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Impurity standards

Leading impurity characterization with expertly developed standards that strengthen quality, compliance, and analytical confidence.

Impurity Standards

4-Chloro-N-methylpyridine-2-carboxamide

CAT. No.S490011 CAS No.220000-87-3 Mol. F.C7H7ClN2O Mol. W.170.60 g/mol Stock Status Instock

COA MSDS

4-chlorobenzaldehyde

CAT. No.C270001 CAS No.104-88-1 Mol. F.C7H5ClO Mol. W.140.57 g/mol Stock Status Instock

COA MSDS

4-Chlorobenzenesulfonamide

CAT. No.C2190001 CAS No.98-64-6 Mol. F.C6H6ClNO2S Mol. W.191.64 g/mol Stock Status Instock

COA MSDS

4-Chlorobenzophenone

CAT. No.B030004 CAS No.134-85-0 Mol. F.C13H9ClO Mol. W.216.66 g/mol Stock Status Instock

COA MSDS

4-chlorobenzotrifluride

CAT. No.F150001 CAS No.98-56-6 Mol. F.C7H4ClF3 Mol. W.180.55 g/mol Stock Status Instock

COA MSDS

4-Chlorobromobenzene

CAT. No.L100020 CAS No.106-39-8 Mol. F.C6H4BrCl Mol. W.191.45 g/mol Stock Status Instock

COA MSDS

4-Chlorocatechol

CAT. No.A340025 CAS No.2138-22-9 Mol. F.C6H5ClO2 Mol. W.144.56 g/mol Stock Status Instock

COA MSDS

4-Chlorohippuric Acid

CAT. No.H400002 CAS No.13450-77-6 Mol. F.C9H8ClNO3 Mol. W.213.62 g/mol Stock Status Instock

COA MSDS

4-chlorophenothiazine

CAT. No.P720004 CAS No.7369-69-9 Mol. F.C12H8ClNS Mol. W.233.72 g / mol Stock Status Instock

COA MSDS

4-Chlorophenyl-2-pyridinylmethanol

CAT. No.C1890003 CAS No.27652-89-7 Mol. F.C12H10ClNO Mol. W.219.67 g/mol Stock Status Instock

COA MSDS

4-Chlorophenylurea

CAT. No.C1310004 CAS No.140-38-5 Mol. F.C7H7ClN2O Mol. W.170.60 g/mol Stock Status Instock

COA MSDS

4-Chloropropiophenone

CAT. No.B020023 CAS No.6285-05-8 Mol. F.C9H9ClO Mol. W.168.62 g/mol Stock Status Instock

COA MSDS

4-cyanopyridine

CAT. No.I160002 CAS No.100-48-1 Mol. F.C6H4N2 Mol. W.104.11 g/mol Stock Status Instock

COA MSDS

4-D-Ser Cetrorelix

CAT. No.C1520019 CAS No.NA Mol. F.C70H92ClN17O14 Mol. W.1431.04 g/mol Stock Status Instock

COA MSDS

4-Desfluoro-6-fluoro Dolutegravir

CAT. No.D880045 CAS No.2244161-72-4 Mol. F.C20H19F2N3O5 Mol. W.419.38 g/mol Stock Status Instock

COA MSDS

4-Desmethoxy Omeprazole Sulfide

CAT. No.O040039 CAS No.704910-89-4 Mol. F.C16H17N3OS Mol. W.299.39 g/mol Stock Status Instock

COA MSDS

4-Desmethoxy-4-chloro Omeprazole Sulfide

CAT. No.O040040 CAS No.220757-74-4 Mol. F.C16H16ClN3OS Mol. W.333.84 g/mol Stock Status Instock

COA MSDS

4-Desmethoxy-4-nitro Omeprazole

CAT. No.O040042 CAS No.317807-10-6 Mol. F.C16H16N4O4S Mol. W.360.39 g/mol Stock Status Instock

COA MSDS

4-Desmethyl-2-methyl Celecoxib

CAT. No.C030008 CAS No.170569-99-0 Mol. F.C17H14F3N3O2S Mol. W.381.37 g/mol Stock Status Instock

COA MSDS

4-Dimethylaminoantipyrine

CAT. No.P990002 CAS No.58-15-1 Mol. F.C11H13N3O Mol. W.231.29 g / mol Stock Status Instock

COA MSDS

4-Dimethylaminobutyraldehyde Diethyl Acetal

CAT. No.Z030017 CAS No.1116-77-4 Mol. F.C10H23NO2 Mol. W.189.30 g/mol Stock Status Instock

COA MSDS

4-epi-Docetaxel

CAT. No.D260002 CAS No. 153381-68-1 Mol. F.C43H53NO14 Mol. W.807.88 g/mol Stock Status Instock

COA MSDS

4-epi-Dolutegravir

CAT. No.D880036 CAS No.1357289-37-2 Mol. F.C20H19F2N3O5 Mol. W.419.38 g/mol Stock Status Instock

COA MSDS

4-epi-Tetracycline Hydrochloride

CAT. No.T640002 CAS No.23313-80-6 Mol. F.C22H25N2O8Cl Mol. W.480.90 g/mol Stock Status Instock

COA MSDS

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Impurity standards

Impurity Standards

4-Chloro-N-methylpyridine-2-carboxamide

4-chlorobenzaldehyde

4-Chlorobenzenesulfonamide

4-Chlorobenzophenone

4-chlorobenzotrifluride

4-Chlorobromobenzene

4-Chlorocatechol

4-Chlorohippuric Acid

4-chlorophenothiazine

4-Chlorophenyl-2-pyridinylmethanol

4-Chlorophenylurea

4-Chloropropiophenone

4-cyanopyridine

4-D-Ser Cetrorelix

4-Desfluoro-6-fluoro Dolutegravir

4-Desmethoxy Omeprazole Sulfide

4-Desmethoxy-4-chloro Omeprazole Sulfide

4-Desmethoxy-4-nitro Omeprazole

4-Desmethyl-2-methyl Celecoxib

4-Dimethylaminoantipyrine

4-Dimethylaminobutyraldehyde Diethyl Acetal

4-epi-Docetaxel

4-epi-Dolutegravir

4-epi-Tetracycline Hydrochloride

Product structure

Sample structure