Last updated: April 25, 2026
Who supplies tetracycline hydrochloride at industrial scale?
Tetracycline hydrochloride is a widely used, long-established antibiotic API and intermediate. Commercial supply is typically handled by (1) API manufacturers that produce tetracycline-class antibiotics in bulk, (2) specialty API producers with fermentation and conversion capability, and (3) distributors that source from approved manufacturers and resell into pharma and chemical channels.
A procurement-ready supplier list depends on the regulatory lane (API for drug manufacture, compendial/excipient grade chemicals, or research-use products). Based on how the market is structured for tetracycline hydrochloride, the most reliable supplier pathways are:
- Direct API manufacturers (for commercial API supply, DMF/CEP support, and GMP documentation)
- API distributors (for shorter lead times and multi-source coverage)
- Chemical trading desks tied to branded or compendial catalogs (often faster for non-GMP needs)
What supplier types and documentation you should expect?
For tetracycline hydrochloride, the practical documentation set in pharma procurement usually includes:
- GMP status (API manufacturing in compliance with GMP)
- Analytical documentation (CoA with identity and assay, typical impurities profile)
- Regulatory files when applicable (DMF for US submissions; CEP for EU routes)
- Specifications aligned to pharmacopoeial standards when sold into finished-dose manufacturing
Typical labels and packaging formats (by commercial channel):
- Bulk API drums (kilograms to multi-hundred kilogram lots)
- Tight, desiccated packaging for moisture/handling-sensitive grades
- Standard chemical labeling and hazard classification consistent with antibiotic powders
Where does supply concentrate geographically?
For tetracycline-class antibiotics, commercial production is concentrated in established API hubs with deep fermentation and chemical conversion capacity. In practice, this means supplier listings are dominated by manufacturers in:
- China
- India
- EU and US specialty chemical firms for certain grades and custom supply
Procurement performance typically correlates with whether the supplier runs tetracycline hydrochloride as a standardized API SKU vs. as a custom conversion product.
Which companies are commonly referenced in the tetracycline hydrochloride supply chain?
Below is a commercially oriented supplier map by supplier archetype. Use it as a starting short-list for outreach, RFQ coverage, and multi-source strategy.
Direct API manufacturers (primary procurement lane)
These suppliers typically market antibiotic APIs including tetracyclines and offer GMP documentation for drug manufacture (route-to-market varies by company):
- Zhejiang NHU Co., Ltd.
- Hubei Xingfa Chemicals Group
- Hainan Sunflower Pharmaceutical Co., Ltd.
- Jiangsu Hengrui Medicine (API affiliates and supply chains)
- Cangzhou Pharmaceutical / antibiotic API producers serving bulk chemical markets
Specialty API producers and fermentation-derived antibiotic suppliers
These firms often supply tetracycline derivatives and related antibiotics, either directly or through affiliates:
- DSM-Firmenich supply-chain partners for antibiotic intermediates (via chemical distributors)
- Other fermentation-derived antibiotic API manufacturers in China and India
Distributors and chemical resellers (secondary procurement lane)
Distributors commonly list tetracycline hydrochloride and provide multi-vendor sourcing, often with faster turnaround:
- MedChemExpress
- TCI Chemicals
- Selleck Chemicals
- Sigma-Aldrich / Merck Life Science catalog supply
- Thermo Fisher Scientific (catalog channel)
- VWR and similar lab distributors
Note: Distributor availability can change rapidly by batch, and lab-catalog supply is not the same lane as GMP API supply for drug manufacture.
What procurement routes work best for pharmaceutical API use?
Route A: GMP API via DMF/CEP-linked suppliers
- Best for: finished-dose manufacturers, CMOs, and applicants needing regulatory traceability.
- Selection criteria: DMF or CEP availability, GMP certificate validity, impurity profile consistency.
Route B: Multi-source qualification
- Best for: commercial production continuity and price stability.
- Selection criteria: repeatability of CoA results across lots, packaging integrity, lead-time reliability.
Route C: Catalog-only supply (research or non-GMP)
- Best for: R&D, screening, method development, or non-regulated applications.
- Selection criteria: grade clarity (lab vs. compendial vs. GMP), certificate type supplied.
How tetracycline hydrochloride is typically specified in commerce
Commercial product descriptions generally align to:
- Chemical name: Tetracycline hydrochloride
- CAS: 64-73-3 (commonly referenced for tetracycline hydrochloride)
- Form: powder (often crystalline)
- Assay: set as tetracycline hydrochloride equivalent
- Impurity profile: related substances and residual solvents depending on process
For pharma procurement, vendors usually provide:
- CoA with ID tests (UV/IR or HPLC-based identity), assay, and limits for related substances
- TSE/BSE statements (common for pharma-grade supply chains)
- Heavy metals and microbial limits depending on intended use
Risk and performance factors that differentiate suppliers
Tetracycline hydrochloride procurement is often constrained by:
- Lot-to-lot consistency in related substances
- Stability and handling requirements driven by hygroscopicity and degradation pathways under heat/light/humidity
- Batch release documentation readiness (CoA, GMP status, regulatory file references)
- Supply continuity because tetracycline-class APIs are produced in limited, high-capacity fermentation networks rather than atomized custom chemistry
Multi-source shortlist strategy (actionable)
For a procurement or qualification team, the most practical approach is:
- Choose 2 direct API manufacturers (GMP lane)
- Add 1 backup manufacturer (GMP lane) or 1 distributor that can re-route supply quickly during shortages
- Qualification focus:
- assay and key impurities at specification limits
- impurity drift across 2 to 3 lots
- document completeness (CoA format, GMP certificate, and traceability statements)
Key Takeaways
- Tetracycline hydrochloride supply is dominated by direct API manufacturers in established fermentation and antibiotic production hubs, with distributors and lab-catalog resellers acting as secondary channels.
- Procurement for drug manufacture depends on GMP documentation and regulatory file support; catalog availability does not equal API regulatory readiness.
- Supplier differentiation comes down to lot consistency, impurity control, packaging integrity, and documentation completeness.
FAQs
What is the typical CAS for tetracycline hydrochloride?
64-73-3 (commonly listed for tetracycline hydrochloride).
Is tetracycline hydrochloride supply the same for GMP API and lab research?
No. Catalog and lab resellers often sell non-GMP or research-grade material; GMP API supply requires GMP manufacturing, CoA, and regulatory document alignment.
Which supplier route is best for drug manufacturing?
Direct GMP API manufacturers with DMF/CEP support or equivalent regulatory traceability is the most reliable route.
How do I reduce supply disruption risk?
Qualify at least two GMP sources and add a fast re-routing option via a qualified distributor or a third GMP manufacturer.
What quality attributes matter most in qualification?
Assay, related substances/impurities, impurity drift across lots, and documentation completeness (GMP certificate, CoA, traceability statements).
References
[1] Merck KGaA. “Tetracycline hydrochloride.” Merck/EMD Catalog. (Accessed 2026-04-25).
[2] Sigma-Aldrich (Merck). “Tetracycline hydrochloride.” Product information and specifications (catalog). (Accessed 2026-04-25).
[3] TCI Chemicals. “Tetracycline hydrochloride.” Product listing (catalog). (Accessed 2026-04-25).
[4] Thermo Fisher Scientific. “Tetracycline hydrochloride.” Catalog entry. (Accessed 2026-04-25).
[5] MedChemExpress. “Tetracycline hydrochloride.” Product listing (catalog). (Accessed 2026-04-25).
