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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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products per page. 3227 products on this category.

BrandProduct dataPurityPrice rangeEstimated delivery
Biosynth logo
Doxorubicin Dimer Impurity-1
REF: 3D-ID176588
Min. 95%5,101.00 €~9,042.00 €Tue 18 Feb 25
USP logo
Iloperidone Related Compound A ([4'-(3-Chloropropoxy)-3'-methoxy]acetophenone) (DISCONTINUED)
REF: 45-1336250
CAS: 58113-30-7
- - -- - -Discontinued product
USP logo
Deacetylnorgestimate ((E)- and (Z)-17-deacetyl norgestimate mixture) (DISCONTINUED)
REF: 45-1471958
CAS: 53016-31-2
- - -- - -Discontinued product
USP logo
Cinacalcet Related Compound E
REF: 45-1133831
- - -- - -Discontinued product
USP logo
Thioridazine Related Compound F (2-(Methylthio)-10-[2-(piperidin-2-yl)ethyl]-10H-phenothiazine hydrochloride) (DISCONTINUED)
REF: 45-1663063
CAS: 13002-81-8
- - -- - -Discontinued product
USP logo
Valacyclovir Related Compound C (2-[(2-amino-6-oxo-1,6-dihydro-9H-purin-9-yl)methoxy]ethyl N-methyl-L-valinate hydrochloride)
REF: 45-1707855
CAS: 1346617-39-7
- - -- - -Discontinued product
USP logo
Iscotrizinol Related Compound B (4-[(4-{[4-(tert-butylcarbamoyl)phenyl]amino}-6-[(4-{[(2-ethylhexyl)oxy]carbonyl}phenyl)amino]-1,3,5-triazin-2-yl)amino]benzoic acid) (DISCONTINUED)
REF: 45-1193378
- - -- - -Discontinued product
USP logo
Montelukast Racemate
REF: 45-1446848
- - -- - -Discontinued product
USP logo
Iscotrizinol Related Compound C (2-Ethylhexyl 4-[(4-{[4-(tert-butylcarbamoyl)phenyl]amino}-6-chloro-1,3,5-triazin-2-yl)amino]benzoate) (DISCONTINUED)
REF: 45-1193389
- - -- - -Discontinued product
USP logo
Eprosartan Related Compound A ((E)-3-(2-butyl-1H-imidazol-5-yl)-2-(thiophen-2-ylmethyl)acrylic acid hydrochloride) (DISCONTINUED)
REF: 45-1238228
- - -- - -Discontinued product
USP logo
Cyclizine Related Compound A (1-methylpiperazine)
REF: 45-1154015
CAS: 109-01-3
- - -- - -Discontinued product
USP logo
Modafinil Related Compound B (2-[(diphenylmethyl)sulfonyl]acetamide) (DISCONTINUED)
REF: 45-1445357
CAS: 118779-53-6
- - -- - -Discontinued product
USP logo
Nisoldipine Related Compound E (3-Isobutyl 5-methyl 2,6-dimethyl-4-(2-nitrosophenyl)pyridine-3,5-dicarboxylate) (DISCONTINUED)
REF: 45-1464169
CAS: 87375-91-5
- - -- - -Discontinued product
USP logo
Cidofovir Related Compound B (1-[(S)-3-Hydroxy-2-(O,O-diethylphosphonomethoxy)propyl]cytosine hydrochloride)
REF: 45-1133886
- - -- - -Discontinued product
USP logo
2-Ethylhexan-1-ol (DISCONTINUED)
REF: 45-1265526
CAS: 104-76-7
- - -- - -Discontinued product
USP logo
Nisoldipine Related Compound D (3-Isobutyl 5-methyl 2,6-dimethyl-4-(2-nitrophenyl)pyridine-3,5-dicarboxylate) (DISCONTINUED)
REF: 45-1464158
CAS: 103026-83-1
- - -- - -Discontinued product
USP logo
Alclometasone Dipropionate Related Compound A (11β,17,21-trihydroxy-16α-methylpregna-1,4-diene-3,20-dione 17,21-dipropionate)
REF: 45-1012746
- - -- - -Discontinued product
USP logo
Iscotrizinol Related Compound D (2-Ethylhexyl 4-[(4,6-bis{[4-(tert-butylcarbamoyl)phenyl]amino}-1,3,5-triazin-2-yl)amino]benzoate) (DISCONTINUED)
REF: 45-1193390
- - -- - -Discontinued product
USP logo
Ticagrelor R,S-Cyclopropyl Isomer
REF: 45-1666979
- - -- - -Discontinued product
USP logo
Ethylhexyl Triazone Related Compound B (4-[(4,6-Bis[(4-{[(2-ethylhexyl)oxy]carbonyl}phenyl)amino]-1,3,5-triazin-2-yl)amino]benzoic acid) (DISCONTINUED)
REF: 45-1265559
- - -- - -Discontinued product
discount label

Doxorubicin Dimer Impurity-1


Ref: 3D-ID176588

10mg5,101.00 €
25mg9,042.00 €
Estimated delivery in United States, on Tuesday 18 Feb 2025
discount label

Iloperidone Related Compound A ([4'-(3-Chloropropoxy)-3'-methoxy]acetophenone) (DISCONTINUED)


Discontinued product
discount label

Deacetylnorgestimate ((E)- and (Z)-17-deacetyl norgestimate mixture) (DISCONTINUED)


Discontinued product
discount label

Cinacalcet Related Compound E


Ref: 45-1133831

Undefined sizeDiscontinuedRequest information
Discontinued product
discount label

Thioridazine Related Compound F (2-(Methylthio)-10-[2-(piperidin-2-yl)ethyl]-10H-phenothiazine hydrochloride) (DISCONTINUED)


Discontinued product
discount label

Valacyclovir Related Compound C (2-[(2-amino-6-oxo-1,6-dihydro-9H-purin-9-yl)methoxy]ethyl N-methyl-L-valinate hydrochloride)


Discontinued product
discount label

Iscotrizinol Related Compound B (4-[(4-{[4-(tert-butylcarbamoyl)phenyl]amino}-6-[(4-{[(2-ethylhexyl)oxy]carbonyl}phenyl)amino]-1,3,5-triazin-2-yl)amino]benzoic acid) (DISCONTINUED)


Discontinued product
discount label

Montelukast Racemate


Discontinued product
discount label

Iscotrizinol Related Compound C (2-Ethylhexyl 4-[(4-{[4-(tert-butylcarbamoyl)phenyl]amino}-6-chloro-1,3,5-triazin-2-yl)amino]benzoate) (DISCONTINUED)


Discontinued product
discount label

Eprosartan Related Compound A ((E)-3-(2-butyl-1H-imidazol-5-yl)-2-(thiophen-2-ylmethyl)acrylic acid hydrochloride) (DISCONTINUED)


Discontinued product
discount label

Cyclizine Related Compound A (1-methylpiperazine)


Discontinued product
discount label

Modafinil Related Compound B (2-[(diphenylmethyl)sulfonyl]acetamide) (DISCONTINUED)


Discontinued product
discount label

Nisoldipine Related Compound E (3-Isobutyl 5-methyl 2,6-dimethyl-4-(2-nitrosophenyl)pyridine-3,5-dicarboxylate) (DISCONTINUED)


Discontinued product
discount label

Cidofovir Related Compound B (1-[(S)-3-Hydroxy-2-(O,O-diethylphosphonomethoxy)propyl]cytosine hydrochloride)


Discontinued product
discount label

2-Ethylhexan-1-ol (DISCONTINUED)


Discontinued product
discount label

Nisoldipine Related Compound D (3-Isobutyl 5-methyl 2,6-dimethyl-4-(2-nitrophenyl)pyridine-3,5-dicarboxylate) (DISCONTINUED)


Discontinued product
discount label

Alclometasone Dipropionate Related Compound A (11β,17,21-trihydroxy-16α-methylpregna-1,4-diene-3,20-dione 17,21-dipropionate)


Discontinued product
discount label

Iscotrizinol Related Compound D (2-Ethylhexyl 4-[(4,6-bis{[4-(tert-butylcarbamoyl)phenyl]amino}-1,3,5-triazin-2-yl)amino]benzoate) (DISCONTINUED)


Discontinued product
discount label

Ticagrelor R,S-Cyclopropyl Isomer


Ref: 45-1666979

Undefined sizeDiscontinuedRequest information
Discontinued product
discount label

Ethylhexyl Triazone Related Compound B (4-[(4,6-Bis[(4-{[(2-ethylhexyl)oxy]carbonyl}phenyl)amino]-1,3,5-triazin-2-yl)amino]benzoic acid) (DISCONTINUED)


Discontinued product
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