1. Neuronal Signaling
  2. Amyloid-β
  3. Hematoxylin

Hematoxylin (Synonyms: Natural Black 1; Haematoxylin)

Cat. No.: HY-N0116 Purity: ≥98.0%
Handling Instructions

Hematoxylin (Natural Black 1), a naturally occurring flavonoid compound derived from the logwood tree, Haematoxylon campechianum. Hematoxylin is a nuclear stain in histology and is also a potent Aβ42 fibrillogenesis inhibitor with an IC50 of 1.6 µM.

For research use only. We do not sell to patients.

Hematoxylin Chemical Structure

Hematoxylin Chemical Structure

CAS No. : 517-28-2

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Free Sample (0.5-1 mg)   Apply Now  
Solution
10 mM * 1 mL in DMSO USD 55 In-stock
Estimated Time of Arrival: December 31
Solid + Solvent
10 mM * 1 mL
ready for reconstitution
USD 55 In-stock
Estimated Time of Arrival: December 31
Solid
100 mg USD 50 In-stock
Estimated Time of Arrival: December 31
1 g USD 60 In-stock
Estimated Time of Arrival: December 31
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10 g   Get quote  

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Based on 4 publication(s) in Google Scholar

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Description

Hematoxylin (Natural Black 1), a naturally occurring flavonoid compound derived from the logwood tree, Haematoxylon campechianum. Hematoxylin is a nuclear stain in histology and is also a potent Aβ42 fibrillogenesis inhibitor with an IC50 of 1.6 µM.

IC50 & Target

IC50: 1.6 µM (Aβ42 fibrillogenesis)[2]

In Vitro

When exposed to air, Hematoxylin is oxidized to reddish brown hematein. When oxidized to its hematein form and combined with a mordant, usually a metal salt, Hematoxylin stains tissue sections a deep blue to black color depending on the staining method. By itself, Hematoxylin is also amphoteric in its hematein form; it is red at acid pH and blue at alkaline pH. Differentiation following Hematoxylin staining removes nonspecific staining[1].
Hematoxylin treatment greatly alleviates Aβ42-induced cytotoxicity in SH-SY5Y cells. Hematoxylin is a potential agent against Aβ fibrillogenesis and cytotoxicity[2].
The Hematoxylin and Eosin (H&E) stained tissue section is the cornerstone of anatomical pathology diagnosis. The H&E procedure stains the nucleus and cytoplasm contrasting colors to readily differentiate cellular components[3].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

In Vivo

Guidelines (Following is our recommended protocol. This protocol only provides a guideline, and should be modified according to your specific needs).
The method of H&E staining[4]:
1. Place the glass slides that hold the paraffin sections in staining racks. Clear the paraffin from the samples in three changes of xylene for 2 min per change.
2. Hydrate the samples as follows.
i. Transfer the slides through three changes of 100% ethanol for 2 min per change.
ii. Transfer to 95% ethanol for 2 min.
iii. Transfer to 70% ethanol for 2 min.
iv. Rinse the slides in running tap water at room temperature for at least 2 min.
3. Stain the samples in Hematoxylin solution for 3 min.
4. Place the slides under running tap water at room temperature for at least 5 min.
5. Stain the samples in working eosin Y solution for 2 min.
6. Dehydrate the samples as follows.
i. Dip the slides in 95% ethanol about 20 times.
ii. Transfer to 95% ethanol for 2 min.
iii. Transfer through two changes of 100% ethanol for 2 min per change.
7. Clear the samples in three changes of xylene for 2 min per change.
8. Place a drop of Permount over the tissue on each slide and add a coverslip. View the slides using a microscope.

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Molecular Weight

302.28

Formula

C₁₆H₁₄O₆

CAS No.
Shipping

Room temperature in continental US; may vary elsewhere.

Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 50 mg/mL (165.41 mM; Need ultrasonic)

H2O : 6.67 mg/mL (22.07 mM; Need ultrasonic)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 3.3082 mL 16.5410 mL 33.0819 mL
5 mM 0.6616 mL 3.3082 mL 6.6164 mL
10 mM 0.3308 mL 1.6541 mL 3.3082 mL
*Please refer to the solubility information to select the appropriate solvent.
In Vivo:
  • 1.

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% saline

    Solubility: ≥ 2.5 mg/mL (8.27 mM); Clear solution

  • 2.

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in saline)

    Solubility: ≥ 2.5 mg/mL (8.27 mM); Clear solution

  • 3.

    Add each solvent one by one:  10% DMSO    90% corn oil

    Solubility: ≥ 2.5 mg/mL (8.27 mM); Clear solution

*All of the co-solvents are provided by MCE.
References
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Product Name:
Hematoxylin
Cat. No.:
HY-N0116
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