Parent Category: Impurities and Metabolites

Chemical Impurities



Catalog No. Product Name Enrichment
Quantity Price
64436 3-(1,4-Dihydro-5-methyl-4-oxo-7-propylimidazo[5,1-f][1,2,4] triazin-2-yl)-4-ethoxybenzenesulfonic Acid
100 mg $290   Add to Cart
64390 20β-Dihydroprogesterone
10 mg $650   Add to Cart
100 mg $2,200   Add to Cart
65274 6,10-Dihydroxy norethindrone acetate
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64434 (6α,11β)-11,20-Dihydroxy-6-methyl-3-oxopregna-1,4,17(20) -trien-21-al
250 mg $650   Add to Cart
2.5 g $2,200   Add to Cart
64446 3,17-Dihydroxy-6-methyl-pregna-3,5-dien-20-one Diacetate
10 mg $650   Add to Cart
25 mg $800   Add to Cart
100 mg $1,400   Add to Cart
64451 3,5β-Dihydroxy-tetrahydro Canrenone Lactol (Mixture of Diastereomers)
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78830 1-α-25-Dihydroxycholecalciferol impurity 1
Synonyms:
1,25-Dihydroxy-7-dehydrocholesterol;
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78831 1-α-25-Dihydroxycholecalciferol impurity 2
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64445 P-[(1R,2R)-1,2-Dihydroxypropyl]-phosphonic Acid Ammonium Salt
50 mg $650   Add to Cart
500 mg $2,200   Add to Cart
D64485 N,α-Dimethyl-d3-1,4-cyclohexadiene-1-ethanamine
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64484 N,α-Dimethyl-1,4-cyclohexadiene-1-ethanamine
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64505 3,5-Dimethyl-1-adamantanol
100 mg $640   Add to Cart
1 g $2,120   Add to Cart
9658 2,2-Dimethyl-4-isopropyl-1,3-benzodioxole (Propofol Impurity L)
Synonyms:
2,2-Dimethyl-4-(1-methylethyl)-1,3-benzodioxole; Propofol Impurity L;
1 mg $925   Add to Cart
5 mg $2,400   Add to Cart
64569 2,2-Dimethyl-5-oxo-1,3-dioxolane-4-acetic Acid Phenylmethyl Ester
50 mg $650   Add to Cart
500 mg $1,250   Add to Cart
1 g $2,225   Add to Cart
65343 (17aα)-Hydroxy-6α,17a-dimethyl-D-homoandrost-3,5-diene-3, 17-dione 3,17-Diacetate
10 mg $625   Add to Cart
25 mg $750   Add to Cart
100 mg $1,250   Add to Cart
65346 (17aβ)-Hydroxy-6α,17a-dimethyl-D-homoandrost-4-ene-3,17- dione
100 mg $650   Add to Cart
1 g $2,200   Add to Cart
65344 (17aα)-Hydroxy-6α,17a-dimethyl-D-homoandrost-4-ene-3,17- dione 17-Acetate
10 mg $650   Add to Cart
100 mg $2,200   Add to Cart
D65345 (17aα)-Hydroxy-6α,17a-dimethyl-D-homoandrost-4-ene-3,17- dione 17-Acetate-d3
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64493 1,1-Dimethylcyclopentane
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64572 1-(2,6-Dimethylphenyl)-1,5,6,7-tetrahydro-2H-azepin-2-one
10 mg $675   Add to Cart
100 mg $2,400   Add to Cart
93908 4-(1,1-Dimethylpropyl)-β-methylbenzenepropanol-1- methanesulfonate
Synonyms:
2-Methyl-3-(4-(tert-pentyl)phenyl)propyl Methanesulfonate; Amorolfine Impurity F;
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110983 Dimetindene maleate EP impurity I
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9861 7-Epi-docetaxel (Docetaxel Impurity C)
Synonyms:
(2b,5b,7a,10b,13a)-4-Acetoxy-13-(((2R,3S)-3-[(tert-butoxycarbonyl )amino]-2-hydroxy-3-phenylpropanoyl)oxy)-1,7,10-trihydroxy- 9-oxo -5,20-epoxytax-11-en-2-yl Benzoate; 7-Epidocetaxel; 7-Epitaxotere; Docetaxel Impurity C;
5 mg $2,800   Add to Cart
9788 Docetaxel Impurity A
Synonyms:
(2b,5b,7a,10b,13a)-4-Acetoxy-13-(((2R,3S)-3-[(tert-butoxycarbonyl )amino]-2-hydroxy-3-phenylpropanoyl)oxy)-1,7,10-trihydroxy- 9-oxo -5,20-epoxytax-11-en-2-yl (2E)-2-Methylbut-2-enoate; 2-Desbenzoyl-2-tiglyl Docetaxel;
1 mg $790   Add to Cart
5 mg $2,490   Add to Cart
79229 Dolutegravir Impurity 6
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94172 Doxorubicin dimer
Synonyms:
(S,R,R,S,8S,8’S,10S,10’S)-8,8’-(4-Hydroxy-2-(hydroxymethyl)-1,3- dioxolane-2,4-diyl)bis(10-(((2R,4S,5R,6S)-4-amino-5-hydroxy-6- methyltetrahydro-2H-pyran-2-yl)oxy)-6,8,11-trihydroxy-1-methoxy-7 ,8,9,10-tetrahydrotetracene-5,12-dione);;
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65349 5’’-Hydroxy Drospirenone
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65351 5β-Hydroxy Drospirenone
10 mg $700   Add to Cart
100 mg $2,600   Add to Cart
64691 Drospirenone 3,5’-Diol (Mixture of Diastereomers)
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64692 Drospirenone 3,5,5’’-Triol
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64690 Drospirenone 5,5’’-Diol
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C65350 5’’-Hydroxy Drospirenone-13C3
   Request Quote
64698 5β-Dutasteride
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64699 17α-Dutasteride
1 mg $675   Add to Cart
10 mg $2,400   Add to Cart
64618 9-(2,5-d|Dioxo-L-3-amino-1-pyrrolidineacetic acid)-10-deglycine Daptomycin
Synonyms:
Daptomycin Impurity 8;
0.5 mg $490   Add to Cart
9843 Eletriptan N-oxide
Synonyms:
3-[[(2R)-1-Methyl-2-pyrrolidinyl]methyl]-5-[2-(phenylsulfonyl) ethyl]-1H-indole N Oxide;
1 mg $890   Add to Cart
5 mg $2,120   Add to Cart
64751 (9β,11β)-Epoxy Fluorometholone Acetate
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8098 (4-Carboxy-3-ethoxy)phenyl Acetic Acid (Repaglinide Impurity)
Synonyms:
4-Carboxy-3-ethoxybenzeneacetic Acid;
5 mg $900   Add to Cart
25 mg $2,200   Add to Cart
94570 Ethyl 4-(8-chloro-11H-benzo[5,6]cyclohepta[1,2-β]pyridin-11- ylidene)piperidine-1-carboxylate
Synonyms:
4-(8-Chloro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-ylidene)-1- piperidinecarboxylic Acid Ethyl Ester; Dehydro Loratadine Isomer B;;
5 mg $690   Add to Cart
64791 Ethyl 5-(3,3-Dimethylguanidino)-2-hydroxypentanoate
1 mg $650   Add to Cart
5 mg $1,075   Add to Cart
25 mg $3,250   Add to Cart
64937 Ethyl Quetiapine Fumarate Salt
250 mg $650   Add to Cart
2.5 g $2,200   Add to Cart
D64938 Ethyl Quetiapine-d5
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86547 Ethyl tenofovir impurity
1 mg $690   Add to Cart
9906 3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-α]pyrimidin -4-one (Risperidone Impurity)
Synonyms:
3-Ethyl-6,7,8,9-tetrahydro-2-methyl-4H-pyrido[1,2-α]pyrimidin -4-one; Risperidone Impurity;
2.5 mg $890   Add to Cart
12.5 mg $2,120   Add to Cart
64887 (17α)-(+/-)-13-Ethyl-3-methoxy-18,19-dinorpregna-2,5(10)-dien -20-yn-17-ol (Levonorgestrel Impurity T)
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97834 exo-5,6-Oxi-2,3-norbornanedicarboxamide
Synonyms:
(1aR,2R,2aS,5aR,6S,6aS)-Tetrahydro-1aH-2,6-methanooxireno[2,3-f] isoindole-3,5(4H,5aH)-dione; Lurasidone impurity;
100 mg $390   Add to Cart
64961 (3’’S)-ent-Ezetimibe
5 mg $650   Add to Cart
50 mg $2,200   Add to Cart
79984 Ezetimibe Impurity 1 ((3’S,3R,4S)-Desfluoro Ezetimibe)
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79997 Ezetimibe Impurity 4
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80014 Ezetimibe impurity (3-[5-(4-Fluoro-phenyl)-5-(R)-hydroxy- pentanoyl]-4-(S)-phenyl-oxazolidin-2-one)
   Request Quote
80015 Ezetimibe impurity (3-[5-(4-Fluoro-phenyl)-5-(S)-hydroxy- pentanoyl]-4-(R)-phenyl-oxazolidin-2-one)
   Request Quote
80018 Ezetimibe Related Impurity 6
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80024 Ezetimibe Impurity 8 Enantiomer
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45011 Famciclovir N7-isomer
Synonyms:
N9-Des(4-acetoxy-3-(acetoxymethyl)but-1-yl) N7-[4-acetoxy-3- (acetoxymethyl)but-1-yl] Famciclovir; 7-[4-Acetoxy-3- (acetoxymethyl)but-1-yl]-2-aminopurin; BRL 48428;
5 mg $990   Add to Cart
64972 5β-Finasteride
5 mg $890   Add to Cart
80988 Fingolimod Impurity 2
1 mg $490   Add to Cart
10258 Florfenicol Dimer Impurity
1 mg $890   Add to Cart
5 mg $2,120   Add to Cart
64984 Flumethasone-"17,20 21-Aldehyde
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80816 Fluocinolone acetonide impurity K
Synonyms:
4-Fluorotriamcinolone Acetonide;
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58097 4-(4-Fluorobenzoyl)-3-hydroxymethylbenzonitrile
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64996 Fluorometholone 11,17-Diacetate
10 mg $650   Add to Cart
100 mg $2,200   Add to Cart
64998 Fluorometholone Acetate 6,9(11)-diene Impurity
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65009 3’’-(2-Fluorophenyl) Ezetimibe
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94953 Fluphenazine sulphone
Synonyms:
4-[3-[5,5-Dioxido-2-(trifluoromethyl)-10H-phenothiazin-10-yl] propyl]-1-piperazineethanol; 4-[3-[2-(Trifluoromethyl)-10H- phenothiazin-10-yl]propyl]-1-piperazineethanol S,S-Dioxide; Fluphenazine Impurity B (EP);
1 mg $190   Add to Cart
65029 Fluticasone 17β-Carbonylsulfenic Acid 17-Propionate
10 mg $650   Add to Cart
100 mg $2,200   Add to Cart
65030 Fluticasone dimer impurity
Synonyms:
(6α,11β,16α,17α)-6,9-difluoro-11,17-dihydroxy-16- methyl-3-oxo-Androsta-1,4-diene-17-carboxylic Acid (6α,11β, 16α,17α)-6,9-difluoro-17-[[(fluoromethyl)thio]carbonyl]-11- hydroxy-16-methyl-3-oxoandrosta-1,4-dien-17-yl Ester; Fluticasone Impurity G;
0.5 mg $590   Add to Cart
10395 Fluvoxamine Maleic Acid Monoamide (Fluvoxamine Maleate Impurity)
Synonyms:
5-Methoxy-1-[4-(trifluoromethyl)phenyl]-1-pentanone-(E)-O-(2- aminoethyl]oxime Maleic Acid Monoamide; Fluvoxamine Maleate Impurity;
1 mg $875   Add to Cart
5 mg $2,000   Add to Cart
19177 Acetyl 2-[(2-Formamide-1,6-dihydro-6-chloro-9H-purin-9yl)methoxy] ethyl Ester
10 mg $890   Add to Cart
100 mg $2,620   Add to Cart
65036 N-Formyl-L-leucine(1S)-1-[(2S,3S)-2-hydroxy-3-[(R)-1- phenylethylcarbomoyl)]nonyl]dodecyl ester
Synonyms:
Orlistat impurity;
0.5 mg $390   Add to Cart
D81341 Ganciclovir impurity D
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65072 Ganirelix Acetate Impurity B
Synonyms:
Ac-D-Nal-D-p-Cl-Phe-D-Pal-Ser(tBu)-Tyr(tBu)-OH;
   Request Quote
65093 5(6)-Gestodene
   Request Quote
65103 ortho Gliclazide
   Request Quote
65167 Guaninyl Valacyclovir
   Request Quote
81519 Hexoprenaline Impurity 2
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65238 3-Hexyldihydro-6-undecyl-2H-pyran-2,4(3H)-dione
250 mg $650   Add to Cart
2.5 g $2,200   Add to Cart
75801 4-Hydroxy biphenyl sulfate sodium salt
Synonyms:
4-Phenylphenol sulfate sodium salt; 4-Biphenylyl sulfate sodium salt;
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58724 (S)-3’-Hydroxy coclaurine hydrochloride
1 mg $490   Add to Cart
82710 2-(4-(4-Hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl)acetamide
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82711 2-(4-(4-Hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl)acetic acid
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95842 2-Hydroxy-5-oxo-1-cyclopentene-1-heptanoic Acid
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58865 (S)-3’-Hydroxy-N-methylcoclaurine hydrochloride
0.5 mg $590   Add to Cart
65513 4-Hydroxybutanesulfonate Sodium Salt (Technical Grade)
500 mg $650   Add to Cart
5 g $2,200   Add to Cart
95893 N-(4-Hydroxycyclohexyl)-2-methyl-3-oxopentanamide
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80161 6-beta-Hydroxyestradiol
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D78248 2-(2-Hydroxyethyl)-1-methylpyrrolidine
Synonyms:
Clemastine Fumarate Impurity D;
5 g $290   Add to Cart
65358 9-(2-Hydroxyethyl)guanine
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65476 6(α/β)-Hydroxymethyl Megestrol Acetate (Megestrol Acetate Impurity)(Mixture of Diastereomers)
1 mg $650   Add to Cart
10 mg $2,200   Add to Cart
65438 20-Hydroxymethyl Prednisone(Mixture of Diastereomers)
10 mg $675   Add to Cart
100 mg $2,400   Add to Cart
65408 1-(Hydroxymethyl)-cyclohexaneethanol Benzyl Ether
25 mg $640   Add to Cart
250 mg $2,120   Add to Cart
65399 2-Hydroxy-2-(1-(hydroxymethyl)cyclopropyl)acetonitrile Benzyl Ester
100 mg $650   Add to Cart
1 g $2,200   Add to Cart
81635 2-Hydroxypropyl 2-(4-isobutylphenyl)propanoate
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81622 cis-Ibuprofen impurity G
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65594 4-Imino-4-methoxybutanoic Acid Methyl Ester HCl
1 g $610   Add to Cart
2.5 g $625   Add to Cart
10 g $875   Add to Cart
41030 6,6’-Iminobis(N,N,N-trimethyl-1-hexanaminium) dibromide hydrobromide
Synonyms:
Colesevelam Amino Dihexylquat Impurity HBr; Amino Dihexyltrimethylammonium Bromide HBr;
1 mg $390   Add to Cart
81754 Indacaterol Impurity 1
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81755 Indacaterol Impurity 2
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81756 Indacaterol Impurity 3
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65603 Indomethacin Diamide
10 mg $675   Add to Cart
100 mg $2,400   Add to Cart
63645 Indomethacin EP Impurity G
Synonyms:
3-Chloroindomethacin; 2-(1-(3,4-dichlorobenzoyl)-5-methoxy-2-methyl-1H-indol-3-yl) acetic acid;
1 mg $590   Add to Cart
81629 2-(4-Isobutylphenyl)propionitrile
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59251 Isofurosemide
Synonyms:
Furosemide Impurity A;
10 mg $190   Add to Cart
50 mg $590   Add to Cart
65672 3-[4-[2-Isopropoxyethoxy)methyl]phenoxy]-1,2-propanediol
25 mg $650   Add to Cart
250 mg $2,200   Add to Cart
D65673 3-[4-[2-Isopropoxyethoxy)methyl]phenoxy]-1,2-propanediol-d5
2.5 mg $650   Add to Cart
25 mg $2,200   Add to Cart
65675 rac Isopropyl (+/-)-10-camphorsulfate
500 mg $625   Add to Cart
5 g $2,000   Add to Cart
D70979 rac Isopropyl (+/-)-10-camphorsulfate-d7
10 mg $675   Add to Cart
100 mg $2,400   Add to Cart
65674 Isopropyl (1R)-(+)-10-camphorsulfate
Synonyms:
Isopropyl ((1S,4S)-7,7-dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl) methanesulfonate;
100 mg $590   Add to Cart
D70977 Isopropyl (1R)-(+)-10-Camphorsulfate-d7
10 mg $650   Add to Cart
100 mg $2,200   Add to Cart
11233 2-Isopropyl-6-propylphenol (Propofol Impurity O)
Synonyms:
2-(1-Methylethyl)-6-propylphenol; Propofol Impurity O;
5 mg $890   Add to Cart
25 mg $2,120   Add to Cart
81743 Istradefylline dimer impurity 1
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81595 Itraconazole ethylene impurity
   Request Quote
81601 cis-Itraconazole ethylene impurity
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65710 Ivermectin B1 aglycon
1 mg $490   Add to Cart
65730 6-Keto Fulvestrant
2.5 mg $675   Add to Cart
25 mg $2,400   Add to Cart
82774 Levamisole impurity B
1 mg $290   Add to Cart
82523 Levonorgestrel impurity A
1 mg $690   Add to Cart
47120 Linagliptin Impurity
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111299 Linagliptin impurity 36
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47135 Loratadine impurity F
10 mg $390   Add to Cart
82948 Marbofloxacin EP Impurity F
Synonyms:
Marbofloxacin EP Impurity F, Marbofloxacin Impurity 6(Marbofloxacin EP Impurity F), Marbofloxacin N-oxide; 9-Fluoro-2,3-dihydro-3-methyl-10-(4-methyl-4-oxido-1-piperazinyl) -7-oxo-7H-pyrido[3,2,1-ij][4,1,2]benzoxadiazine-6-carboxylic acid;
10 mg $790   Add to Cart
65386 6α-Hydroxy Medroxy Progesterone 17-Acetate
10 mg $675   Add to Cart
100 mg $2,400   Add to Cart
53860 Mesalamine Impurity P
Synonyms:
5-Amino-3-(4-sulfonylphenyl)salicyclic acid;
1 mg $890   Add to Cart
65968 (7β,17β)-3-Methoxy-7-methyl-estra-1,3,5(10)-trien-17-ol
2 mg $680   Add to Cart
20 mg $2,440   Add to Cart
65969 (7α,17β)-3-Methoxy-7-methyl-estra-1,3,5(10)-trien-17-ol
20 mg $650   Add to Cart
200 mg $2,200   Add to Cart
65967 3-Methoxy-7α-methyl-estra-2,5(10)-dien-17-one
10 mg $610   Add to Cart
100 mg $1,380   Add to Cart
65965 3-Methoxy-7α-methyl-estra-2,5(10)-dien-17β-ol
20 mg $680   Add to Cart
200 mg $2,440   Add to Cart
65966 3-Methoxy-7β-methyl-estra-2,5(10)-dien-17-one
1 mg $660   Add to Cart
10 mg $2,280   Add to Cart
65964 3-Methoxy-7β-methyl-estra-2,5(10)-dien-17β-ol
1 mg $625   Add to Cart
10 mg $2,000   Add to Cart
65935 (Z)-4-((Methoxycarbonyl)amino)-4-oxobut-2-enoic Acid
500 mg $625   Add to Cart
5 g $2,000   Add to Cart
110982 trans-3-methoxycarbonyl-4-(4-fluorophenyl)-N-methyl piperidine-2, 6-dione
71378 Methyl 2-(2-chloro-4-(2-hydroxy-3,5-diiodobenzamido)-5- methylphenyl)-2-(4-chlorophenyl)acetate
Synonyms:
Closantel impurity H;
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78261 Methyl 2-(2-chloro-4-(3-chloro-2-hydroxy-5-iodobenzamido)-5- methylphenyl)-2-(4-chlorophenyl)acetimidate
Synonyms:
Closantel impurity G;
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66193 Methyl 4-(Pyridin-2-ylamino)-2-methyl-2H-1,2-benzothiazine-2- carboxylate 1,1-Dioxide
25 mg $675   Add to Cart
250 mg $2,400   Add to Cart
66031 Methyl 6-(3-Chlorophenyl)-6-hydroxy-5-methylthiomorpholine-3- carboxylate
10 mg $625   Add to Cart
100 mg $2,000   Add to Cart
78828 Methyl 6-amino-7-chloro-6,7,8-trideoxy-1-thio-D-erythro-α-D- galacto-octopyranoside
Synonyms:
Clindamycin Hydrolysis Impurity B;
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66012 p-Methyl atomoxetine hydrochloride
Synonyms:
Atomoxetine Related Compound C;
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66079 2-Methyl Ethinyl Estradiol
Synonyms:
2-Methyl Ethinyl Estradiol (Impurity M);
5 mg $650   Add to Cart
50 mg $2,200   Add to Cart
66084 4-Methyl irinotecan
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66119 2(α/β)-Methyl Megestrol Acetate (Mixture of Diastereomers)
1 mg $725   Add to Cart
10 mg $2,800   Add to Cart
12041 Methyl Mycophenolate (EP Impurity E)
Synonyms:
(4E)-6-(1,3-Dihydro-4-hydroxy-6-methoxy-7-methyl-3-oxo-5- isobenzofuranyl)-4-methyl-4-hexenoic Acid Methyl Ester; Mycophenolic Acid Methyl Ester; EP Impurity E;
100 mg $875   Add to Cart
0.5 g $2,000   Add to Cart
12042 O-Methyl Mycophenolate Mofetil (EP Impurity D)
Synonyms:
EP Impurity D;
1 mg $890   Add to Cart
5 mg $2,120   Add to Cart
12152 N-Methyl Pantoprazole, mixture of 1 and 3 isomers
Synonyms:
5-(Difluoromethoxy)-2-[[(3,4-dimethoxy-2-pyridinyl)methyl] sulfinyl]-1-methyl -1H-benzimidazole;
5 mg $875   Add to Cart
25 mg $2,000   Add to Cart
D12153 N-Methyl Pantoprazole-d3, mixture of 1 and 3 isomers
Synonyms:
5-(Difluoromethoxy)-2-[[(3,4-dimethoxy-2-pyridinyl)methyl] sulfinyl]-1-(methyl-d3)-1H-benzimidazole;
98%D
5 mg $890   Add to Cart
25 mg $2,120   Add to Cart
66220 6α-Methyl Prednisolone 17,21-(Ethyl)orthopropionate
500 mg $650   Add to Cart
5 g $2,200   Add to Cart
66182 6α-Methyl prednisolone 17-hemisuccinate
1 mg $290   Add to Cart
66061 6α-Methyl Prednisolone 17-Methylhemisuccinate
5 mg $650   Add to Cart
25 mg $1,100   Add to Cart
250 mg $2,800   Add to Cart
66221 6α-Methyl Prednisolone 17-Propionate
250 mg $650   Add to Cart
2.5 g $2,200   Add to Cart
66062 6α-Methyl Prednisolone Cyclic 17,21-(Ortho Ester) Succinic Monoorthoacid Dimethyl Ester
25 mg $650   Add to Cart
100 mg $950   Add to Cart
250 mg $1,400   Add to Cart
66270 N-Methyl Valganciclovir HCl (Mixture of Diastereomers)
10 mg $650   Add to Cart
100 mg $2,200   Add to Cart
D66271 N-Methyl Valganciclovir-d5 HCl
1 mg $700   Add to Cart
10 mg $2,600   Add to Cart