Import 3-Cyclopentene-1-Carhoxylic Acid Ethyl Ester — Buy in Bulk from Supplier in China

3-Cyclopentene-1-Carboxylic Acid Ethyl Ester (CAS 21622-01-5, C8H12O2) is a liquid cyclopentene derivative supplied by Shenzhen Penking Biochemical Technology Co., Ltd. from their Guangdong facility. The compound presents as a liquid at standard conditions with a molecular weight of 140.18 g/mol, making it suitable for direct incorporation into reaction vessels without dissolution steps. Its unsaturated ring structure with an ester functional group provides reactivity sites for nucleophilic addition and ring-opening polymerisation pathways.

The typical purity grade for pharmaceutical and agrochemical intermediates of this class ranges from 97% to 99% (standard), though the supplier's exact certificate of analysis should be requested for batch-specific data. Density typically falls between 0.98 and 1.02 g/cm3 at 25°C (standard), with a boiling point around 180-190°C at atmospheric pressure (standard). Storage under inert atmosphere with light exclusion is standard practice to prevent oxidation of the cyclopentene double bond. The ester moiety confers moderate lipophilicity, useful in formulations requiring organic-phase compatibility.

Primary applications span pharmaceutical synthesis (particularly for prostaglandin and terpenoid building blocks), agrochemical intermediate manufacture (herbicide and insecticide precursors), and specialty chemical derivative production. Buyers include custom synthesis houses, generic API manufacturers, and agricultural chemical formulators. The liquid form factor simplifies handling compared to solid intermediates. Trade terms, MOQ, and lead time should be confirmed directly with Shenzhen Penking Biochemical Technology Co., Ltd., as these are not specified in available data.

Shenzhen Penking Biochemical Technology Co., Ltd. operates from 6a, Building B, Xili Sport Center, Zhugu, Shenzhen 518055, Guangdong Province, China. The supplier is classified as an imported-tier participant on the marketplace with a harbor trust designation. The response rate is recorded at 0.00% with zero average response hours, indicating that direct communication channels may require persistence or alternative contact methods. The company specialises in biochemical and chemical intermediates, positioned within the broader Shenzhen industrial corridor with access to port infrastructure through nearby Yantian or Shekou terminals.

The listing does not disclose manufacturing facility details, quality certifications (such as ISO 9001 or GMP), R&D capabilities, or client references. No information is provided on batch-to-batch consistency protocols, analytical capabilities, or regulatory filing support (DMF, CEP, or ASMF documentation). Buyers should request a supplier questionnaire, quality agreement, and recent audit reports before committing to pharmaceutical-grade supply. The company name suggests biochemical specialisation, though the exact scope of their catalogue beyond this cyclopentene ester is not stated in the available profile.