5-(5-Fluoro-2-oxo-1,2-dihydro-indol-3-ylidenemethyl)-2,4-dimethyl-1H-pyrrole-3-carboxylic Acid is a sunitinib impurity.

TriMetazidine EP Impurity-D is the starting material for the synthesis of TriMetazidine and an intermediate for the synthesis of various compounds.

Flecainide Impurity D is used as an intermediate in industry.

Mycophenolic Acid Impurity (5,7-dihydroxy-4-methylphthalide) is an an immunosuppresant drug and potent anti-proliferative, and can be used in place of the older anti-proliferative azathioprine. It is usually used as part of triple therapy including a calcineurin inhibitor (ciclosporin or tacrolimus) and prednisolone. It is also useful in research for the selection of animal cells that express the E. coli gene coding for XGPRT (xanthine guanine phosphoribosyltransferase).

Rivaroxaban Impurity (Rivaroxaban-10) is a potent Blood-coagulation factor Xa inhibitor, IC50= 66 nM.

Darapladib-impurity is the impurity of Darapladib. Darapladib inhibits lipoprotein-associated phospholipase A2 (Lp-PLA2).

BAR501 impurity is an impurity found in the preparation of BAR501 that acts as an agonist of the G protein-coupled bile acid-activated receptor (GP-BAR1). BAR501 impurity (10 μM) induces a 150% increase in luciferase activity in a GP-BAR1 reporter gene assay

Cetirizine Impurity B dihydrochloride (De(carboxymethoxy) Cetirizine Acetic Acid Dihydrochloride) is an impurity of Cetirizine dihydrochloride. Cetirizine is a second-generation antihistamine. Cetirizine is a specific, orally active and long-acting histamine H1-receptor antagonist. Cetirizine marks antiallergic properties and inhibits eosinophil chemotaxis during the allergic response.

Domperidone EP Impurity A is used as pharmaceutical intermediates.

Levofloxacin Hydrochloride Impurity A I, one of the quinolones, has a broad spectrum of antibacterial action.

(4S,5R)-3-tert-butoxycarbony-2-(4-anisy)-4-phenyl-5-oxazolidinecarboxylic acid a.k.a. polyene-paclitaxel side chain is used as a pharmaceutical intermediate mainly for synthesizing the drug polyene-paclitaxel.

5-[(2R)-2-Aminopropyl]-1-[3-(benzoyloxy)propyl]-2,3-dihydro-1H-indole-7-carbonitrile (2R,3R)-2,3-dihydroxybutanedioate is a natural product that can be used as reference standards.

Olmesartan medoxomil impurity C is an impurity of Olmesartan medoxomil, a potent and selective angiotensin AT1 receptor inhibitor with an IC50 of 66.2 μM.

p-Hydroxybenzaldehyde glucoside (4-formylphenyl b-d-glucopyranoside) is an inhibitory aspergillus derivative with analgesic activity and can be used to study neurogenic pain.

Bromhexine Impurity B reagent used in the preparation of Ambroxol and Bromhexine (B678600) metabolites Ambroxol EP Impurity E.

Stevia impurity (13-[(2-O-6-deoxy-β-D-glucopyranosyl-3-O-β-D-glucopyranosyl-β-D-glucopyranosyl)oxy]ent-kaur-16-en-19-oic acid β-D-glucopyranosyl ester) is a natural product for research related to life sciences. The catalog number is TN6498 and the CAS number is 1309929-72-3.

Betahistine EP Impurity C (NSC19005) is structurally related to Betahistine. Betahistine EP Impurity C is a dimer of Betahistine.

Teriflunomide impurity 3 (4-Amino-N-(4-trifluoromethylphenyl)benzamide) is a selective COX-1 inhibitor(IC50 of 30 μM). It is less active against COX-2 (IC50>100 μM).

Olanzapine lactam impurity is a potential impurity found in commercial preparations of olanzapine.1It is a degradation product formed by exposure to thermal or oxidative stress. 1.Baertschi, S.W., Brunner, H., Bunnell, C.A., et al.Isolation, identification, and synthesis of two oxidative degradation products of olanzapine (LY170053) in solid oral formulationsJ. Pharm. Sci.97(2)883-892(2008)

Roflumilast Impurity E is the impurity of Roflumilast. Roflumilast acts as a selective and long-acting the enzyme PDE-4 inhibitor(IC50 value of 0.8 nM).

Sofosbuvir impurity F (Sofosbuvir 3',5'-Bis-(S)-phosphate) is both a diastereomer of Sofosbuvir and an impurity of Sofosbuvir which is an inhibitor of HCV RNA replication.

Chlorthalidone impurity, a metabolite of the thiazide-like diuretic Chlorthalidone, is utilized in the management of hypertension [1] [2].

Chlorthalidone impurity G is a potential impurity found in commercial preparations of chlorthalidone that has moderate antihypertensive effects. Chlorthalidone is a thiazide-like diuretic that inhibits the Na+/Cl- cotransporter in the distal convoluted tubule of the kidney, which prevents reabsorption of sodium and chloride leading to a reduction in plasma volume and cardiac output. It also inhibits carbonic anhydrase (CA), including the isoforms CAVB, VII, IX, XII, and XIII (Kis = 2.8-23 nM) and, to a lesser extent, CAI, CAII, IV, VA, and VI (Kis = 138-1,347 nM), which may mediate its sustained vasodilatory activity. Dietary administration of chlorthalidone (8 mg per animal per day) reduces arterial hypertension and prevents or reduces ventricular hypertrophy induced by deoxycorticosterone acetate (DOCA) in salt-hypertensive rats. Formulations containing chlorthalidone have been used alone or in combination with other antihypertensive agents to lower arterial blood pressure and as adjuvants to address edema caused by cardiac or renal disorders.

Sofosbuvir impurity G is a diastereoisomer of Sofosbuvir.Sofosbuvir is an HCV RNA replication inhibitor, with potent anti-hepatitis C virus activity.

Impurity B of Calcitriol is an impurity of Calcitriol. Calcitriol is the hormonally active form of vitamin D, Calcitriol is the active metabolite of vitamin D3 that activates the vitamin D receptor (VDR).

Edoxaban impurity 6 is an impurity of Edoxaban. Edoxaban (DU-176) is a selective, potent and orally active factor Xa (FXa) inhibitor with Kis of 0.561 nM and 2.98 nM for free FXa and prothrombinase, respectively. Edoxaban is an anticoagulant agent and can be used for stroke prevention[1][2]. [1]. Furugohri T, et al. DU-176b, a potent and orally active factor Xa inhibitor: in vitro and in vivo pharmacological profiles. J Thromb Haemost. 2008 Sep;6(9):1542-9.[2]. Mendell J, Lee F, Chen S, The Effects of the Antiplatelet Agents, Aspirin and Naproxen, on Pharmacokinetics and Pharmacodynamics of the Anticoagulant Edoxaban, a Direct Factor Xa Inhibitor. J Cardiovasc Pharmacol. 2013 Apr 23.

Prasugrel chloride impurity is an orally active antagonist of P2Y12 receptor, and inhibits ADP-induced platelet aggregation.

Ciprofibrate impurity A is an impurity of Ciprofibrate. Ciprofibrate is a PPARα agonist[1]. [1]. Passilly, P., et al., Phosphorylation of peroxisome proliferator-activated receptor alpha in rat Fao cells and stimulation by ciprofibrate. Biochem Pharmacol, 1999. 58(6): p. 1001-8.

Amlodipine besilate impurity G is a Calcium Channel antagonist with potential application in the study of neurological diseases and is an impurity in the synthesis of Amlodipine besilate.

Carvedilol EP IMpurity E (Carvedilol USP E) is used as a pharmaceutical intermediate.

Terazosin dimer impurity dihydrochloride, a dimeric form of Terazosin, is a chemical impurity found in Terazosin. Terazosin itself is a derivative of quinazoline and acts as a competitive and orally active α1-adrenoceptor antagonist[1].

Ibuprofen impurity 1 is an Ibuprofen impurity. Ibuprofen is an anti-inflammatory inhibitor targeting COX-1 and COX-2 with IC50s of 13 μM and 370 μM, respectively[1]. [1]. Noreen Y, et al. Development of a radiochemical cyclooxygenase-1 and -2 in vitro assay for identification of natural products as inhibitors of prostaglandin biosynthesis. J Nat Prod. 1998 Jan;61(1):2-7.

HDAC-IN-7 (HBI-8000) (Chidamide impurity) is an impurity of Chidamide. Chidamide is a potent and orally bioavailable inhibitor of HDAC enzymes class I (HDAC1/2/3) and class IIb (HDAC10).

Candicine (N, N, N-trimethyltyramine chloride) is a natural product from Stapelia gigantea.

meta-Fexofenadine (meta-MDL-16455) is an isomer of Fexofenadine.

4-Amino-5-Chloro-2-Methoxybenzoic Acid (Metoclopramide EP Impurity C) is a Metoclopramide metabolite.

N2-Acetylaciclovir (Aciclovir EP Impurity F) is a derivative of the antiviral compound Aciclovir, which has selective T-cell immunotoxicity.

MELK-IN-1 (MELK inhibitor 17) is a potent inhibitor of maternal embryonic leucine zipper kinase (MELK),(IC50:3nm;Ki:0.39 nM).

5,6-trans-Vitamin D3（5,6-trans-Cholecalciferol） is an isoform of Vitamin D3, which is converted from Vitamin D3 on the skin surface after light exposure.

Gefitinib impurity 1 is a compound derived from Gefitinib, a potent and selective EGFR tyrosine kinase inhibitor (IC 50 = 33 nM). This orally active compound selectively inhibits tumor cell growth stimulated by EGF (IC 50 = 54 nM) and inhibits EGFR autophosphorylation induced by EGF in tumor cells. Additionally, Gefitinib induces autophagy and exhibits antitumor activity.

Tetracycline EP Impurity A-d6 is a deuterated compound of Tetracycline EP Impurity A. Tetracycline EP Impurity A has a CAS number of 79-85-6.

Ibuprofen Impurity K is a compound that serves as an impurity in Ibuprofen. Ibuprofen itself is an anti-inflammatory inhibitor specifically designed to target COX-1 and COX-2. It exhibits inhibitory activity with IC50 values of 13 μM and 370 μM for COX-1 and COX-2, respectively.

Dapagliflozin impurity is the enantiomer of Dapagliflozin, Dapagliflozin is a sodium glucose transporter 2 inhibitor.

Mirabegron impurity-1 is a useful organic compound for research related to life sciences. The catalog number is T66544 and the CAS number is 391901-45-4.

Gefitinib impurity 2 is a useful organic compound for research related to life sciences and the catalog number is T67092.

Lenvatinib impurity 10 is a useful organic compound for research related to life sciences and the catalog number is T64460.

Sofosbuvir impurity N is an diastereoisomer of Sofosbuvir.Sofosbuvir is an HCV RNA replication inhibitor, with potent anti-hepatitis C virus activity.

Sofosbuvir impurity J is an diastereoisomer of Sofosbuvir.Sofosbuvir is an HCV RNA replication inhibitor, with potent anti-hepatitis C virus activity.

Sofosbuvir impurity L is an diastereoisomer of Sofosbuvir.Sofosbuvir is an HCV RNA replication inhibitor, with potent anti-hepatitis C virus activity.

Atorvastatin Epoxy Tetrahydrofuran Impurity is an impurity isolated oxidative degradation products of Atorvastatin. Atorvastatin is an orally active HMG-CoA reductase inhibitor.