Impurities and Metabolites

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Chemical Impurities

Catalog No. Product Name Enrichment
Quantity Price
65048 "6-Fulvestrant
1 mg $725   Add to Cart
10 mg $2,800   Add to Cart
84865 4,5-Dehydro Pregabalin Formate
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62695 Acarbose D-Fructose 1,6,6’’,6’’’’’’-Tetra-tert- butyldimethylsilyloxymethyl Ester
1 mg $650   Add to Cart
10 mg $2,200   Add to Cart
62694 Acarbose D-Fructose Impurity
Synonyms:
Acarbose impurity A; Acarbose EP impurity A;
1 mg $490   Add to Cart
5 mg $1,490   Add to Cart
18991 Acetaminophen Acetate (Acetaminophen Impurity)
Synonyms:
N-[4-(Acetyloxy)phenyl]acetamide; 4’-Hydroxyacetanilide Acetate; 4’-Acetoxyacetanilide; 4-Acetamidophenyl Acetate; O-Acetylparacetamol; p-Acetamidophenyl Acetate; p-Acetoxyacetanilide; NSC 33893; NSC 6083; Paracetamol Impurity H;
1 g $875   Add to Cart
10 g $2,000   Add to Cart
62719 20α-Acetoxy-4-pregnen-3-one
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38450 3-(Acetylmethylamino)-1-propanesulfonic Acid Calcium Salt
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62766 17-(Acetyloxy)-3-ethoxy-pregna-3,5-dien-20-one
250 mg $650   Add to Cart
2.5 g $2,200   Add to Cart
6212 Acetylsalicylsalicylic Acid
Synonyms:
2-(Acetyloxy)benzoic Acid 2-Carboxyphenyl Ester; Acesalum; Diplosal Acetate; Diplosalacetat; Salicylacetylsalicylic Acid; Acetysalicyclic acid impurity C; Aspirin Impurity D;
10 mg $860   Add to Cart
50 mg $1,880   Add to Cart
62870 5-Amino-2-carboxy-4-cyano-3-thiopheneacetic Acid
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53860 5-Amino-3-(4-sulfonylphenyl)salicyclic Acid
Synonyms:
Mesalamine Impurity P;
10 mg $2,100   Add to Cart
62898 [2-[2-Amino-3-hydroxy-2-(hydroxymethyl)propoxy]-1-hydroxypropyl] phosphonic Acid
Synonyms:
Fosfomycin EP-Impurity B;
0.25 mg $590   Add to Cart
1 mg $1,790   Add to Cart
62897 2-Amino-3-hydroxy-2-(hydroxymethyl)propyl Phosphate Barium Salt
10 mg $650   Add to Cart
100 mg $2,200   Add to Cart
89361 N-[4-[3-[2-Amino-4-(formylamino)-1,6-dihydro-6-oxo-5-pyrimidinyl] -3-oxopropyl]benzoyl]-L-glutamic Acid
Synonyms:
Pemetrexed Seco-indolone;
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62862 (1R,3S)-3-[2-Amino-6-(cyclopropylamino)-9H-purin-9-yl] cyclopentanemethanol
5 mg $675   Add to Cart
50 mg $2,400   Add to Cart
D62863 (1R,3S)-3-[2-Amino-6-(cyclopropylamino)-9H-purin-9-yl] cyclopentanemethanol-d4
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62891 2-Amino-7-ethyl-4(3H)-pteridinone
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78471 4-Amino-N-((4-benzyl-2-morpholinyl)-methyl)-5-chloro-2- ethoxybenzamide
Synonyms:
Cisapride Related Compound; Mosapride Impurity E;
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32288 4-Aminophenol
Synonyms:
Acetaminophen Impurity K;
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D1283 4-Aminophenol-d7 97%D
0.5 g $865   Add to Cart
1 g $1,550   Add to Cart
63182 Bis(3-Aminophenyl) Sulfone
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19900 (Z)-2-(2-Aminothiazol-4-yl)-N-(2,2-dihydroxyethyl)-2- (hydroxyimino)acetamide
Synonyms:
(Z)-2-Amino-N-(2,2-dihydroxyethyl)-α-(hydroxyimino)-4- thiazoleacetamide;
5 mg $890   Add to Cart
50 mg $2,620   Add to Cart
62957 Amylostatin XG 1-Thiophenyl Nonaacetate
10 mg $650   Add to Cart
25 mg $800   Add to Cart
100 mg $2,175   Add to Cart
62958 Amylostatin XG Octaacetate
25 mg $675   Add to Cart
100 mg $1,025   Add to Cart
250 mg $2,050   Add to Cart
62959 Amylostatin XG Octamethoxybenzyl Ether
1 mg $625   Add to Cart
5 mg $750   Add to Cart
25 mg $1,250   Add to Cart
62969 9,10-Anhydro-8-desacetyl-8-carboxy Daunorubicin HCl
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18406 Atorvastatin oxirane impurity
Synonyms:
3-(4-Fluorobenzoyl)-2-isobutyryl-3-phenyloxirane-2-carboxylic Acid Phenylamide;
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63036 (+/-)-Atovaquone Impurity C
Synonyms:
Atovaquone EP Impurity C; Didehydro Atovaquone; Didehydroatovaquone;
5 mg $690   Add to Cart
D63037 (+/-)-Atovaquone Impurity C-d5
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63081 Beclomethasone 21-Butyrate 17-Propionate
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63128 Benzyl Hydroxy(4-phenylbutyl)phosphinoacetate
1 g $620   Add to Cart
10 g $1,460   Add to Cart
63141 [1-[(Benzyloxy)methyl]cyclopropyl]methanol
250 mg $625   Add to Cart
2.5 g $2,000   Add to Cart
63161 Betamethasone 17-Butyrate
100 mg $625   Add to Cart
1 g $2,000   Add to Cart
63162 Betamethasone 17-Butyrate 21-O-Tosyl
50 mg $650   Add to Cart
500 mg $2,200   Add to Cart
63160 Betamethasone 17-Propionate 21-Mesylate
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63159 Betamethasone Cyclic 17,21-(Ethyl Orthopropionate)
10 mg $640   Add to Cart
100 mg $2,120   Add to Cart
63212 Bisdescarboxy Ranelate
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63287 6α-Bromo Beclomethasone Dipropionate
5 mg $675   Add to Cart
50 mg $2,400   Add to Cart
63288 6β-Bromo Beclomethasone Dipropionate
10 mg $640   Add to Cart
100 mg $2,120   Add to Cart
63290 6-Bromo-betamethasone 17,21-Dipropionate
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63377 (E)-4-((tert-Butyldimethylsilyl)oxy)but-2-enoic Acid Benzyl Ester
50 mg $625   Add to Cart
500 mg $2,000   Add to Cart
63397 16α,17-[(1RS)-Butylidenebis(oxy)]-11β-hydroxy-17- (hydroxymethyl)-D-homoandrosta-1,4-diene-3,17a-dione (Mixture of Diastereomers)
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63457 10-Camphorsulfonic Acid Ethyl Ester
1 g $640   Add to Cart
10 g $2,120   Add to Cart
63477 2,2’’-[Carbonylbis(thio)]bisethanesulfonic Acid Dipotassium Salt
10 mg $675   Add to Cart
100 mg $2,400   Add to Cart
D63478 2,2’’-[Carbonylbis(thio)]bisethanesulfonic Acid-d8 Disodium Salt
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63492 21-Carboxylic Acid Fluticasone Dimer Impurity
2.5 mg $675   Add to Cart
10 mg $1,125   Add to Cart
25 mg $2,250   Add to Cart
55477 delta2-Ceftazidime
Synonyms:
Ceftazidime Impurity A;
1 mg $640   Add to Cart
10 mg $2,120   Add to Cart
44566 Chlorhexidine digluconate impurity N
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63690 Chlorhexidine DiHCl Impurity B
1 mg $680   Add to Cart
10 mg $2,440   Add to Cart
63597 1-Chloro Dihydro Dutasteride
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63726 9-Chloro Triamcinolone Acetonide 21-Acetate
1 mg $625   Add to Cart
10 mg $2,000   Add to Cart
63626 (11β,16α,17α)-9-Chloro-17-(2,2-dioxido-5H-1,2- oxathiol-4-yl)-17-[(2-furanylcarbonyl)oxy]-11-hydroxy-16-methyl- androsta-1,4-dien-3-one;
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63627 (16α)-21-Chloro-17-[(2-furanylcarbonyl)oxy]-16-methyl-pregna- 1,4-diene-3,11,20-trione
2.5 mg $650   Add to Cart
25 mg $2,200   Add to Cart
D63653 4-[2-(5-Chloro-2-methoxybenzamido)ethyl]benzene Sulfonyl 1- Butylurea-d9
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63622 (11β)-21-Chloro-9-fluoro-11-hydroxy-16-methylpregna-1,4,16- triene-3,20-dione
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87268 6-α-Chloro-triamcinolone-acetonide acetate
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75615 3-Chloro-Vortioxetine Hydrobromide
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75616 3-Chloro-Vortioxetine Hydrobromide
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63588 1-(3-Chlorobenzoyl)-5-methoxy-2-methyl-1H-indole-3-acetic Acid Methyl Ester
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63589 1-(2-Chlorobenzoyl)-5-methoxy-2-methyl-1H-indole-3-acetic Acid Methyl Ester
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63885 2-(4-Chlorobutyl)-5-cyclohexylamino-2H-tetrazole
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63197 N,N-Bis(2-chloroethyl)-N’’,N’’’’-bis(3-hydroxypropyl)phosphoric Triamide
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63195 5-[Bis(2-chloroethyl)amino]-1-methyl-1H-benzimidazole-2-butanoic Acid Methyl Ester
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63645 3-Chloroindomethacin
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63687 4-Chlorophenyl Phenyl Sulfone
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77836 Citalopram carboxylic acid impurity
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77835 Citalopram chloromethyl quartenary ammonium salt
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77841 Citalopram descyano impurity oxalate
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77840 Citalopram dimethylaminobutanone dioxalate
Synonyms:
Citalopram Impurity G;
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77846 Citalopram hydrochloride EP impurity E
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77824 Citalopram related compound II
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77825 Citalopram related compound III
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77843 Citalopram related compound IV
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77833 Citalopram ring-opening impurity oxalate
Synonyms:
Citalopram alkene impurity oxalate;
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78710 Clarithromycin EP impurity A
Synonyms:
Clarithromycin F;
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78708 Clarithromycin EP Impurity B
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63807 N-Cyano-1-chloroformamidine
250 mg $650   Add to Cart
2.5 g $2,200   Add to Cart
63895 (1-(Cyanomethyl)cyclopropyl)methyl Methanesulfonate
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63823 (8S,13S,14S,17R)-3-Cyanomethyl-3-17-dihydroxy-13-methyl-2,3,4,6,7 ,8,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17- yl)acetonitrile
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63850 2-(2-Cyclohexyl-2-hydroxy-2-phenylacetyloxy)acetic Acid
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63833 N-Cyclohexyl-4-pentenamide
50 mg $625   Add to Cart
500 mg $2,000   Add to Cart
63832 1-Cyclohexyl-5-(3-butenyl)tetrazole
50 mg $650   Add to Cart
500 mg $2,200   Add to Cart
63884 1-Cyclohexyl-5-(4-chlorobutyl)amino-1H-tetrazole
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63871 Cyclopropanecarbonitrile
50 g $635   Add to Cart
500 g $2,080   Add to Cart
63878 N6-Cyclopropyl-9H-purine-2,6-diamine Methanolate
250 mg $650   Add to Cart
2.5 g $2,200   Add to Cart
D63879 N6-Cyclopropyl-9H-purine-2,6-diamine-d4 Methanolate
1 mg $650   Add to Cart
10 mg $2,200   Add to Cart
63872 N-Cyclopropylformamide
500 mg $650   Add to Cart
5 g $2,200   Add to Cart
65656 Iso Cyclosporin H
2.5 mg $675   Add to Cart
25 mg $2,400   Add to Cart
64207 N-De(4-sulfonamidophenyl)-NΒΌ-(4-sulfonamidophenyl)-4,5-dihydro- 5-hydroxy Celecoxib
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5385 7-Epi-10-Deacetyltaxol
0.1 g    Request Quote
0.5 g    Request Quote
63936 Decarbonyl Zolmitriptan DiHCl
10 mg $650   Add to Cart
100 mg $2,200   Add to Cart
63941 4-Dechloro-2-chloroindomethacin
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63942 4-Dechloro-3-chloroindomethacin
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50560 Deferasirox salicyloyl ester
Synonyms:
Deferasirox Impurity 1;
5 mg $990   Add to Cart
63980 21-Dehydro "7,9(11)-Dexamethasone
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63981 21-Dehydro "8(14),9(11)-Dexamethasone
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63960 21-Dehydro Alclometasone
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63977 21-Dehydro Beclomethasone
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63968 21-Dehydro Beclomethasone 17-Propionate
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63972 21-Dehydro Betamethasone
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63973 21-Dehydro Betamethasone 17-Propionate
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63971 21-Dehydro Betamethasone 17-Valerate
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63974 21-Dehydro Budesonide
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D63975 21-Dehydro Budesonide-d8
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63961 21-Dehydro Clocortolone
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63962 21-Dehydro Cloprednol
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63983 21-Dehydro Dexamethasone 17-Propionate
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63982 21-Dehydro Dexamethasone Hydrate
250 mg $650   Add to Cart
2.5 g $2,200   Add to Cart
63979 21-Dehydro Dichlorisone
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63995 21-Dehydro Diflorasone
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63996 5,6,7,8-Dehydro Finasteride
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63987 21-Dehydro Flumethasone
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63988 21-Dehydro Flunisolide
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63989 21-Dehydro Fluocortolone
Synonyms:
(6α,11β,16α)-6-Fluoro-11-hydroxy-16-methyl-3,20- dioxopregna-1,4-dien-21-al;
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63965 21-Dehydro Isoflupredone
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64011 21-Dehydro Meprednisone
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64012 21-Dehydro Prednisolone
10 mg $640   Add to Cart
100 mg $2,120   Add to Cart
64004 21-Dehydro Prednisolone 17-Ethyl Carbonate
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64015 21-Dehydro Triamcinolone
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39655 4,5-Dehydro(pyrimidin-2(1H)-one) lopinavir
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63992 5,6,7,8,9-Dehydro-10-desmethyl Finasteride
1 mg $660   Add to Cart
10 mg $2,280   Add to Cart
63963 21-Dehydro-11-deoxy Prednisolone
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64007 21-Dehydro-16α-hydroxy Prednisolone
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63966 21-Dehydro-16α-hydroxy Prednisone
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64002 21-Dehydro-16α-methyl-11-oxo Prednisolone
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64008 21-Dehydro-16β-hydroxy Prednisolone
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64000 9,11-Dehydro-17β-estradiol 17-valerate
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63964 21-Dehydro-6α-chloro Prednisone
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64001 21-Dehydro-6α-methyl Prednisolone
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64003 21-Dehydro-6α-methyl Prednisolone 17-Hemisuccinate
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64010 21-Dehydro-6α-methyl Prednisone
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64005 21-Dehydro-6β-hydroxy Dexamethasone
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64009 21-Dehydro-6β-methyl Prednisone
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66466 delta-5(6)-Norethindrone
1 mg $650   Add to Cart
10 mg $2,200   Add to Cart
66464 delta-5(6)-Norethindrone Acetate
10 mg $650   Add to Cart
100 mg $2,200   Add to Cart
64997 delta-9(11)-Fluorometholone Acetate
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64363 delta6-1,2-Dihydro Beclomethasone Dipropionate
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64213 delta8(9)-Dexamethasone
2.5 mg $650   Add to Cart
25 mg $2,200   Add to Cart
56382 N-Demethyl-N-formyl clarithromycin
Synonyms:
Clarithromycin EP Impurity H;
5 mg $390   Add to Cart
1 mg $149   Add to Cart
64031 4-Demethyltrimethoprim
10 mg $650   Add to Cart
100 mg $2,200   Add to Cart
64048 S-Deoxo "6-Fulvestrant
1 mg $675   Add to Cart
10 mg $2,400   Add to Cart
64045 S-Deoxo-3,17-bis-(O-tetrahydro-2H-pyran-2-yl)-6-hydroxy- fulvestrant
1 mg $640   Add to Cart
10 mg $2,120   Add to Cart
64046 S-Deoxo-3,17β-bis-(O-tetrahydro-2H-pyran-2-yl)-6-oxo- fulvestrant
5 mg $675   Add to Cart
50 mg $2,400   Add to Cart
64049 S-Deoxo-6-oxo-fulvestrant
2.5 mg $640   Add to Cart
25 mg $2,120   Add to Cart
64068 11-Deoxy Fusidic Acid
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8878 Deoxy Venlafaxine
1 mg $890   Add to Cart
5 mg $2,120   Add to Cart
56546 7,8-Desacetyl-9,10-dehydro daunorubicinone
Synonyms:
Doxorubicin Impurity 1;
0.5 mg $790   Add to Cart
64128 Descarbosy Ranelic Acid
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64097 9-Deschloro-9-bromo Beclomethasone Dipropionate
2.5 mg $650   Add to Cart
25 mg $2,200   Add to Cart
64109 17-Desethynyl 17-Dibromomethylaceto-norethindrone Acetate
100 mg $625   Add to Cart
1 g $2,000   Add to Cart
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