NorrChemica
Eosin Y (Free acid) | CAS: 15086-94-9 | High-Purity powder ≥ 97%, 3-rd Party Tested | Histology & Microscopy Counterstain
Eosin Y (Free acid) | CAS: 15086-94-9 | High-Purity powder ≥ 97%, 3-rd Party Tested | Histology & Microscopy Counterstain
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🧪 Technical Specifications
- CAS Number: 15086-94-9
- EC Number: 239-138-3
- Molecular Formula: C₂₀H₈Br₄O₅
- Molecular Weight: 647.89 g/mol
- Purity: ≥ 97 %
- Physical Form: Red–orange crystalline powder
- HS Code: 3204.12
- Country of Origin: Finland
- Shelf Life: ≥ 36 months (Stored in proper conditions)
- Storage Conditions: Store tightly closed in a cool, dry place away from light
🔬 Common Scientific Applications
🧫 Histology & cytology counterstain: Acidic xanthene dye providing pink/red cytoplasmic contrast (e.g., H&E with hematoxylin).
🔬 Brightfield & fluorescence imaging: Fluorescent dye for slide work; verify instrument filters (matrix/pH dependent spectra).
🧪 Protein staining & gels: Post-electrophoresis protein visualization and general lab dyeing of biomaterials.
🧷 Materials & thin films: Dye-doped polymers/sol-gels for optical coatings, sensors, and color standards.
📈 Spectrophotometric reference: Strong visible absorbance; calibration/checks for dye-binding and colorimetric assays.
🌿 Plant tissue staining: Contrast for parenchyma/cell walls in botanical sections (with compatible counterstains).
⚗️ Formulation/ink R&D: Colorant in prototype inks, markers, and microfluidic tracer formulations.
R&D use only. Staining intensity and fluorescence depend on pH, solvent, fixation, and protocol. Confirm excitation/emission and handling in your SDS/CoA and method notes.
⚠️ Safety & Transport
- Hazard Class (UN/DG): Non-hazardous (no UN number assigned)
- GHS Signal Word: Warning
- GHS Hazard Statements: H319 – Causes serious eye irritation
- GHS Precautionary Statements: P280 • P305 + P351 + P338 • P337 + P313
- Dangerous Goods Notes: Not regulated under ADR/RID, IMDG, or IATA
🔎 Advanced Identifiers
- PubChem CID: 27020
Eosin Y (Free acid) | CAS: 15086-94-9 | High-Purity powder ≥ 97%, 3-rd Party Tested
🧪 The NorrChemica™ Standard
- European Certified Origin: Sourced exclusively from accredited EU manufacturers. Full supply chain traceability.
- Analytical Purity: Identity-verified material. Strictly meets or exceeds defined grade specifications.
- 🇪🇺 Intra-EU Trade: Frictionless, tariff-free shipping within the European Union (Single Market).
- 🌍 Global Support: Full customs documentation provided for UK, Canada, and EFTA orders.
- Professional Logistics: Shipped from Finland via premium tracked couriers (UPS/Posti).
🧰 Packaging & Storage
- Supplied in sealed HDPE or amber glass containers
- Store tightly closed in a cool, dry place
- Shelf life: ≥ 36 months under recommended conditions
- Batch-specific CoA and SDS provided
⚠️ Compliance & Safety
- Not for human or veterinary use.
- Mandatory Safety: Always follow the safety instructions and required Personal Protective Equipment (PPE) as detailed in the Safety Data Sheet (SDS).
- Regulatory Status: The specific classification is product-dependent; see the SDS supplied with your order.
- Documentation: A Certificate of Analysis (CoA) and GHS-compliant SDS are available for every order.
- Payment: To ensure regulatory compliance for specialty chemicals, we process orders via Wise (Bank Transfer) or Manual Invoice.
Shipping & Delivery
We ship from our facility in Finland (EU).
- 🇪🇺 EU & UK: typically 2–5 business days.
- 🌍 Selected destinations (e.g., Canada, Japan, Australia, EFTA): typically 4–12 business days.
- ❌ 🇺🇸 United States: shipping unavailable.
- 🧾 Full documentation (CoA + GHS-compliant SDS) included.
🧬 About NorrChemica™
NorrChemica™ is a Finnish supplier of high-purity specialty reagents and niche research materials. We focus on reliable EU shipping, transparent labeling, and accessible pricing for technical users worldwide.
⚖️ Terms of Sale & Disclaimer Sold strictly for laboratory research, analysis, and technical applications. Not for human consumption or food use. By purchasing this item, you confirm professional or educational intent.
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