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ent-Tadalafil Sale

(Synonyms: 他达拉非EP杂质B(ENT-他达拉非),ent-IC-351) 目录号 : GC39288

ent-Tadalafil (ent-IC-351) ,化合物 (6S,12aS) ,是化合物 (6R,12aS) 的无活性顺式对映异构体。化合物 (6R,12aS) 是有效的 PDE5 抑制剂,IC50 为0.090 μM,而ent-Tadalafil 在高浓度 10 µM 时仍然没有活性。

ent-Tadalafil Chemical Structure

Cas No.:629652-72-8

规格 价格 库存 购买数量
10 mM * 1 mL in DMSO
¥2,233.00
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5mg
¥2,030.00
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10mg
¥3,850.00
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50mg
¥1,050.00
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Sample solution is provided at 25 µL, 10mM.

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Quality Control & SDS

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产品描述

ent-Tadalafil (ent-IC-351), compound (6S,12aS), is a inactive cis-enantiomer of compound (6R,12aS). compound (6R,12aS) is a potent PDE5 inhibitor with an IC50 of 0.090 μM, while ent-Tadalafil is inactive at concentrations up to 10 µM[1].

[1]. Daugan A, et al. The discovery of tadalafil: a novel and highly selective PDE5 inhibitor. 2: 2,3,6,7,12,12a-hexahydropyrazino[1',2':1,6]pyrido[3,4-b]indole-1,4-dione analogues.J Med Chem. 2003 Oct 9;46(21):4533-42.

Chemical Properties

Cas No. 629652-72-8 SDF
别名 他达拉非EP杂质B(ENT-他达拉非),ent-IC-351
Canonical SMILES O=C([C@]1([H])CC2=C([C@H](C3=CC=C(OCO4)C4=C3)N15)NC6=C2C=CC=C6)N(C)CC5=O
分子式 C22H19N3O4 分子量 389.4
溶解度 Soluble in DMSO 储存条件 Store at -20°C
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储备液的保存方式和期限:-80°C 储存时,请在 6 个月内使用,-20°C 储存时,请在 1 个月内使用。
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1 mg 5 mg 10 mg
1 mM 2.5681 mL 12.8403 mL 25.6805 mL
5 mM 0.5136 mL 2.5681 mL 5.1361 mL
10 mM 0.2568 mL 1.284 mL 2.5681 mL
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Research Update

Improved molecular softness of tadalafil hapten enhancing antibody performance in immunoassay: Evidence from computational chemistry

J Food Sci 2022 Mar;87(3):1342-1354.PMID:35166370DOI:10.1111/1750-3841.16078

The tadalafil-like compounds have appeared recently as adulterants in drinks and healthcare dietary supplements sourced from medicinal and edible food, which may cause illness and even death. In this work, the rationality of haptens was explored by computational chemistry and molecular simulation theories such as frontier molecular orbital (FMO)-based softness (S), three-dimensional (3D) structure, surface electrostatic potential (ESP), and lipophilic potential (LP). An antiserum from hapten H5 with the highest softness and maintaining the appropriate three-dimensional (3D) structure showed the optimal immunoassay performance, indicating an increasing softness was a critical factor for effective hapten. Based on the antibody induced by hapten H5, an indirect competitive enzyme-linked immunosorbent assay (icELISA) method for detecting multiple tadalafil-like adulterants was established. The icELISA showed a limit of detection (LOD), 50% inhibition concentration (IC50 ), and a working range of 0.004-0.396, 0.89-4.27, and 0.094-16.71 ng/ml for tadalafil, amino tadalafil, acetamino tadalafil, nortadalafil, and N-desmethyl ent-Tadalafil, respectively. The spiked recoveries of tadalafil-like adulterants in samples ranged from 84.9% to 116.2%. The results of the icELISA and HPLC-MS/MS methods had a good correlation for real samples with the R2 of 0.9955. Specially, this work not only provided a convenient immunoassay method for measuring tadalafil-like adulterants in spirit drinks and dietary supplements in group-screening manner, but also suggested that softness was likely to be a general theory for rational hapten design. PRACTICAL APPLICATION: Rapid monitoring of tadalafil-like adulterants in food samples is very necessary and important for consumers, regulatory agencies, and the food industry.