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Categories / Impurity

Impurity Products

Browse available compounds, catalogue references, CAS numbers and technical details from Clearsynth.

Showing 6361-6384 of 27541 products
All In Stock Custom Synthesis
(6-Bromo-2-ethyl-3-benzofuranyl)(3,5-dibromo-4-hydroxyphenyl)methanone chemical structure
Custom Synthesis

(6-Bromo-2-ethyl-3-benzofuranyl)(3,5-dibromo-4-hydroxyphenyl)methanone

CAT No. CS-T-49785
CAS No. 1402819-05-9
Category Impurity
Parent API Benzbromarone
Formula C17H11Br3O3
Mol. Wt. 503
(6-Chloro-3-oxo-2,3-dihydro-benzo[1,4]oxazin-4-yl)-acetic acid chemical structure
Custom Synthesis

(6-Chloro-3-oxo-2,3-dihydro-benzo[1,4]oxazin-4-yl)-acetic acid

CAT No. CS-M-09631
CAS No. 26494-58-6
Category Impurity
Parent API
Formula -
Mol. Wt.
(6-Fluoro-1H-indol-1-yl)acetic acid chemical structure
Custom Synthesis

(6-Fluoro-1H-indol-1-yl)acetic acid

CAT No. CS-M-46943
CAS No. 887685-54-3
Category Impurity
Parent API
Formula -
Mol. Wt.
(6-Methyl-2,4-dioxo-1,3-diaza-spiro[4.5]dec-3-yl)-acetic acid chemical structure
Custom Synthesis

(6-Methyl-2,4-dioxo-1,3-diaza-spiro[4.5]dec-3-yl)-acetic acid

CAT No. CS-M-11298
CAS No. 743441-93-2
Category Impurity
Parent API
Formula -
Mol. Wt.
(6-Methyl-4-oxo-4H-thieno[2,3-d]pyrimidin-3-yl)-acetic acid chemical structure
Custom Synthesis

(6-Methyl-4-oxo-4H-thieno[2,3-d]pyrimidin-3-yl)-acetic acid

CAT No. CS-M-09270
CAS No. 439139-95-4
Category Impurity
Parent API
Formula -
Mol. Wt.
(6-Nitro-2,3-dihydroimidazo[2,1-b]oxazol-2-yl)methanol chemical structure
Custom Synthesis

(6-Nitro-2,3-dihydroimidazo[2,1-b]oxazol-2-yl)methanol

CAT No. CS-O-45266
CAS No. 73332-78-2
Category Impurity
Parent API
Formula C6H7N3O4
Mol. Wt. 185.14
(6-Oxo-3-phenylpyridazin-1(6H)-yl)acetic acid chemical structure
Custom Synthesis

(6-Oxo-3-phenylpyridazin-1(6H)-yl)acetic acid

CAT No. CS-M-46952
CAS No. 91973-93-2
Category Impurity
Parent API
Formula -
Mol. Wt.
(6R)-5,10-Diformyltetrahydrofolic Acid chemical structure
Custom Synthesis

(6R)-5,10-Diformyltetrahydrofolic Acid

CAT No. CS-EO-02075
CAS No. -
Category Impurity
Parent API Folic Acid
Formula C21H23N7O8
Mol. Wt. 501.5
(6R)-5-MethylTetrahedropteroic Acid chemical structure
Custom Synthesis

(6R)-5-MethylTetrahedropteroic Acid

CAT No. CS-O-45624
CAS No. -
Category Impurity
Parent API Folic acid
Formula C15H18N6O3
Mol. Wt. 330.35
(6R)-Folinic Acid chemical structure
Custom Synthesis

(6R)-Folinic Acid

CAT No. CS-T-75424
CAS No. 73951-54-9
Category Impurity
Parent API Levofolinate
Formula C20H23N7O7
Mol. Wt. 473.44
(6R)-Tetrahydro-L-biopterin-d3 Sulfate (Mixture of Diastereomers) chemical structure
Custom Synthesis

(6R)-Tetrahydro-L-biopterin-d3 Sulfate (Mixture of Diastereomers)

CAT No. CS-T-97148
CAS No. -
Category Impurity
Parent API biopterin
Formula C9H14D3N5O7S
Mol. Wt. 342.34
(6R,10R)-8-oxido-7,8,9,10-tetrahydro-6H-6,10-methanoazepino[4,5-g]quinoxaline 1-oxide chemical structure
Custom Synthesis

(6R,10R)-8-oxido-7,8,9,10-tetrahydro-6H-6,10-methanoazepino[4,5-g]quinoxaline 1-oxide

CAT No. CS-O-57212
CAS No.
Category Impurity
Parent API Varenicline
Formula C13H12N3O2
Mol. Wt. 242.25
(6R,10S)-Varenicline Impurity 20 chemical structure
Custom Synthesis

(6R,10S)-Varenicline Impurity 20

CAT No. CS-O-59349
CAS No.
Category Impurity
Parent API Varenicline
Formula C13H13N3O2
Mol. Wt. 243.26
(6R,10S)-Varenicline Impurity 36 chemical structure
Custom Synthesis

(6R,10S)-Varenicline Impurity 36

CAT No. CS-O-59354
CAS No.
Category Impurity
Parent API Varenicline
Formula C15H17N3O2
Mol. Wt. 271.31
(6R,10S)-Varenicline Impurity 37 chemical structure
Custom Synthesis

(6R,10S)-Varenicline Impurity 37

CAT No. CS-O-59356
CAS No.
Category Impurity
Parent API Varenicline
Formula C28H26N6O
Mol. Wt. 462.55
(6R,7R)-3-Hydroxymethyl-7-((2-aminothiazol-4-yl)acetamido)ceph-3-em-4-carboxylic Acid chemical structure
Custom Synthesis

(6R,7R)-3-Hydroxymethyl-7-((2-aminothiazol-4-yl)acetamido)ceph-3-em-4-carboxylic Acid

CAT No. CS-T-79178
CAS No. 775233-43-7
Category Impurity
Parent API
Formula -
Mol. Wt.
(6R,7S)-7-(2-chloroacetamido)-7-methoxy-3-(((1-methyl-1H-tetrazol-5-yl)thio)methyl)-8-oxo-5-thia-1-a chemical structure
Custom Synthesis

(6R,7S)-7-(2-chloroacetamido)-7-methoxy-3-(((1-methyl-1H-tetrazol-5-yl)thio)methyl)-8-oxo-5-thia-1-a

CAT No. CS-O-34297
CAS No. 57617-09-1
Category Impurity
Parent API
Formula C13H15ClN6O5S2
Mol. Wt. 434.88
(6S)-2-imino-N,3-dipropyl-2,3,4,5,6,7-hexahydrobenzo[d]thiazol-6-amine chemical structure
Custom Synthesis

(6S)-2-imino-N,3-dipropyl-2,3,4,5,6,7-hexahydrobenzo[d]thiazol-6-amine

CAT No. CS-O-56885
CAS No.
Category Impurity
Parent API Pramipexole
Formula C13H23N3S
Mol. Wt. 253.41
(6S)-5,6,7,8-Tetrahydro-6-(propylamino)-1-naphthalenol chemical structure
Custom Synthesis

(6S)-5,6,7,8-Tetrahydro-6-(propylamino)-1-naphthalenol

CAT No. CS-T-61879
CAS No. 101470-23-9
Category Impurity
Parent API Rotigotine
Formula C13H19NO
Mol. Wt. 205.3
(6S)-6-methyl-7,7-dioxido-2-sulfamoyl-5,6-dihydro-4H-thieno[2,3-b]thiopyran-4-yl methanesulfonate chemical structure
Custom Synthesis

(6S)-6-methyl-7,7-dioxido-2-sulfamoyl-5,6-dihydro-4H-thieno[2,3-b]thiopyran-4-yl methanesulfonate

CAT No. CS-O-43235
CAS No. -
Category Impurity
Parent API Dorzolamide
Formula C9H13NO7S4
Mol. Wt. 375.46
(6S)-Mefox chemical structure
Custom Synthesis

(6S)-Mefox

CAT No. CS-P-08908
CAS No. -
Category Impurity
Parent API Folic Acid
Formula C20H23N7O7
Mol. Wt. 473.44
(6S)-N6-[3-[[(6S)-2-Amino-4,5,6,7-tetrahydro-6-benzothiazolyl]amino]-1-ethyl-2-methylpropyl]-4,5,6,7 chemical structure
Custom Synthesis

(6S)-N6-[3-[[(6S)-2-Amino-4,5,6,7-tetrahydro-6-benzothiazolyl]amino]-1-ethyl-2-methylpropyl]-4,5,6,7

CAT No. CS-T-83598
CAS No. 1973461-14-1
Category Impurity
Parent API
Formula C20H32N6S2
Mol. Wt. 420.64
(6S)-Tetrahydrofolic Acid chemical structure
Custom Synthesis

(6S)-Tetrahydrofolic Acid

CAT No. CS-T-61821
CAS No. 71963-69-4
Category Impurity
Parent API Folinic Acid
Formula C19H23N7O6
Mol. Wt. 445.43
(6S)-Tetrahydro-L-biopterin Disulfate chemical structure
Custom Synthesis

(6S)-Tetrahydro-L-biopterin Disulfate

CAT No. CS-T-61790
CAS No. 103130-45-6
Category Impurity
Parent API Biopterin
Formula C9H21N5O15S3
Mol. Wt. 535.48

Impurity Products at Clearsynth

Browse available Impurity products from Clearsynth. These compounds support analytical research, quality control and pharmaceutical development.

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