impurity

Betahistine EP Impurity C (NSC19005) 是 Betahistine 的杂质。 Betahistine 是可口服的组胺 H1 受体激动剂和 H3 受体的拮抗剂，可用作血管扩张剂，用于类风湿性关节炎的研究。

Desmethyl Celecoxib 是一种选择性的环氧化酶 2 (COX-2) 抑制剂，IC50为 32 nM，具有抗炎活性。

Domperidone EP Impurity A 用作医药中间体。

5-[(2R)-2-Aminopropyl]-1-[3-(benzoyloxy)propyl]-2,3-dihydro-1H-indole-7-carbonitrile (2R,3R)-2,3-dihydroxybutanedioate 是一种天然产物，可作为参考标准。

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

Cetilistat impurity 1 is an impurity of Cetilistat, which is an inhibitor of pancreatic lipase. It inhibits rat and human pancreatic lipase activity with IC50s of 54.8 nM and 5.95 nM, respectively.

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

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).

Impurity F of Calcipotriol is a impurity of Calcipotriol. Calcipotriol (MC 903; Calcipotriene) is a ligand of VDR-like receptors.

Quetiapine hydroxy impurity 是一种有用的有机化合物，可用于生命科学领域的相关研究。其产品编号为 T125035，CAS号为 329216-67-3。

Diosmin Impurity 8 是一种有用的有机化合物，可用于生命科学领域的相关研究，其产品编号为 T125116。

Sofosbuvir impurity B is the less active impurity of Sofosbuvir. Sofosbuvir is an active HCV RNA replication inhibitor in the HCV replicon assay, with potent anti-hepatitis C virus (HCV) activity.

Sofosbuvir impurity D is the less active impurity of Sofosbuvir. Sofosbuvir is an active HCV RNA replication inhibitor in the HCV replicon assay,with potent anti-hepatitis C virus (HCV) activity.

Sofosbuvir impurity E is the less active impurity of Sofosbuvir. Sofosbuvir is an active HCV RNA replication inhibitor in the HCV replicon assay,with potent anti-hepatitis C virus (HCV) activity.

Sofosbuvir impurity H, an diastereoisomer of Sofosbuvir, is the impurity of Sofosbuvir. Sofosbuvir (PSI-7977) is a diastereoisomer of Sofosbuvir.Sofosbuvir is an HCV RNA replication inhibitor, with potent anti-hepatitis C virus activity.

Sofosbuvir impurity I 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.

Calcipotriol Impurity C is an impurity of Calcipotriol, a ligand for VDR-like receptors.

Impurity of Doxercalciferol is an impurity of doxercalciferol, a synthetic analog of ergocalciferol used as a drug for secondary hyperparathyroidism and metabolic bone disease, and it suppresses parathyroid synthesis.

Theophylline EP impurity C为一种生物碱，其具有抗支气管平滑肌痉挛效果，并可用以评估化合物纯度及质量。此外，Theophylline EP impurity C在治疗哮喘及慢性阻塞性肺病方面展示了潜在的临床应用价值。

Losartan potassium impurity E is a compound of Valsartan impurity.

Doxazosin impurity 12 是 CTX-Mβ-内酰胺酶 (Beta-lactamase) 的抑制剂，其对 CTX-M 的 Ki 值为 0.7 mM。

Loratadine specified impurity F is a fluorinated analog of Loratadine.

Amlodipine besilate impurity G 是 Calcium Channel 的拮抗剂，在神经病学疾病的研究中具有潜在的应用价值，也是合成 Amlodipine besilate 的杂质。