About Xinda Biotech

Xinda Biotech Co., Ltd. is headquartered in Yuhang District, Hangzhou, China, specializing in the custom synthesis, R&D, sales and import/export of chemical products. Our business focuses on fine chemicals, pharmaceutical raw materials & intermediates, agrochemicals, dyestuffs and biochemical reagents.

Since our founding, we have upheld the philosophy of "Integrity first, quality above all", committed to delivering premium products and complete service to our customers. We collaborate closely with universities, building a high-caliber R&D team; we field a professional, dedicated sales & service team; and we maintain stable, long-term partnerships with hundreds of chemical manufacturers across China. Through relentless effort, our products now reach North America, Europe, Southeast Asia and beyond, with long-standing business relationships with customers worldwide.

We look forward to working hand in hand with customers to create a brighter future together.

What We Supply

• Indazole carboxylic acids & halogenated indazole scaffolds
• Fluorinated alkyl building blocks (C5 fluorinated chains)
• β-Keto ester intermediates & malonate derivatives
• Chiral building blocks for peptide & asymmetric synthesis
• Custom synthesis & scale-up from gram to bulk quantities

Quality Commitment

Every batch is analyzed by HPLC/GC before release. Certificates of Analysis, NMR/LC-MS spectra and MSDS are available on request. We support both one-off research orders and long-term supply agreements for manufacturing customers.

Who We Serve

• Medicinal chemistry & discovery teams in pharmaceutical R&D
• CRO / CDMO partners requiring verified, documented intermediates
• University & institute research groups (PO / grant purchasing)
• API and fine chemical manufacturers seeking stable supply

Supply & Documentation

• Batch traceability with retained samples for every lot
• COA, HPLC/GC chromatograms, NMR/LC-MS spectra on request
• MSDS & export documentation for EU, US, UK and Asia shipments
• Flexible packaging: research vials, kg drums, custom bulk
• Quality audits from pharmaceutical partners welcome

R&D & Custom Synthesis

Our team combines 15+ years of hands-on experience in organic synthesis, process development and scale-up. Beyond catalog supply, we support:

• Custom synthesis of non-catalog intermediates and analogues
• Route optimization and process scale-up to pilot quantities
• Fluorination chemistry, heterocyclic scaffolds, chiral intermediates
• Technical consultations for sourcing and substitution decisions