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Categories / Impurity

Impurity Products

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

Showing 6217-6240 of 27558 products
All In Stock Custom Synthesis
(3α,5β)-9(11)-en-12-Deoxy-3-hydroxy-Chol-9(11)-en-24-oic acid chemical structure
Custom Synthesis

(3α,5β)-9(11)-en-12-Deoxy-3-hydroxy-Chol-9(11)-en-24-oic acid

CAT No. CS-O-43007
CAS No. 62797-60-8
Category Impurity
Parent API
Formula C24H38O3
Mol. Wt. 374.56
(3α,5β,6α)-6-ethyl-3-hydroxy-7-oxo-cholan-24-oic Acid Ethyl Ester chemical structure
Custom Synthesis

(3α,5β,6α)-6-ethyl-3-hydroxy-7-oxo-cholan-24-oic Acid Ethyl Ester

CAT No. CS-O-53732
CAS No. 459789-97-0
Category Impurity
Parent API .
Formula C28H46O4
Mol. Wt. 446.66
(3α,5β,6α,7α)-3-(Acetyloxy)-6-ethyl-7-hydroxycholan-24-oic acid chemical structure
Custom Synthesis

(3α,5β,6α,7α)-3-(Acetyloxy)-6-ethyl-7-hydroxycholan-24-oic acid

CAT No. CS-O-44893
CAS No. 2055651-18-6
Category Impurity
Parent API Obeticholic Acid
Formula C28H46O5
Mol. Wt. 462.66
(3α,5β,7α,12α)-Cholane-3,7,12-triol chemical structure
Custom Synthesis

(3α,5β,7α,12α)-Cholane-3,7,12-triol

CAT No. CS-O-53842
CAS No. 4086-94-6
Category Impurity
Parent API -
Formula C24H42O3
Mol. Wt. 378.59
(3β,17β)-Androst-5-ene-3,17-diol, 3,17-di-10-undecenoate chemical structure
Custom Synthesis

(3β,17β)-Androst-5-ene-3,17-diol, 3,17-di-10-undecenoate

CAT No. CS-O-41397
CAS No. 1372939-81-5
Category Impurity
Parent API testosterone
Formula C39H64O4
Mol. Wt. 596.48
(4-(2-(2,4-Diaminopteridin-7-yl)ethyl)benzoyl)glutamic Acid chemical structure
Custom Synthesis

(4-(2-(2,4-Diaminopteridin-7-yl)ethyl)benzoyl)glutamic Acid

CAT No. CS-O-65466
CAS No. 2058054-07-0
Category Impurity
Parent API Pralatrexate
Formula C20H21N7O5
Mol. Wt. 439.43 g/mol
(4-(2-(diethylamino)ethoxy)-3,5-diiodophenyl)(2-(1-hydroxybutyl)benzofuran-3-yl)methanone chemical structure
Custom Synthesis

(4-(2-(diethylamino)ethoxy)-3,5-diiodophenyl)(2-(1-hydroxybutyl)benzofuran-3-yl)methanone

CAT No. CS-O-44594
CAS No. 1548369-35-2
Category Impurity
Parent API Budiodarone
Formula C25H29I2NO4
Mol. Wt. 661.31
(4-(2-amino-10-methyl-4-oxo-1,6,7,8,9,9a-hexahydro-4a,7-epiminopyrimido[4,5-b][1,4]diazepin-5(4H)-yl)benzoyl)glutamic acid chemical structure
Custom Synthesis

(4-(2-amino-10-methyl-4-oxo-1,6,7,8,9,9a-hexahydro-4a,7-epiminopyrimido[4,5-b][1,4]diazepin-5(4H)-yl)benzoyl)glutamic acid

CAT No. CS-O-61245
CAS No.
Category Impurity
Parent API Folic Acid
Formula C20H25N7O6
Mol. Wt. 459.46
(4-(4-amino-7-hydroxy-6-methoxyquinazolin-2-yl)piperazin-1-yl)(tetrahydrofuran-2-yl)methanone acetate chemical structure
Custom Synthesis

(4-(4-amino-7-hydroxy-6-methoxyquinazolin-2-yl)piperazin-1-yl)(tetrahydrofuran-2-yl)methanone acetate

CAT No. CS-O-42124
CAS No. -
Category Impurity
Parent API Terazosin
Formula C20H27N5O6
Mol. Wt. 433.46
(4aR,9aS)-7-Fluoro-2,3,4,4a,9,9a-hexahydro-1H-indeno[2,1-c]pyridine chemical structure
Custom Synthesis

(4aR,9aS)-7-Fluoro-2,3,4,4a,9,9a-hexahydro-1H-indeno[2,1-c]pyridine

CAT No. CS-O-59314
CAS No.
Category Impurity
Parent API Paroxetine
Formula C12H14FN
Mol. Wt. 191.24
(4aS,7aR)-tert-butyl hexahydropyrrolo[3,4-b][1,4]oxazine-6(2H)-carboxylate chemical structure
Custom Synthesis

(4aS,7aR)-tert-butyl hexahydropyrrolo[3,4-b][1,4]oxazine-6(2H)-carboxylate

CAT No. CS-O-39511
CAS No. 138027-02-8
Category Impurity
Parent API
Formula C11H20N2O3
Mol. Wt. 228.29
(4aS,7aS)-Octahydro-1-methyl-1H-pyrrolo[3,4-b]pyridine chemical structure
Custom Synthesis

(4aS,7aS)-Octahydro-1-methyl-1H-pyrrolo[3,4-b]pyridine

CAT No. CS-T-93689
CAS No. 151213-45-5
Category Impurity
Parent API Moxidectin
Formula C8H16N2
Mol. Wt. 140.2
(4aS,7S,8S)-3-hydroxy-4,7-dimethyl-8-(3-oxobutyl)octahydrobenzo[c][1,2]dioxine-8a-carbaldehyde chemical structure
Custom Synthesis

(4aS,7S,8S)-3-hydroxy-4,7-dimethyl-8-(3-oxobutyl)octahydrobenzo[c][1,2]dioxine-8a-carbaldehyde

CAT No. CS-O-54208
CAS No.
Category Impurity
Parent API -
Formula C15H24O5
Mol. Wt. 284.35
(4-bromo-2-chlorophenyl)(4-fluorophenyl)methanone chemical structure
Custom Synthesis

(4-bromo-2-chlorophenyl)(4-fluorophenyl)methanone

CAT No. CS-O-54154
CAS No. 1157263-84-7
Category Impurity
Parent API Empagliflozin
Formula C13H7BrClFO
Mol. Wt. 313.55
(4-Bromo-3,5-dimethyl-pyrazol-1-yl)-acetic acid chemical structure
Custom Synthesis

(4-Bromo-3,5-dimethyl-pyrazol-1-yl)-acetic acid

CAT No. CS-M-09603
CAS No. 312309-43-6
Category Impurity
Parent API
Formula -
Mol. Wt.
(4-Bromo-5-methyl-3-nitro-1H-pyrazol-1-yl)-acetic acid chemical structure
Custom Synthesis

(4-Bromo-5-methyl-3-nitro-1H-pyrazol-1-yl)-acetic acid

CAT No. CS-M-26236
CAS No. 345637-67-4
Category Impurity
Parent API
Formula -
Mol. Wt.
(4bS,5R,8aS,9R)-11-(cyclopropylmethyl)-4,5,8a-trihydroxy-7,8,8a,9-tetrahydro-3H-9,4b-(epiminoethano)phenanthrene-3,6(5H)-dione chemical structure
Custom Synthesis

(4bS,5R,8aS,9R)-11-(cyclopropylmethyl)-4,5,8a-trihydroxy-7,8,8a,9-tetrahydro-3H-9,4b-(epiminoethano)phenanthrene-3,6(5H)-dione

CAT No. CS-O-40160
CAS No. -
Category Impurity
Parent API Naltrexone
Formula C20H23NO5
Mol. Wt. 357.40
(4-Butyryl-2,3-dichlorophenoxy)-acetic Acid Ethyl Ester chemical structure
Custom Synthesis

(4-Butyryl-2,3-dichlorophenoxy)-acetic Acid Ethyl Ester

CAT No. CS-T-93888
CAS No. 2977-51-7
Category Impurity
Parent API Ethacrynic Acid
Formula C14H16Cl2O4
Mol. Wt. 319.2
(4-Chloro-3,5-dimethyl-pyrazol-1-yl)-acetic acid chemical structure
Custom Synthesis

(4-Chloro-3,5-dimethyl-pyrazol-1-yl)-acetic acid

CAT No. CS-M-08871
CAS No. 374913-86-7
Category Impurity
Parent API
Formula -
Mol. Wt.
(4-Chlorophenyl)[4-(1-methylethoxy)phenyl]methanone-D7 (Fenofibrate Impurity) chemical structure
Custom Synthesis

(4-Chlorophenyl)[4-(1-methylethoxy)phenyl]methanone-D7 (Fenofibrate Impurity)

CAT No. CS-T-96827
CAS No. -
Category Impurity
Parent API Fenofibrate
Formula C16H8D7ClO2
Mol. Wt. 281.79
(4-Cyclohexyl-3-(trifluoromethyl)phenyl)methanol chemical structure
Custom Synthesis

(4-Cyclohexyl-3-(trifluoromethyl)phenyl)methanol

CAT No. CS-O-40340
CAS No. 957205-23-1
Category Impurity
Parent API
Formula C14H17F3O
Mol. Wt. 258.28
(4-Cyclohexyl-5-furan-2-yl-4H-[1,2,4]triazol-3-yl-sulfanyl)acetic acid chemical structure
Custom Synthesis

(4-Cyclohexyl-5-furan-2-yl-4H-[1,2,4]triazol-3-yl-sulfanyl)acetic acid

CAT No. CS-M-03824
CAS No. 337487-27-1
Category Impurity
Parent API
Formula -
Mol. Wt.
(4-Difluoromethyl-6-phenyl-pyrimidin-2-yl-sulfanyl)-acetic acid chemical structure
Custom Synthesis

(4-Difluoromethyl-6-phenyl-pyrimidin-2-yl-sulfanyl)-acetic acid

CAT No. CS-M-04259
CAS No. 333429-71-3
Category Impurity
Parent API
Formula -
Mol. Wt.
(4-ethyl-3,5-dimethoxyphenyl) methanol chemical structure
Custom Synthesis

(4-ethyl-3,5-dimethoxyphenyl) methanol

CAT No. CS-O-38414
CAS No. 203579-18-4
Category Impurity
Parent API Midodrine hydrochloride
Formula C11H16O3
Mol. Wt. 196.24

Impurity Products at Clearsynth

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

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