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H2779

Sigma-Aldrich

HistoChoice® Clearing Agent

greener alternative

alternative to toluene and xylene

Synonym(s):

dewaxing mixture for paraffin tissue sections

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About This Item

UNSPSC Code:
12352200
NACRES:
NA.47

Quality Level

form

liquid

greener alternative product characteristics

Designing Safer Chemicals
Learn more about the Principles of Green Chemistry.

color

colorless

density

0.760-0.820 g/mL

application(s)

hematology
histology

greener alternative category

storage temp.

room temp

General description

HistoChoice® is a patented, complex mixture of agents that allow tissues to retain their structure, antigenic sites, and nucleic acid sites. It is a non-toxic, non-cross-linking fixative formulated to replace formaldehyde-based fixation. This formulation in non-citrus, contains no mercury, formaldehyde, or glutaraldehyde.

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has Inherently Safer Chemistry, compared to the standard use of formalin for tissue processing.

Application

HistoChoice® Clearing Agent has the following applications:
  • It is suitable as an alternative to toluene and xylene for dewaxing paraffin tissue sections. Prepared slides are suitable for antibody probing applications and in situ hybridizations.
  • It has been employed in a study to explain the recalcitrance of lignocellulosic plant cell walls to enzymatic degradation.
  • It has been used to develop a novel method to improve sensitivity for the localization of miRNA and their target transcripts in plants.
  • It has been used to study the correlation of cytoplasmic ADP-ribosylation levels with markers of patient outcome in human cancers.

Biochem/physiol Actions

Fixation with HistoChoice® works well in immunohistology applications where its non-cross-linking traits are conducive to epitope retrieval and identification by primary antibodies to extracellular matrix components.

Features and Benefits

  • Non-toxic, non-carcinogenic, and odorless.
  • Non-flammable.
  • Preserves native antigenic and nucleic acid sites.
  • Compatible with many organic mounting media.
  • Dissolves wax faster and evaporates slower than xylene.
  • Can be used in automated processors.
  • Tissues retain their original structure.

Legal Information

HistoChoice is a registered trademark of Amresco, Inc.

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Exclamation mark

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Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

10 - Combustible liquids

wgk_germany

WGK 3

flash_point_f

142.0 °F

flash_point_c

61.1 °C

ppe

Eyeshields, Gloves, type ABEK (EN14387) respirator filter


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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