Import 5-Chloroindole — Buy in Bulk from Supplier in China

5-Chloroindole (C8H6ClN, CAS 17422-32-9) is a halogenated indole derivative with a chlorine substituent at the 5-position of the bicyclic heteroaromatic ring system. The supplier lists a minimum purity of 98%, which is standard for intermediate-grade material destined for pharmaceutical and agrochemical synthesis. This compound serves as a versatile building block in heterocyclic chemistry, where the electron-withdrawing chlorine atom activates the ring system for further functionalisation at the 3-position.

The material is typically supplied as a crystalline solid with characteristic aromatic odour. Standard industrial grades range from 98% to 99.5% purity, with higher purity lots (greater than 99%) typically reserved for API synthesis and requiring additional analytical documentation. Common impurities include positional isomers (4-chloroindole, 6-chloroindole), unreacted indole, and trace solvent residues from the chlorination process. The supplier notes custom order capability, suggesting flexibility in batch sizes and potential for tailored specification packages.

Primary buyers include pharmaceutical contract manufacturers developing kinase inhibitors and serotonin receptor modulators, agrochemical formulators synthesising plant growth regulators, and academic research groups in medicinal chemistry. The compound requires storage under inert atmosphere at 2-8 degrees Celsius with protection from light and moisture. Buyers should confirm the specific certificate of analysis for each lot, as halogenated indoles can degrade through photooxidation and require verification of actual purity versus stated minimums.

Yixing Zhongyu Medicine Technology Co., Ltd. operates from Jingtang Industrial Park in Yixing, Jiangsu Province, China (postal code 214244). The supplier holds an imported tier designation with harbour trust tier classification. The response rate is recorded at 0.00% with zero average response hours, indicating no historical response data is available through this channel. Buyers should initiate direct contact to assess current responsiveness and active trading status before relying on this listing for time-sensitive procurement.

The company profile does not disclose manufacturing capabilities, regulatory filings, or client references. No ISO, GMP, or other certification details are independently verified in the available data. The listing emphasises custom order flexibility and multiple packaging configurations, suggesting a trading or distribution model rather than confirmed captive manufacturing. Prospective buyers should request a company profile, quality agreement, and audit trail for any pharmaceutical-grade requirements.