 90-05-1	- - -	434.00 €	Tue 15 Oct 24
Galantamine Hydrobromide Related Compounds Mixture REF: 45-1287777	- - -	1,441.00 €	Tue 15 Oct 24
Sulfamethoxazole Related Compound F (4-amino-N-(3-methylisoxazol-5-yl)benzenesulfonamide) REF: 45-1631566CAS: 17103-52-5	- - -	1,477.00 €	Tue 15 Oct 24
Pergolide Sulfoxide ((8β)-8-[(Methylsulfinyl)methyl]-6-propyl-D-ergoline) REF: 45-1510867CAS: 72822-01-6	- - -	548.00 €	Tue 15 Oct 24
Desoximetasone Related Compound A (9-Fluoro-11β,21-dihydroxy-16α-methylpregna-4-ene-3,20-dione) REF: 45-1173519CAS: 432-54-2	- - -	1,328.00 €	Tue 15 Oct 24
Bisoctrizole Related Compound A (2-(2H-Benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl) phenol) REF: 45-1075688CAS: 3147-75-9	- - -	581.00 €	Tue 15 Oct 24
Budesonide Related Compound E (16α,17-[butylidenebis(oxy)]-11β,21-dihydroxypregna-1,4,14-triene-3,20-dione) REF: 45-1078245CAS: 131918-64-4	- - -	1,371.00 €	Tue 15 Oct 24
Epoprostenol Related Compound A (7-{(1R,2R,3R,5S)-3,5-Dihydroxy-2-[(S,E)-3-hydroxyoct-1-enyl]cyclopentyl}-6-oxoheptanoic acid) REF: 45-1237611CAS: 58962-34-8	- - -	1,542.00 €	Tue 15 Oct 24
Decitabine Related Compound D (Methyl 4-chlorobenzoate) REF: 45-1165248CAS: 1126-46-1	- - -	1,222.00 €	Tue 15 Oct 24
Sibutramine Related Compound C (N-{1-[1-(4-chlorophenyl)cyclobutyl]pentyl}-N,N-dimethylamine hydrochloride) REF: 45-1612878	- - -	815.00 €	Tue 15 Oct 24
Chlorpheniramine Related Compound C (3-(4-chlorophenyl)-N-methyl-3-(pyridin-2-yl)propan-1-amine maleate) REF: 45-1123146CAS: 22630-25-7	- - -	2,204.00 €	Tue 15 Oct 24
Prilocaine Related Compound B ((RS)-N-(4-methylphenyl)-2-(propylamino)propanamide) REF: 45-1561020CAS: 744961-76-0	- - -	1,477.00 €	Tue 15 Oct 24
Terazosin Related Compound B (1-(4-Hydroxy-6,7-dimethoxy-2-quinazolinyl)-4-[(tetrahydro-2-furanyl)carbonyl]piperazine) REF: 45-1643474CAS: 1177261-73-2	- - -	1,410.00 €	Tue 15 Oct 24
1-Mononitroglycerin REF: 45-1445571CAS: 624-43-1	- - -	1,328.00 €	Tue 15 Oct 24
Voriconazole Related Compound B ((2S, 3R)-2-(2,4-Difluorophenyl)-3-(5-fluoropyrimidin-4-yl)-1-(1H-1,2,4-triazol-1-yl)butan-2-ol) REF: 45-1718020CAS: 137234-63-0	- - -	1,477.00 €	Tue 15 Oct 24

+ info

Dronedarone Related Compound B ((5-Amino-2-butylbenzofuran-3-yl){4-[3-(dibutylamino)propoxy]phenyl}methanone, dihydrochloride)

CAS:1309476-91-2

Aromatic pesticides with oxygen hetero

Formula:

C₃₀H₄₂N₂O₃·2HCl

Color and Shape:

Solid

Molecular weight:

550.2729

Ref: 45-1228552

Estimated delivery in United States, on Tuesday 15 Oct 2024

+ info

Phenobarbital Related Compound A (5-Ethyl-2,6-diimino-5-phenyltetrahydropyrimidin-4(1H)-one)

CAS:69125-70-8

Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure, …

Formula:

C₁₂H₁₄N₄O

Color and Shape:

White Solid

Molecular weight:

230.11676

Ref: 45-1524012

Estimated delivery in United States, on Tuesday 15 Oct 2024

+ info

Rabeprazole Related Compound B (2-{[(1H-benzo[d]imidazol-2-yl)sulfinyl]methyl}-4-(3-methoxypropoxy)-3-methylpyridine 1-oxide)

CAS:924663-38-7

Aromatic or modified aromatic drugs with nitrogen hetero-atom(s) only, not elsewhere specified or included

Formula:

C₁₈H₂₁N₃O₄S

Color and Shape:

White Powder

Molecular weight:

375.12528

Ref: 45-1598031

Estimated delivery in United States, on Tuesday 15 Oct 2024

+ info

Ticlopidine Related Compound B (5-(2-chlorobenzyl)-4-oxo-4,5,6,7-tetrahydrothieno-[3,2-c]pyridine)

CAS:68559-55-7

Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, nesoi

Formula:

C₁₄H₁₂ClNOS

Color and Shape:

White Powder

Molecular weight:

277.03281

Ref: 45-1667166

Estimated delivery in United States, on Tuesday 15 Oct 2024

+ info

Oxymetholone Related Compound B (17β-Hydroxy-1-hydroxymethylene-17α-methyl-5α-androstan-3-one)

Ketone-alcohols and ketone-aldehydes, nesoi

Formula:

C₂₁H₃₂O₃

Color and Shape:

Off-White Light Yellow Solid

Molecular weight:

332.23514

Ref: 45-1487029

Estimated delivery in United States, on Tuesday 15 Oct 2024

+ info

Guaiacol (2-Methoxyphenol)

CAS:90-05-1

Ether-phenols, ether-alcohol-phenols and their halogena

Formula:

C₇H₈O₂

Color and Shape:

Pale Yellow Liquid

Molecular weight:

124.13 g/mol

Ref: 45-1300004

Estimated delivery in United States, on Tuesday 15 Oct 2024

+ info

Galantamine Hydrobromide Related Compounds Mixture

Diagnostic or lab reagents on a backing, prepared diagnostic or lab reagents whether or not …

Color and Shape:

White Powder

Ref: 45-1287777

Estimated delivery in United States, on Tuesday 15 Oct 2024

+ info

Sulfamethoxazole Related Compound F (4-amino-N-(3-methylisoxazol-5-yl)benzenesulfonamide)

CAS:17103-52-5

Sulfonamides, nesoi

Formula:

C₁₀H₁₁N₃O₃S

Color and Shape:

Beige Light Brown Powder

Molecular weight:

253.05211

Ref: 45-1631566

Estimated delivery in United States, on Tuesday 15 Oct 2024

+ info

Pergolide Sulfoxide ((8β)-8-[(Methylsulfinyl)methyl]-6-propyl-D-ergoline)

CAS:72822-01-6

Alkaloids of rye ergot and their derivatives; salts thereof, nesoi

Formula:

C₁₉H₂₆N₂OS

Color and Shape:

Powder

Molecular weight:

330.17658

Ref: 45-1510867

Estimated delivery in United States, on Tuesday 15 Oct 2024

+ info

Desoximetasone Related Compound A (9-Fluoro-11β,21-dihydroxy-16α-methylpregna-4-ene-3,20-dione)

CAS:432-54-2

Halogenated derivatives of adrenal cortical hormones

Formula:

C₂₂H₃₁FO₄

Color and Shape:

Off-White Beige Solid

Molecular weight:

378.22064

Ref: 45-1173519

Estimated delivery in United States, on Tuesday 15 Oct 2024

+ info

Bisoctrizole Related Compound A (2-(2H-Benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl) phenol)

CAS:3147-75-9

Heterocyclic compounds with nitrogen hetero-atom(s) only, aromatic or modified aromatic, nesoi

Formula:

C₂₀H₂₅N₃O

Color and Shape:

Solid

Molecular weight:

323.19976

Ref: 45-1075688

Estimated delivery in United States, on Tuesday 15 Oct 2024

+ info

Budesonide Related Compound E (16α,17-[butylidenebis(oxy)]-11β,21-dihydroxypregna-1,4,14-triene-3,20-dione)

CAS:131918-64-4

Adrenal cortical hormones and their derivatives nesoi

Formula:

C₂₅H₃₂O₆

Color and Shape:

Powder

Molecular weight:

428.21989

Ref: 45-1078245

Estimated delivery in United States, on Tuesday 15 Oct 2024

+ info

Epoprostenol Related Compound A (7-{(1R,2R,3R,5S)-3,5-Dihydroxy-2-[(S,E)-3-hydroxyoct-1-enyl]cyclopentyl}-6-oxoheptanoic acid)

CAS:58962-34-8

Prostaglandins, thromboxanes and leukotrienes, their derivatives and structural analogues

Formula:

C₂₀H₃₄O₆

Color and Shape:

White Powder

Molecular weight:

370.23554

Ref: 45-1237611

Estimated delivery in United States, on Tuesday 15 Oct 2024

+ info

Decitabine Related Compound D (Methyl 4-chlorobenzoate)

CAS:1126-46-1

Aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacid and their derivatives not elsewhere specified or …

Formula:

C₈H₇ClO₂

Color and Shape:

White Yellow Powder

Molecular weight:

170.01346

Ref: 45-1165248

Estimated delivery in United States, on Tuesday 15 Oct 2024

+ info

Sibutramine Related Compound C (N-{1-[1-(4-chlorophenyl)cyclobutyl]pentyl}-N,N-dimethylamine hydrochloride)

Aromatic monoamines not elsewhere specified or included

Formula:

C₁₇H₂₆ClN·HCl

Color and Shape:

White Crystalline Powder

Molecular weight:

316.3

Ref: 45-1612878

Estimated delivery in United States, on Tuesday 15 Oct 2024

+ info

Chlorpheniramine Related Compound C (3-(4-chlorophenyl)-N-methyl-3-(pyridin-2-yl)propan-1-amine maleate)

CAS:22630-25-7

Compounds containing an unfused pyridine ring in the structure, nesoi

Formula:

C₁₉H₂₁ClN₂O₄

Color and Shape:

Off-White Powder

Molecular weight:

376.11898

Ref: 45-1123146

Estimated delivery in United States, on Tuesday 15 Oct 2024

+ info

Prilocaine Related Compound B ((RS)-N-(4-methylphenyl)-2-(propylamino)propanamide)

CAS:744961-76-0

Aromatic cyclic amides (including cyclic carbamates) and their derivatives; salts thereof

Formula:

C₁₃H₂₀N₂O

Color and Shape:

Off-White White Solid

Molecular weight:

220.15756

Ref: 45-1561020

Estimated delivery in United States, on Tuesday 15 Oct 2024

+ info

Terazosin Related Compound B (1-(4-Hydroxy-6,7-dimethoxy-2-quinazolinyl)-4-[(tetrahydro-2-furanyl)carbonyl]piperazine)

CAS:1177261-73-2

Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, nesoi

Formula:

C₁₉H₂₄N₄O₅

Color and Shape:

White Powder

Molecular weight:

388.17467

Ref: 45-1643474

Estimated delivery in United States, on Tuesday 15 Oct 2024

+ info

1-Mononitroglycerin

CAS:624-43-1

Esters of other inorganic acids of nonmetals & their salts, their halogenated/sulfonated/nitrated/nitrosated derivs, except of …

Formula:

C₃H₇NO₅

Color and Shape:

Clear Colorless Liquid

Molecular weight:

137.03242

Ref: 45-1445571

Estimated delivery in United States, on Tuesday 15 Oct 2024

+ info

Voriconazole Related Compound B ((2S, 3R)-2-(2,4-Difluorophenyl)-3-(5-fluoropyrimidin-4-yl)-1-(1H-1,2,4-triazol-1-yl)butan-2-ol)

CAS:137234-63-0

Drugs with nitrogen hetero-atom(s) only, aromatic or modified aromatic, nesoi

Formula:

C₁₆H₁₄F₃N₅O

Color and Shape:

White Off-White Crystalline Powder

Molecular weight:

349.11504

Ref: 45-1718020

Estimated delivery in United States, on Tuesday 15 Oct 2024

+ info