Active pharmaceutical ingredient (API) impurities for research

All products contained in this category are intended for laboratory use only, and are not meant for human consumption.

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Product data	Purity	Price range	Estimated delivery
Paroxetine Related Compound E Mixture (1-Methyl-4-(p-fluorophenyl)-1,2,3,6-tetrahydropyridine in Paroxetine Hydrochloride Matrix) (DISCONTINUED) REF: 45-1500262	- - -	- - -	Discontinued product
Sulfamethazine Related Compound B (Mixture containing about 49% of 4-Amino-2-chloro-N-(4,6-dimethylpyrimidin-2-yl)benzenesulfonamide and about 48% of 4-Amino-3-chloro-N-(4,6-dimethylpyrimidin-2-yl)benzenesulfonamide) (DISCONTINUED) REF: 45-1629021	- - -	- - -	Discontinued product
Eprosartan Related Compound D (4-(bromomethyl)benzoic acid) (DISCONTINUED) REF: 45-1238251CAS: 6232-88-8	- - -	- - -	Discontinued product
Iodixanol Related Compound E (5-{N-[3-(N-{3-carbamoyl-5-[(2,3-dihydroxypropyl)carbamoyl]-2,4,6-triiodophenyl}acetamido)-2-hydroxypropyl]acetamido}-N1,N3-bis(2,3-dihydroxypropyl)-2,4,6-triiodoisophthalamide) REF: 45-1343561CAS: 255376-57-9	- - -	- - -	Discontinued product
Rabeprazole Related Compound A (Disodium 1-benzimidazol-2-yl-3-methyl-4-oxo-1,4-dihydropyridine-2-carboxylate) REF: 45-1598020	- - -	- - -	Discontinued product
Bisacodyl Related Compound B (2,4'-(Pyridin-2-ylmethylene)diphenol) REF: 45-1074042CAS: 16985-05-0	- - -	- - -	Discontinued product
Amiodarone Related Compound B REF: 45-1027324CAS: 83409-32-9	- - -	- - -	Discontinued product
Loracarbef L-Isomer (DISCONTINUED) REF: 45-1370225	- - -	- - -	Discontinued product
Nisoldipine Related Compound D (3-Isobutyl 5-methyl 2,6-dimethyl-4-(2-nitrophenyl)pyridine-3,5-dicarboxylate) (DISCONTINUED) REF: 45-1464158CAS: 103026-83-1	- - -	- - -	Discontinued product
Iscotrizinol Related Compound D (2-Ethylhexyl 4-[(4,6-bis{[4-(tert-butylcarbamoyl)phenyl]amino}-1,3,5-triazin-2-yl)amino]benzoate) (DISCONTINUED) REF: 45-1193390	- - -	- - -	Discontinued product
Ticagrelor R,S-Cyclopropyl Isomer REF: 45-1666979	- - -	- - -	Discontinued product
Ethylhexyl Triazone Related Compound B (4-[(4,6-Bis[(4-{[(2-ethylhexyl)oxy]carbonyl}phenyl)amino]-1,3,5-triazin-2-yl)amino]benzoic acid) (DISCONTINUED) REF: 45-1265559	- - -	- - -	Discontinued product
Calcitonin Salmon Related Compound B (calcitonin salmon-glycine) (COLD SHIPMENT REQUIRED) (DISCONTINUED) REF: 45-1086221CAS: 115472-96-3	- - -	- - -	Discontinued product
Nisoldipine Related Compound G (Diisobutyl 2,6-dimethyl-4-(2-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate) (DISCONTINUED) REF: 45-1464183CAS: 2226462-71-9	- - -	- - -	Discontinued product
Ticagrelor R,R,S,R-Isomer REF: 45-1666980CAS: 2096989-55-6	- - -	- - -	Discontinued product
Iscotrizinol Related Compound I (Bis(2-ethylhexyl) 4,4'-{[6-({4-[(4-{[(2-ethylhexyl)oxy]carbonyl}phenyl)carbamoyl]phenyl}amino)-1,3,5-triazine-2,4-diyl]bis(azanediyl)}dibenzoate) (DISCONTINUED) REF: 45-1193447	- - -	- - -	Discontinued product
Iscotrizinol Related Compound F (Bis(2-ethylhexyl) 4,4'-({6-[(4-carbamoylphenyl)amino]-1,3,5-triazine-2,4-diyl}bis(azanediyl))dibenzoate) (DISCONTINUED) REF: 45-1193414	- - -	- - -	Discontinued product
Probucol Related Compound B (4,4'-dithio-bis(2,6-di-tert-butylphenol)) (DISCONTINUED) REF: 45-1563331	- - -	- - -	Discontinued product
Carglumic Acid Related Compound C REF: 45-1096542	- - -	- - -	Discontinued product
Orlistat Related Compound D (N-formyl-L-leucine (3S,4R,6S)-3-hexyl-2-oxo-6-undecyltetrahydro-2H-pyran-4-yl ester) (DISCONTINUED) REF: 45-1478844CAS: 130793-27-0	- - -	- - -	Discontinued product

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Paroxetine Related Compound E Mixture (1-Methyl-4-(p-fluorophenyl)-1,2,3,6-tetrahydropyridine in Paroxetine Hydrochloride Matrix) (DISCONTINUED)

Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, nesoi

Color and Shape:

White Off-White Crystalline Powder

Ref: 45-1500262

25mg Discontinued Request information

Discontinued product

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Sulfamethazine Related Compound B (Mixture containing about 49% of 4-Amino-2-chloro-N-(4,6-dimethylpyrimidin-2-yl)benzenesulfonamide and about 48% of 4-Amino-3-chloro-N-(4,6-dimethylpyrimidin-2-yl)benzenesulfonamide) (DISCONTINUED)

Sulfonamides, nesoi

Color and Shape:

White Off-White Solid

Ref: 45-1629021

50mg Discontinued Request information

Discontinued product

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Eprosartan Related Compound D (4-(bromomethyl)benzoic acid) (DISCONTINUED)

CAS:6232-88-8

Aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacid and their derivatives not elsewhere specified or …

Formula:

C₈H₇BrO₂

Color and Shape:

White Powder

Molecular weight:

213.96294

Ref: 45-1238251

15mg Discontinued Request information

Discontinued product

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Iodixanol Related Compound E (5-{N-[3-(N-{3-carbamoyl-5-[(2,3-dihydroxypropyl)carbamoyl]-2,4,6-triiodophenyl}acetamido)-2-hydroxypropyl]acetamido}-N1,N3-bis(2,3-dihydroxypropyl)-2,4,6-triiodoisophthalamide)

CAS:255376-57-9

Aromatic cyclic amides (including cyclic carbamates) and their derivatives; salts thereof

Formula:

C₃₂H₃₈I₆N₆O₁₃

Color and Shape:

White Off-White Powder

Molecular weight:

1475.67652

Ref: 45-1343561

25mg Discontinued Request information

Discontinued product

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Rabeprazole Related Compound A (Disodium 1-benzimidazol-2-yl-3-methyl-4-oxo-1,4-dihydropyridine-2-carboxylate)

Compounds containing an unfused pyridine ring in the structure, nesoi

Formula:

C₁₄H₉N₃Na₂O₃

Color and Shape:

Off-White Yellow Powder

Molecular weight:

313.04393

Ref: 45-1598020

25mg Discontinued Request information

Discontinued product

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Bisacodyl Related Compound B (2,4'-(Pyridin-2-ylmethylene)diphenol)

CAS:16985-05-0

Compounds containing an unfused pyridine ring in the structure, nesoi

Formula:

C₁₈H₁₅NO₂

Color and Shape:

White Light Yellow Powder

Molecular weight:

277.11028

Ref: 45-1074042

20mg Discontinued Request information

Discontinued product

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Amiodarone Related Compound B

CAS:83409-32-9

Polypeptide, protein and glycoprotein hormones, their derivatives and structural analogues, nesoi

Formula:

C₂₃H₂₅I₂NO₃

Molecular weight:

616.99239

Ref: 45-1027324

Undefined size Discontinued Request information

Discontinued product

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Loracarbef L-Isomer (DISCONTINUED)

Aromatic or modified aromatic heterocyclic compounds withnitrogen hetero-atom(s) only nesoi

Formula:

C₁₆H₁₆ClN₃O₄· 3H₂O

Color and Shape:

Powder

Molecular weight:

403.82

Ref: 45-1370225

25mg Discontinued Request information

Discontinued product

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Nisoldipine Related Compound D (3-Isobutyl 5-methyl 2,6-dimethyl-4-(2-nitrophenyl)pyridine-3,5-dicarboxylate) (DISCONTINUED)

CAS:103026-83-1

Compounds containing an unfused pyridine ring in the structure, nesoi

Formula:

C₂₀H₂₂N₂O₆

Color and Shape:

Pale Yellow Solid

Molecular weight:

386.14779

Ref: 45-1464158

30mg Discontinued Request information

Discontinued product

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Iscotrizinol Related Compound D (2-Ethylhexyl 4-[(4,6-bis{[4-(tert-butylcarbamoyl)phenyl]amino}-1,3,5-triazin-2-yl)amino]benzoate) (DISCONTINUED)

Compounds (excluding melamine) containing an unfused triazine ring (whether or not hydrogenated) in the structure

Formula:

C₄₀H₅₂N₈O₄

Color and Shape:

White Powder

Molecular weight:

708.41115

Ref: 45-1193390

25mg Discontinued Request information

Discontinued product

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Ticagrelor R,S-Cyclopropyl Isomer

Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure, …

Formula:

C₂₃H₂₈F₂N₆O₄S

Molecular weight:

522.18608

Ref: 45-1666979

Undefined size Discontinued Request information

Discontinued product

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Ethylhexyl Triazone Related Compound B (4-[(4,6-Bis[(4-{[(2-ethylhexyl)oxy]carbonyl}phenyl)amino]-1,3,5-triazin-2-yl)amino]benzoic acid) (DISCONTINUED)

Compounds (excluding melamine) containing an unfused triazine ring (whether or not hydrogenated) in the structure

Formula:

C₄₀H₅₀N₆O₆

Color and Shape:

Powder

Molecular weight:

710.86

Ref: 45-1265559

20mg Discontinued Request information

Discontinued product

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Calcitonin Salmon Related Compound B (calcitonin salmon-glycine) (COLD SHIPMENT REQUIRED) (DISCONTINUED)

CAS:115472-96-3

Polypeptide, protein and glycoprotein hormones, their derivatives and structural analogues, nesoi

Formula:

C₁₄₇H₂₄₂N₄₄O₅₀S₂

Color and Shape:

Colorless Liquid

Molecular weight:

3487.71879

Ref: 45-1086221

0.34mg Discontinued Request information

Discontinued product

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Nisoldipine Related Compound G (Diisobutyl 2,6-dimethyl-4-(2-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate) (DISCONTINUED)

CAS:2226462-71-9

Compounds containing an unfused pyridine ring in the structure, nesoi

Formula:

C₂₃H₃₀N₂O₆

Color and Shape:

Yellow Powder

Molecular weight:

430.21039

Ref: 45-1464183

30mg Discontinued Request information

Discontinued product

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Ticagrelor R,R,S,R-Isomer

CAS:2096989-55-6

Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure, …

Formula:

C₂₃H₂₈F₂N₆O₄S

Molecular weight:

522.18608

Ref: 45-1666980

Undefined size Discontinued Request information

Discontinued product

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Iscotrizinol Related Compound I (Bis(2-ethylhexyl) 4,4'-{[6-({4-[(4-{[(2-ethylhexyl)oxy]carbonyl}phenyl)carbamoyl]phenyl}amino)-1,3,5-triazine-2,4-diyl]bis(azanediyl)}dibenzoate) (DISCONTINUED)

Compounds (excluding melamine) containing an unfused triazine ring (whether or not hydrogenated) in the structure

Formula:

C₅₅H₇₁N₇O₇

Color and Shape:

White Powder

Molecular weight:

941.5415

Ref: 45-1193447

25mg Discontinued Request information

Discontinued product

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Iscotrizinol Related Compound F (Bis(2-ethylhexyl) 4,4'-({6-[(4-carbamoylphenyl)amino]-1,3,5-triazine-2,4-diyl}bis(azanediyl))dibenzoate) (DISCONTINUED)

Compounds (excluding melamine) containing an unfused triazine ring (whether or not hydrogenated) in the structure

Formula:

C₄₀H₅₁N₇O₅

Color and Shape:

White Off-White Powder

Molecular weight:

709.39517

Ref: 45-1193414

25mg Discontinued Request information

Discontinued product

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Probucol Related Compound B (4,4'-dithio-bis(2,6-di-tert-butylphenol)) (DISCONTINUED)

Other aromatic organo-sulfur compounds (excluding pesti

Formula:

C₂₈H₄₂O₂S₂

Color and Shape:

Pale Yellow Crystalline Solid

Molecular weight:

474.77

Ref: 45-1563331

25mg Discontinued Request information

Discontinued product

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Carglumic Acid Related Compound C

Acyclic amides (including acyclic carbamates) and their derivatives and salts thereof, nesoi

Formula:

C₁₁H₁₇N₃O₈

Color and Shape:

Off-White Powder

Molecular weight:

319.10156

Ref: 45-1096542

Undefined size Discontinued Request information

Discontinued product

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Orlistat Related Compound D (N-formyl-L-leucine (3S,4R,6S)-3-hexyl-2-oxo-6-undecyltetrahydro-2H-pyran-4-yl ester) (DISCONTINUED)

CAS:130793-27-0

Lactones, nesoi

Formula:

C₂₉H₅₃NO₅

Color and Shape:

Liquid

Molecular weight:

495.39237

Ref: 45-1478844

10mg Discontinued Request information

Discontinued product

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