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.
Read more
D,L-Cystathionine-d4
Controlled ProductCAS:146764-57-0
Applications Isotope labelled Intermediate for transsulfuration whereby a mammal transfers the sulfur of methionine via …
Formula:
C7H4H10N2O4S
Color and Shape:
White To Light Brown
Molecular weight:
226.29
Ref: TR-C989497
1mg | 375.00 € | ||
10mg | 2,619.00 € |
Estimated delivery in United States, on Tuesday 4 Feb 2025
5-Acetyl Rhein
Controlled ProductCAS:875535-35-6
Applications An impurity in the Diacerein (D303000) bulk drug. References Pelletier, J., et al.: Arthritis …
Formula:
C17H10O7
Color and Shape:
Neat
Molecular weight:
326.26
Ref: TR-A187705
5mg | 702.00 € | ||
10mg | 1,247.00 € | ||
2500µg | 413.00 € |
Estimated delivery in United States, on Tuesday 4 Feb 2025
(±)-Cetirizine-d4 Dihydrochloride
Controlled ProductCAS:1219803-84-5
Applications (±)-Cetirizine-d4 Dihydrochloride is the labeled analogue of Cetirizine Dihydrochloride (C281100), a nonsedating type histamine …
Formula:
C21H4H21ClN2O3ClH
Color and Shape:
Neat
Molecular weight:
465.83
Ref: TR-C281103
1mg | 396.00 € | ||
10mg | 2,688.00 € |
Estimated delivery in United States, on Tuesday 4 Feb 2025
2-(Diethylamino)-N-(2,4-dimethylphenyl)acetamide Hydrochloride
CAS:17289-54-2
Impurity Lidocaine EP impurity I Applications 2-(Diethylamino)-N-(2,4-dimethylphenyl)acetamide is a Lidocaine (L397800) derivative with reduced local …
Formula:
C14H22N2O·ClH
Color and Shape:
White To Off-White
Molecular weight:
270.80
Ref: TR-D441920
250mg | 349.00 € | ||
2500mg | 2,313.00 € |
Estimated delivery in United States, on Tuesday 4 Feb 2025
Didemethyl Mifepristone
Controlled ProductCAS:104004-92-4
Applications A metabolite of Mifepristone. References Heikinheimo, O., et al.: J. Steroid Biochem., 26, 279 …
Formula:
C27H31NO2
Color and Shape:
Neat
Molecular weight:
401.54
Ref: TR-D439550
1mg | 332.00 € | ||
5mg | 1,349.00 € | ||
10mg | 2,131.00 € |
Estimated delivery in United States, on Tuesday 4 Feb 2025
(R)-9-[2-(Diethylphosphonomethoxy)propyl] Adenine
Controlled ProductCAS:180587-75-1
Applications A acyclic phosphonate nucleotide.
Formula:
C13H22N5O4P
Color and Shape:
White Solid
Molecular weight:
343.32
Ref: TR-D444750
5mg | 256.00 € | ||
10mg | 475.00 € | ||
25mg | 1,101.00 € |
Estimated delivery in United States, on Tuesday 4 Feb 2025
Mebeverine Alcohol
Controlled ProductCAS:14367-47-6
Applications A metabolite of Mebeverine (M202490), an antispasmodic. References Greenwood, B., et al.: Eur. J. …
Formula:
C16H27NO2
Color and Shape:
Neat
Molecular weight:
265.39
Ref: TR-M202525
5mg | 125.00 € | ||
10mg | 142.00 € | ||
100mg | 326.00 € |
Estimated delivery in United States, on Tuesday 4 Feb 2025
3-Aminopyridine
CAS:462-08-8
Applications 3-Aminopyridine is a monosubstituted pyridine that shows convulsive effects on cortical Neurons. 3-Aminopyridine is …
Formula:
C5H6N2
Color and Shape:
Neat
Molecular weight:
94.11
Ref: TR-A629015
10g | 89.00 € | ||
50g | 97.00 € | ||
100g | 107.00 € |
Estimated delivery in United States, on Tuesday 4 Feb 2025
(3Alpha,5Beta,7Beta)-Cholane-3,7,24-triol
Controlled ProductCAS:130593-75-8
Formula:
C24H42O3
Color and Shape:
Neat
Molecular weight:
378.59
Ref: TR-C292530
25mg | 208.00 € | ||
100mg | 368.00 € |
Estimated delivery in United States, on Tuesday 4 Feb 2025
Diclofenac Methyl Ester
Controlled ProductCAS:15307-78-5
Impurity Aceclofenac EP Impurity B Applications Diclofenac Methyl Ester is the methyl ester analogue of …
Formula:
C15H13Cl2NO2
Color and Shape:
Neat
Molecular weight:
310.18
Ref: TR-D436500
50mg | 208.00 € | ||
100mg | 329.00 € | ||
250mg | 721.00 € |
Estimated delivery in United States, on Tuesday 4 Feb 2025
N-Acetyl Sulfapyridine-d4 (Major)
Controlled ProductCAS:1189732-52-2
Applications A major active labelled metabolite related to the adverse effects of Sulfasalazine in human …
Formula:
C13H9D4N3O3S
Color and Shape:
Neat
Molecular weight:
295.35
Ref: TR-A187912
1mg | 345.00 € | ||
10mg | 2,186.00 € |
Estimated delivery in United States, on Tuesday 4 Feb 2025
N-(3-Aminopropyl)caprolactam Oxalic Acid
Controlled ProductCAS:24566-95-8
Formula:
C9H18N2O•C2H2O4
Color and Shape:
Neat
Molecular weight:
170.25
Ref: TR-A629323
1g | 415.00 € |
Estimated delivery in United States, on Tuesday 4 Feb 2025
Agomelatine Dimer Urea
CAS:185421-27-6
Impurity Agomelatine Impurity 4 Applications Agomelatine Dimer Urea is an impurity of Agomelatine (A430020). Agomelatine …
Formula:
C27H28N2O3
Color and Shape:
Neat
Molecular weight:
428.52
Ref: TR-A430025
50mg | 282.00 € | ||
500mg | 1,899.00 € |
Estimated delivery in United States, on Tuesday 4 Feb 2025
Rolicyclidine Hydrochloride
Controlled ProductCAS:1934-48-1
Applications An analog of the hallucinogen Phencyclidine (P295500). References Maddox, V.H., et al.: J. Med. …
Formula:
C16H23N·ClH
Color and Shape:
Neat
Molecular weight:
265.82
Ref: TR-R639900
10mg | 288.00 € | ||
100mg | 1,967.00 € |
Estimated delivery in United States, on Tuesday 4 Feb 2025
3-(2,2-Dichloroethenyl)-2,2-dimethylcyclopropanecarboxylic Acid (cis/trans mixture)
CAS:55701-05-8
Applications 3-(2,2-Dichloroethenyl)-2,2-dimethylcyclopropanecarboxylic Acid is a reagent used in the preparation of hapten and immunogen for …
Formula:
C8H10Cl2O2
Color and Shape:
White To Light Yellow
Molecular weight:
209.07
Ref: TR-D434300
1g | 367.00 € | ||
10g | 2,436.00 € |
Estimated delivery in United States, on Tuesday 4 Feb 2025
Diethylaminocarboxymethyl POC Tenofovir (Mixture of Diastereomers)
Controlled ProductCAS:1246812-23-6
Applications Tenofovir is an acyclic phosphonate nucleotide analogue and reverse transcriptase inhibitor. It is used …
Formula:
C20H33N6O9P
Color and Shape:
Neat
Molecular weight:
532.48
Ref: TR-D443590
1mg | 278.00 € | ||
10mg | 1,840.00 € |
Estimated delivery in United States, on Tuesday 4 Feb 2025
Hydrocortisone (9Beta,11Beta)-Epoxide
CAS:10072-97-6
Applications A Hydrocortisone derivative formed by microbiological epoxidation of Hydrocortisone (H714615). References Kurosawa, Y., et …
Formula:
C21H28O5
Color and Shape:
White To Light Yellow
Molecular weight:
360.44
Ref: TR-H714590
5mg | 350.00 € | ||
50mg | 2,337.00 € |
Estimated delivery in United States, on Tuesday 4 Feb 2025
Daidzein-3',5',8-d3
Controlled ProductCAS:220930-96-1
Applications Daidzein-3',5',8-d3 is labelled Daidzein (D103500) which is an inactive analog of Genistein (Cat. #G350000). …
Formula:
C15H3H7O4
Color and Shape:
Off-White To Grey
Molecular weight:
257.26
Ref: TR-D103501
1mg | 399.00 € | ||
10mg | 2,701.00 € |
Estimated delivery in United States, on Tuesday 4 Feb 2025
Hydrocortisone 17-Propionate 21-Acetate
Controlled ProductCAS:74050-20-7
Applications A new topical hydrocortisone derivative with esterification in positions 17 and 21, inhibit the …
Formula:
C26H36O7
Color and Shape:
White To Beige
Molecular weight:
460.56
Ref: TR-H714628
25mg | 253.00 € | ||
50mg | 357.00 € | ||
100mg | 636.00 € |
Estimated delivery in United States, on Tuesday 4 Feb 2025
Diclofenac Dimer Impurity
CAS:1609187-30-5
Applications Diclofenac Dimer Impurity, is an metabolite of Diclofenac (D436450), which is nonsteroidal anti-inflammatory compound …
Formula:
C28H20Cl4N2O4
Color and Shape:
Light Orange Colour To Red
Molecular weight:
590.28
Ref: TR-D436455
25mg | 2,376.00 € | ||
2500µg | 345.00 € |
Estimated delivery in United States, on Tuesday 4 Feb 2025