Last updated: April 23, 2026
Who Supplies Cupric Chloride (CuCl₂) to the Pharmaceutical Market?
What is “cupric chloride” used for in drug and pharma contexts?
“Cupric chloride” typically refers to copper(II) chloride (CuCl₂), sold in multiple grades (anhydrous and dihydrate) and packaged for industrial chemical use and, in some cases, for regulated manufacturing inputs. In pharmaceuticals, copper salts show up as reagents and catalysts in process steps and, less commonly, as components tied to formulation or analytical workflows.
Which suppliers provide cupric chloride for industrial and pharma-related supply chains?
Below are major, established chemical suppliers that commonly list copper(II) chloride (CuCl₂) for sale. Product offerings usually include CAS 7646-85-7 (anhydrous CuCl₂) and CAS 6522-22-5 (CuCl₂ dihydrate), with specifications varying by grade.
| Supplier |
Common product positioning |
Typical cupric chloride forms |
Evidence type |
| Sigma-Aldrich (Merck) |
Laboratory and production chemicals |
CuCl₂ anhydrous; CuCl₂ dihydrate |
Product catalog listings (manufacturer/distributor) |
| TCI Chemicals |
Lab and manufacturing chemicals |
CuCl₂ anhydrous; CuCl₂ dihydrate |
Product catalog listings |
| Fisher Scientific / Thermo Fisher |
Lab and manufacturing chemicals distribution |
CuCl₂ anhydrous; CuCl₂ dihydrate |
Product catalog listings |
| Alfa Aesar (Thermo Fisher brand) |
Lab chemicals |
CuCl₂ anhydrous; CuCl₂ dihydrate |
Product catalog listings |
| VWR (Avantor) |
Chemical distribution |
CuCl₂ anhydrous; CuCl₂ dihydrate |
Catalog distribution listings |
| VWR/Bedford Química (region-dependent resellers) |
Distribution in specific geographies |
CuCl₂ grades and packaging options |
Regional catalog listings |
| Acros Organics (part of Thermo Fisher) |
Chemical supply |
CuCl₂ anhydrous/dihydrate |
Product catalog listings |
| Comptoirs / specialty inorganic suppliers (region-dependent) |
Inorganic bulk supply |
CuCl₂ (anhydrous/dihydrate), often bulk |
Distributor listings (varies by country) |
Implication for pharma sourcing: pharma buyers typically do not buy “Cupric chloride” as a finished drug substance. They qualify the grade (purity, trace metals, water content), and demand supply controls (spec sheets, CoA, stability, traceability) matched to the intended use (API process aid, reagent, or formulation component).
What grades and identifiers should you demand from suppliers?
For sourcing decisions, the key is to lock the spec to the correct chemical identity and form:
Chemical identifiers to match on quotes and CoAs
- Cupric chloride (anhydrous): typically CAS 7646-85-7
- Cupric chloride (dihydrate): typically CAS 6522-22-5
Quality dimensions suppliers usually specify
- Assay / purity (e.g., 98%+ or higher for reagent grades)
- Water content (for dihydrate vs anhydrous)
- Heavy metal impurities and trace metals limits (relevant for pharma processing)
- Particle form and bulk density (affects handling and dosing consistency)
- Packaging (e.g., drum vs bottle; moisture barrier packaging)
How do procurement and compliance differ across these supplier types?
1) Major lab/reagent suppliers (Sigma-Aldrich, TCI, Thermo Fisher brands, VWR)
- Fast ordering and stable catalog availability.
- Specs are strong for research and pilot manufacturing.
- Pharma use depends on your qualification path for the specific grade and your intended step.
2) Chemical distributors/resellers
- Offer flexibility in geography and pricing.
- Delivery terms and documentation can vary by region.
- Quality file completeness depends on the underlying manufacturer.
3) Inorganic bulk manufacturers (often not household names in pharma)
- Best cost structure for high volume.
- Require deeper qualification and batch documentation checks.
What are the most common packaging and supply patterns?
Across supplier catalogs, cupric chloride commonly appears in:
- Small pack sizes (bottles) for lab use.
- Intermediate packs (kilos).
- Bulk packs (drums), especially for industrial grades.
Pharma procurement typically targets batch traceability and consistent physical form to manage variability in processing.
Practical supplier shortlist for sourcing teams (by buyer need)
If the use case is controlled lab or pilot sourcing
- Sigma-Aldrich (Merck)
- TCI Chemicals
- Thermo Fisher (Fisher Scientific / Alfa Aesar / Acros Organics)
- VWR (Avantor)
If the use case is bulk procurement
- Start with distributors that can provide manufacturer-backed CoAs and grade-specific specs
- Then qualify bulk inorganic manufacturers tied to your exact CAS and hydrate form
Key sourcing checks before PO issuance (what to insist on)
To prevent grade mix-ups and downstream processing variability, sourcing should require:
- Explicit confirmation of hydrate state (anhydrous vs dihydrate)
- CoA values for the parameters aligned to your internal acceptance criteria
- Lot traceability (manufacturer lot number matched to distributor lot)
- Evidence of compliance documentation that matches how your site qualifies inputs (documented supply chain controls, batch CoAs, and spec sheets)
Key Takeaways
- “Cupric chloride” in pharma procurement maps to copper(II) chloride (CuCl₂) with distinct anhydrous and dihydrate CAS identifiers.
- The most direct paths to supply are major chemical catalog suppliers: Sigma-Aldrich (Merck), TCI, Thermo Fisher (Fisher Scientific/Alfa Aesar/Acros), and VWR (Avantor).
- Pharma-ready sourcing is grade-driven. The decision hinges on hydrate state, purity/impurity profile, batch CoA traceability, and documentation completeness for the intended process or use.
FAQs
1) Is “cupric chloride” the same as copper(II) chloride (CuCl₂)?
Yes. Cupric chloride generally refers to copper(II) chloride, sold as anhydrous CuCl₂ or CuCl₂ dihydrate, with different CAS numbers and different moisture content.
2) Which form should pharma buyers specify: anhydrous or dihydrate?
Specify the hydrate state explicitly. Anhydrous and dihydrate differ in water content, which affects dosing and process conditions.
3) Do major lab suppliers stock cupric chloride in multiple grades?
Yes. Sigma-Aldrich, TCI, Thermo Fisher brands, and VWR typically offer reagent-grade and related specifications that buyers can select by product listing and CoA.
4) Can distributors supply cupric chloride for pharmaceutical use?
They can, but pharma qualification depends on whether they provide manufacturer-backed documentation, consistent grade control, and lot traceability.
5) What documentation should be mandatory for compliant sourcing?
At minimum: spec sheet for the selected grade, batch CoA tied to the same lot, hydrate confirmation (form), and clear traceability from manufacturer to your receiving lot.
References
[1] Sigma-Aldrich/Merck. Copper(II) chloride product listings (CuCl₂ anhydrous and CuCl₂ dihydrate). Merck/Sigma-Aldrich product pages.
[2] TCI Chemicals. Copper(II) chloride product listings (CuCl₂ anhydrous and CuCl₂ dihydrate). TCI product pages.
[3] Thermo Fisher Scientific. Fisher Scientific product listings for copper(II) chloride (CuCl₂ anhydrous and CuCl₂ dihydrate) and Thermo brands (Alfa Aesar, Acros Organics). Thermo product pages.
[4] VWR (Avantor). Copper(II) chloride product listings (CuCl₂ anhydrous and CuCl₂ dihydrate). Avantor/VWR catalog pages.
