Import Bilirubin — Buy in Bulk from Supplier in China

Bilirubin is a tetrapyrrole bile pigment derived from animal bile, supplied by Tianmen Xingxin Trading Company from Hubei Province, China, for pharmaceutical and medicinal applications. The compound is the primary end product of heme catabolism in vertebrates and exists as a linear tetrapyrrole in its unconjugated form. Tianmen Xingxin Trading Company sources this material in bulk quantities, positioning it for manufacturers of traditional Chinese medicine formulations and modern pharmaceutical preparations targeting convulsive disorders, fever management, and detoxification protocols.

The material is typically isolated from bovine or porcine bile through solvent extraction, alkaline hydrolysis, and crystallization, with commercial grades ranging from 90% to 99% purity depending on intended application and regulatory pathway. High-purity bilirubin appears as an orange to deep red crystalline powder, practically insoluble in water but soluble in chloroform, benzene, and alkaline solutions. For pharmaceutical use, critical quality parameters include heavy metal content (typically standard: lead ≤10 ppm, arsenic ≤2 ppm), loss on drying (standard: ≤1.0%), and residue on ignition (standard: ≤0.3%), though buyers must verify which specifications Tianmen Xingxin Trading Company certifies batch-to-batch.

Primary buyers include pharmaceutical manufacturers developing formulations for neonatal jaundice research, traditional medicine compounders, and veterinary medicine producers. The compound's therapeutic mechanism relates to its antioxidant properties and role in modulating cytotoxicity pathways, though regulatory status varies by jurisdiction. Importers should confirm with Tianmen Xingxin Trading Company whether material is offered as crude extract, refined powder, or pharmacopoeia-grade material, as this determines applicable testing standards and import licensing requirements. The supplier's response rate of 0.00% and zero average response hours indicate no recent quoting activity on record; direct contact is necessary to establish current availability and technical documentation.

Tianmen Xingxin Trading Company is located at No. 60, Renmin Road, Tianmen 431700, Hubei Province, China, operating as an imported-tier supplier with harbour trust designation. The company's physical address in Tianmen, a city known for agricultural processing and traditional medicine trading, suggests proximity to raw material supply chains for bile-derived products. However, no manufacturing facility descriptions, GMP certification status, or quality management system registrations are disclosed in the available listing data. The response rate of 0.00% and zero average response hours indicate either a new listing, a non-quoting account, or incomplete data capture of the supplier's actual trading activity.

The supplier's tier classification as 'imported' implies that material may be sourced from third-party manufacturers rather than produced in-house, a common arrangement in Chinese extract trading. Buyers should clarify whether Tianmen Xingxin Trading Company functions as a manufacturer, commissioned processor, or pure trading company, as this distinction affects audit requirements, batch traceability, and regulatory filing support. No revenue figures, employee counts, year of establishment, or major client references are present in the source data, and none should be inferred.