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MHS32

Sigma-Aldrich

Mayer′s Hematoxylin Solution

Synonym(s):

(6aS,11bR)-7,11b-Dihydroindeno[2,1-c]chromene-3,4,6a,9,10(6H)-pentol, Delafield′s hematoxylin, Progressive stains

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€97.50

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1 L
€97.50

About This Item

MDL number:
UNSPSC Code:
41116124
PubChem Substance ID:
NACRES:
NA.47

€97.50


Please contact Customer Service for Availability

Request a Bulk Order

form

solution

Quality Level

shelf life

Expiry date on the label.

IVD

for in vitro diagnostic use

concentration

1 g/L

technique(s)

microbe id | staining: suitable

pH

2.4 (25 °C)

application(s)

hematology
histology

storage temp.

room temp

SMILES string

Oc1cc2C[C@@]3(O)COc4c(O)c(O)ccc4[C@H]3c2cc1O

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

InChI key

WZUVPPKBWHMQCE-XJKSGUPXSA-N

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General description

Used as a counterstain for procedures such as immunohistochemistry or laser microdissection.

Application

General purpose nuclear stain, progressive type. Used with hematoxylin and eosin staining.

Other Notes

1 g/L certified hematoxylin

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Ludivine C Litzler et al.
Nature communications, 10(1), 22-22 (2019-01-04)
Mechanisms regulating B cell development, activation, education in the germinal center (GC) and differentiation, underpin the humoral immune response. Protein arginine methyltransferase 5 (Prmt5), which catalyzes most symmetric dimethyl arginine protein modifications, is overexpressed in B cell lymphomas but its
J Verney et al.
The journal of nutrition, health & aging, 21(10), 1133-1141 (2017-12-01)
Effect of 3 different dairy protein sources on the recovery of muscle function after limb immobilization in old rats. Longitudinal animal study. Institut National de la Recherche Agronomique (INRA). The study took part in a laboratory setting. Old rats were
Maud Creze et al.
Muscle & nerve, 56(4), 787-796 (2016-12-23)
The ultrastructure of a nerve has implications for surgical nerve repair. The aim of our study was to characterize the fascicular versus fibrillar anatomy and the autonomic versus somatic nature of the fetal sciatic nerve (SN). Immunohistochemistry for vesicular acetylcholine
Lise Boussemart et al.
Nature, 513(7516), 105-109 (2014-08-01)
In BRAF(V600)-mutant tumours, most mechanisms of resistance to drugs that target the BRAF and/or MEK kinases rely on reactivation of the RAS-RAF-MEK-ERK mitogen-activated protein kinase (MAPK) signal transduction pathway, on activation of the alternative, PI(3)K-AKT-mTOR, pathway (which is ERK independent)
Abdelbasset Hamrouni et al.
Clinical cancer research : an official journal of the American Association for Cancer Research, 25(10), 3104-3114 (2019-02-28)
Mycosis fungoides is one of the most common types of extranodal T-cell lymphomas, considered to be caused by malignant transformation of the mature T cells residing in the skin. However, some clinical observations such as the multifocal distribution of mycosis

Questions

1–7 of 7 Questions  
  1. Is Mayers Hematoxylin (MHS16, MHS32, MHS80, MHS128) a regressive or progressive type of hematoxylin?

    1 answer
    1. Mayers hematoxylin is a progressive hematoxylin solution. When tissues are stained, only the nuclei are stained, and the cytoplasm is not stained with progressive hematoxylin formulations. As the cytoplasm is not stained, there is no need for acid differentiation. The intensity of the nuclei can be increased or decreased by adjusting the staining time used for the Mayers hematoxylin.

      Helpful?

  2. There is also a product listed on the website as Hematoxylin Solution According to Mayer. What is the difference between product 51275 and the various Mayer's Hematoxylin solutions?

    1 answer
    1. The basic formulations are the same. Both include chloral hydrate, although some of the concentrations could vary slightly. Product 51275 is not intended for In Vitro Diagnostic Use. Product 51275 is not CE Marked. The various Mayer's Hematoyxlin solutions are intended For In Vitro Diagnostic Use and are also CE Marked. Product inserts are available for various languages.

      Helpful?

  3. There are several Mayer's Hematoxylins listed on the website, beginning with the letters MHS.  What are the differences?

    1 answer
    1. Products MHS1, MHS16, MHS32, MHS80 and MHS128 are in fact the same product. In this case a unique product number was assigned to each package size. Other than the package size, there are no differences in formulation or use.

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  4. The slides were stained with Mayer's Hematoxylin but the nuclei are not blue. Why?

    1 answer
    1. The nuclei will originally appear as the same color as the solution. Only after the slides have been "blued" will the nuclei appear blue. The pH of the solution is acidic. This acidic pH promotes specific staining. However the slides must be washed in an neutral or alkaline solution for the color to shift to blue. Prolonged warm water washes in tap water are often sufficient for the bluing to occur. To shorten the time spent in washing, various bluing agents are often used to shorten the blueing process. Scott's Tap Water Substitute (Product No. S5134) is one such blueing agent.

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  5. Is chloral hydrate used in the preparation of Mayer's Hematoxylin?  Does this mean the solution is controlled as a DEA Schedule IV product?

    1 answer
    1. Yes, chloral hydrate is included in the formulation. No, the solution is not controlled as a DEA Schedule IV product. Once the choral hydrate is mixed with the remaining chemicals, it is impossible to obtain the chloral hydrate in a purified form.

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  6. What is the Department of Transportation shipping information for this product?

    1 answer
    1. Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

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  7. The website states that Mayer's Hematoxylin solution is a progressive type hematoxylin. What is a progressive type hematoxylin?

    1 answer
    1. Hematoxylin solutions are generally classified as either progressive or regressive. Progressive formulations will stain only the nucleus. No staining should occur within the cytoplasm. Regressive hematoxylins have higher dye contents and if used for sufficient periods of time will overstain both the nucleus and the cytoplasm. Acid differentiation is required to remove the excessive stain from the cytoplasm and nucleus. This differentiation take practice to master. Too much or too little stain can be removed during differentiation, resulting in poorly stained slides. For users lacking extensive experience with the Hematoxylin and Eosin staining procedure,  progressive hematoxylin formulations are often the better choice.

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