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HT501128

Sigma-Aldrich

Formalin solution, neutral buffered, 10%

histological tissue fixative

Synonym(s):

Formaldehyde, Methanal

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About This Item

MDL number:
MFCD00003274
UNSPSC Code:
12352114
PubChem Substance ID:
24895887
NACRES:
NA.47

biological source

synthetic

concentration

10% formalin (approx. 4% formaldehyde)

color

colorless

pH

6.90-7.10

density

1.080 g/cm3

application(s)

hematology
histology

storage temp.

room temp

InChI

1S/CH2O/c1-2/h1H2

InChI key

WSFSSNUMVMOOMR-UHFFFAOYSA-N

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General description

10% Neutral buffered formalin (NBF) is the most commonly used fixative throughout the world for light microscopy and is a somewhat forgiving fixative. 10% NBF is well suited for large throughput laboratories, and requires a relatively short period of fixation, but can also be used for the long-term storage of tissue. Formalin fixation is thought to form between the aldehydes and the proteins, creating a gel, thus retaining cellular constituents in their in vivo relationship. Once properly fixed, the tissue should be able to withstand the subsequent stages of tissue processing or staining.

Application

Formalin solution, neutral buffered, 10% has been used as a popular general purpose histological fixative to fix tissues.
Formalin solution, neutral buffered, 10% has been used in oil-red-o staining for the differentiation of 3T3-L1 preadipocyte cell line and mouse embryonic fibroblasts into adipocytes. It has been used in the histological analysis of rabbit′s eye and diabetic rat intestine.
Popular general purpose histological fixative.

Physical form

Neutral buffered solution

Pictograms

Health hazardExclamation mark
GHS08,GHS07

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Carc. 1B - Muta. 2 - Skin Sens. 1

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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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