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MHS1

Sigma-Aldrich

Mayer′s Hematoxylin Solution

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About This Item

MDL number:
UNSPSC Code:
41116124
PubChem Substance ID:
NACRES:
NA.47
Pricing and availability is not currently available.

form

solution

Quality Level

shelf life

Expiry date on the label.

IVD

for in vitro diagnostic use

concentration

1 g/L

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 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Amanpreet Kaur et al.
Cancer discovery, 9(1), 64-81 (2018-10-04)
Physical changes in skin are among the most visible signs of aging. We found that young dermal fibroblasts secrete high levels of extracellular matrix (ECM) constituents, including proteoglycans, glycoproteins, and cartilage-linking proteins. The most abundantly secreted was HAPLN1, a hyaluronic
Liliana Osório et al.
Cell cycle (Georgetown, Tex.), 13(10), 1571-1582 (2014-03-29)
Isthmin 1 (ISM1) constitutes the founder of a new family of secreted proteins characterized by the presence of 2 functional domains: thrombospondin type 1 repeat (TSR1) and adhesion-associated domain in MUC4 and other proteins (AMOP). ISM1 was identified in the
Ande Satyanarayana et al.
FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 26(1), 309-323 (2011-10-13)
Obesity is a major health concern that contributes to the development of diabetes, hyperlipidemia, coronary artery disease, and cancer. Id proteins are helix-loop-helix transcription factors that regulate the proliferation and differentiation of cells from multiple tissues, including adipocytes. We screened
Madhurima Chatterjee et al.
Alzheimer's research & therapy, 10(1), 52-52 (2018-06-03)
Synaptic and axonal loss are two major mechanisms underlying Alzheimer's disease (AD) pathogenesis, and biomarkers reflecting changes in these cellular processes are needed for early diagnosis and monitoring the progression of AD. Contactin-2 is a synaptic and axonal membrane protein
Lauren E Ragle et al.
Mechanisms of development, 159, 103565-103565 (2019-07-25)
Long-label retention has been used by many to prove Cairns' immortal strand hypothesis and to identify potential stem cells. Here, we describe two strategies using 5-ethynl-2'-deoxyuridine (EdU) to identify and understand the distribution of long-label-retaining mammary epithelial cells during formation

Protocols

Use this protocol to for the entire immunohistochemistry (IHC) procedure through staining and visualization of specific antigens in paraffin-embedded tissue sections.

Use this protocol to for the entire immunohistochemistry (IHC) procedure through staining and visualization of specific antigens in paraffin-embedded tissue sections.

Use this protocol to for the entire immunohistochemistry (IHC) procedure through staining and visualization of specific antigens in paraffin-embedded tissue sections.

Use this protocol to for the entire immunohistochemistry (IHC) procedure through staining and visualization of specific antigens in paraffin-embedded tissue sections.

Questions

1–6 of 6 Questions  
  1. 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.

      Helpful?

  2. 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.

      Helpful?

  3. 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?

  4. 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.

      Helpful?

  5. 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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  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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