NorrChemica

Hematoxylin (powder) | CAS 517-28-2 | Purity: ≥99.0% | Natural Dye for Textiles & Crafts | RUO | EU Seller

€109,00 EUR

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Weight 25 g 50 g 100 g 10 g 5.0 g

CAS Number: 517-28-2
SMILES: [H][C@]12C3=C(C[C@@]1(O)COC1=C2C=CC(O)=C1O)C=C(O)C(O)=C3
InChI: InChI=1S/C16H14O6/c17-10-2-1-8-13-9-4-12(19)11(18)3-7(9)5-16(13,21)6-22-15(8)14(10)20/h1-4,13,17-21H,5-6H2/t13-,16+/m0/s1
InChIKey: WZUVPPKBWHMQCE-WKTCHCBJNA-N
Molecular Formula: C₁₆H₁₄O₆
Molecular Weight: 302.28 g/mol
Purity: >99.0%
Physical Form: Yellowish to brownish crystalline powder (Note: Oxidizes in air/light, may appear reddish/darker)
HS Code: 3203.00
Country of Origin: Finland
Shelf Life: > 24 months (If stored correctly)
Storage Conditions: Store tightly closed in a cool, dry place, protected from light and air.

🧫 Nuclear stain in histology (H&E): Alum/iron–mordanted lakes for crisp DNA/RNA contrast in paraffin sections.

🔬 Cytology (Pap) staining: High-definition nuclear detail and chromatin pattern assessment.

⚗️ Formulation studies: Component in Harris, Mayer, Gill, Weigert’s iron hematoxylin; progressive vs. regressive protocol optimization.

🔄 Oxidation/ripening research: Hematoxylin → hematein conversion, auto-oxidation control, preservative and shelf-life studies.

🔵 Bluing optimization: Evaluation of bluing reagents (e.g., Scott’s substitute, ammonia water) and pH/buffer effects.

🧪 Stain QC & calibration: Batch-to-batch standardization, colorfastness, section thickness/processing checks, proficiency testing.

🌿 Plant & mycology staining: Structural contrast in plant tissues (xylem/phloem) and fungal elements with suitable mordants.

📷 Imaging method development: Brightfield contrast tuning, spectral characterization, and workflow reproducibility.

Hazard Class (UN/DG): Not regulated
GHS Signal Word: None
GHS Hazard Statements: Not classified as hazardous under GHS.
GHS Precautionary Statements: Handle with gloves and eye protection. Avoid inhalation of dust. Not for human or animal use.
Dangerous Goods Notes: Not classified as dangerous goods for transport. No special handling required.

Identity Verified: Batch-verified via analytical QC (documentation available).
Direct EU Distribution: Dispatched from Finland, supporting fast delivery for EU-based laboratories.
Professional Logistics: Tracked courier shipping (UPS/Posti).

Supplied in tightly sealed containers suitable for laboratory handling.
Store tightly closed, dry, and protected from moisture and light. (Cold storage recommended for long-term stability.)
Retest period: see lot-specific CoA/label under recommended storage.

We operate under strict compliance standards for specialty reagents:

🇪🇺 EU & UK: Priority delivery typically in 2–5 business days.
🇺🇸 United States (DDP): 3–7 business days with prepaid duties and taxes.
🏔️ EFTA Countries (DDP): 3–7 business days with prepaid duties and taxes.
🌍 Worldwide Selected Locations: 7–14 business days.
Research Use Only (RUO): Not for human or veterinary use.
Payment: Processed via Wise (Bank Transfer) or Manual Invoice to meet specialty chemical trade regulations.

NorrChemica™ is a Finnish supplier of niche research reagents, focused on reliable EU shipping, transparent labeling, and technical support.

⚖️ Disclaimer: Sold strictly for laboratory research and technical applications. By purchasing this item, the buyer confirms professional intent.

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