All Photos(1)




Anti-PECAM-1 Antibody, clone 2H8, Azide Free

clone 2H8, Chemicon®, from hamster(Armenian)

Sign Into View Organizational & Contract Pricing

CD31, PECAM-1, Platelet endothelial cell adhesion molecule

biological source

hamster (Armenian)

Quality Level

antibody form

purified immunoglobulin

antibody product type

primary antibodies


2H8, monoclonal

species reactivity

mouse, canine




electron microscopy: suitable
flow cytometry: suitable
immunocytochemistry: suitable
immunofluorescence: suitable
immunohistochemistry: suitable
immunoprecipitation (IP): suitable
neutralization: suitable



NCBI accession no.

UniProt accession no.

shipped in

dry ice

target post-translational modification


Gene Information

Related Categories

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item


Anti-PECAM-1 Antibody, clone 390

species reactivity

mouse, canine

species reactivity


species reactivity

human, canine

species reactivity


antibody form

purified immunoglobulin

antibody form

purified immunoglobulin

antibody form

purified antibody

antibody form

purified immunoglobulin

Gene Information

dog ... Pecam1(610775)
mouse ... Pecam1(18613)

Gene Information

human ... PECAM1(5175)

Gene Information

human ... PECAM1(5175)

Gene Information

human ... PECAM1(5175)

biological source

hamster (Armenian)

biological source


biological source


biological source


NCBI accession no.


NCBI accession no.


NCBI accession no.


NCBI accession no.


Still not finding the right product?  

Give our Product Selector Tool a try.

General description

CD31, also known as platelet endothelial cell adhesion molecule 1 (PECAM1), is a type I integral membrane glycoprotein and a member of the immunoglobulin superfamily of cell surface receptors. It is constitutively expressed on the surface of endothelial cells, and concentrated at the junction between them. It is also weakly expressed on many peripheral lymphoid cells and platelets.

CD31 has been used to measure angiogenesis in association with tumor recurrence. Other studies have also indicated that CD31 and CD34 can be used as markers for myeloid progenitor cells and recognize different subsets of myeloid leukemia infiltrates (granular sarcomas).


React s with the 130-140 kDa protein, PECAM-1 found on mouse monocytes, platelets, granulocytes and endothelial cells. 2H8 effectively inhibits transmigration of activated polymophonuclear cells and monocytes across the endothelium. In a mouse model for acute peritonis - 2H8 blocks acute inflammation.


D10.G4.1 murine T cells (Bogen, S.A., et al. (1992). Am. J. Pathol. 141(4):843 -854).
Epitope: Extracellular domain.


Anti-PECAM-1 Antibody, clone 2H8, Azide Free detects level of PECAM-1 & has been published & validated for use in Elecron Microscopy, Flow Cytometry, Immunocytochemistry, Immunofluorescence, Immunohistochemistry, Immunoprecipitation, and Neutralization Assay.
Immunofluorescence Analysis: Representative lots immunostained endothelial blood vessel cells in 4% paraformaldehyde-fixed frozen tumor sections from mice and dogs as a means for assessing lymph vessel density in tumor xenografts by fluorescent immunohistochemistry (Donat, U., et al. (2012). PLoS One. 7(9):e45942; Gentschev, I., et al. (2012). PLoS One.7(5):e37239).
Immunofluorescence Analysis: A representative lot immunostained endothelial cells in formalin-fixed, paraffin-embedded murine peritoneum sections by fluorescent immunohistochemistry (Tanabe, K., et al. (2007). Kidney Int. 71(3):227-238).
Immunocytochemistry Analysis: A representative lot immunostained 4% paraformaldehyde-fixed endothelial cells differentiated from murine ESCs in cultures (Purpura, K.A., et al. (2008). Stem Cells. 26(11):2832-2842).
Immunocytochemistry Analysis: Clone 2H8 immunostained 3% paraformaldehyde-fixed, 0.5% NP-40-permeabilized COS-7 transfectants expressing murine, but not human, CD31 by fluorescent immunocytochemistry (Bogen, S.A., et al. (1992). Am. J. Pathol. 141(4):843-854).
Neutralization Analysis: A representative lot, when injected intravenously in mice, blocked leukocyte emigration in response to thioglycollate injection (Bogen, S., et al. (1994). J. Exp. Med. 179(3):1059-1064).
Neutralization Analysis: A representative lot blocked murine PECAM-mediated aggregation of mouse L cells (Xie, Y., and Muller, W.A. (1993). Proc. Natl. Acad. Sci. U. S. A. 190(12):5569-5573).
Flow Cytometry Analysis: A representative lot detected the expression of exogenously transfected murine CD31 on the surface of mouse L cells (Xie, Y., and Muller, W.A. (1993). Proc. Natl. Acad. Sci. U. S. A. 190(12):5569-5573).
Flow Cytometry Analysis: Clone 2H8 detected CD31 immunoreactivity on the surface of various murine B- and T-cell lines (Bogen, S.A., et al. (1992). Am. J. Pathol. 141(4):843-854).
Immunoprecipitation Analysis: A representative lot immunoprecipitated exogenously expressed murine, but not human, CD31 from COS-7 transfectants (Xie, Y., and Muller, W.A. (1993). Proc. Natl. Acad. Sci. U. S. A. 190(12):5569-5573).
Immunoprecipitation Analysis: Clone 2H8 immunoprecipitated CD31 from murine CTLL T lymphocytes and Sp2/0 B lymphocytes (Bogen, S.A., et al. (1992). Am. J. Pathol. 141(4):843-854).
Electron Microscopy Analysis: Clone 2H8 was biotinylated and immunostained lymphocytes in 0.01% glutaraldehyde-/2% formaldehyde-fxed frozen reactive lymph node tissues from KLH-immunized mice (Bogen, S.A., et al. (1992). Am. J. Pathol. 141(4):843-854).
Immunohistochemistry Analysis: Clone 2H8 immunostained lymphocytes adherent to the sinusoidal and postcapillary venular endothelium of frozen reactive lymph node tissues from KLH-immunized mice (Bogen, S.A., et al. (1992). Am. J. Pathol. 141(4):843-854).
Research Category
Cell Structure
Research Sub Category
Adhesion (CAMs)


Replaces: 04-1074

Physical form

Format: Purified
Protein A Purified mouse immunoglobulin in 20 mM sodium phosphate, 250 mM NaCl, pH. 7.6, containing no preservatives.
Protein A purified

Storage and Stability

Maintain for 2 years at -20°C from date of shipment. Aliquot to avoid repeated freezing and thawing. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.

Analysis Note

Mouse cell lung tissue

Other Notes

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.

Legal Information

CHEMICON is a registered trademark of Merck KGaA, Darmstadt, Germany


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Storage Class

12 - Non Combustible Liquids




Not applicable


Not applicable

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’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).


Product Number
Pack Size/Quantity

Additional examples:





enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Zhi Hong Lu et al.
PloS one, 8(12), e83933-e83933 (2014-01-01)
New approaches targeting metastatic neovasculature are needed. Payload capacity, cellular transduction efficiency, and first-pass cellular uptake following systemic vector administration, motivates persistent interest in tumor vascular endothelial cell (EC) adenoviral (Ad) vector targeting. While EC transductional and transcriptional targeting has
Hedgehog signaling in the posterior region of the mouse gastrula suggests manifold roles in the fetal-umbilical connection and posterior morphogenesis.
Daane, JM; Downs, KM
Developmental Dynamics null
Mitochondrial oxidative phosphorylation reserve is required for hormone- and PPAR? agonist-induced adipogenesis.
Ryu, MJ; Kim, SJ; Choi, MJ; Kim, YK; Lee, MH; Lee, SE; Chung, HK; Jung, SB; Kim, HJ; Kim et al.
Molecules and Cells null
Formulation optimization and in vivo proof-of-concept study of thermosensitive liposomes balanced by phospholipid, elastin-like polypeptide, and cholesterol.
Park, SM; Cha, JM; Nam, J; Kim, MS; Park, SJ; Park, ES; Lee, H; Kim, HR
Testing null
Yunho Kim et al.
Nature communications, 7, 10347-10347 (2016-01-14)
Hypoxia-inducible factor-1α (HIF-1α) mediates hypoxic responses and regulates gene expression involved in angiogenesis, invasion and metabolism. Among the various HIF-1α posttranslational modifications, HIF-1α methylation and its physiological role have not yet been elucidated. Here we show that HIF-1α is methylated


Need tips on how to improve your flow cytometry analysis? Check out this flow cytometry troubleshooting guide with possible causes and solutions for most common problems encountered during flow cytometry experiments, including a loss or lack of signal, high background, decreasing acquisition rates, and more.


Explore our flow cytometry guide to uncover flow cytometry basics, traditional flow cytometer components, key flow cytometry protocol steps, and proper controls.

Learn key steps in flow cytometry protocols to make your next flow cytometry experiment run with ease.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service