LSBio The Immunohistochemistry Antibody Company
  • Antibodies
  • All Antibodies
  • Primary Antibodies
  • Secondary Antibodies
  • IHC-plus Antibodies
  • Isotype Control Antibodies
  • ELISA Kits
  • All Kits
  • Sandwich ELISA Kits
  • Competitive EIA Kits
  • Cell-Based ELISA Kits
  • DNA-Binding ELISA Kits
  • Direct ELISA Kits
  • Functional ELISA Kits
  • Phospho-Specific ELISA Kits
  • Custom ELISA Kits
  • Proteins
  • All Proteins
  • Recombinant Proteins
  • Native Proteins
  • Over-expression Lysates
  • Cell and Tissue Lysates
  • Bio-active Proteins
  • Animal-free Proteins
  • Synthetic Peptides
  • Immunohistochemistry
  • Comprehensive IHC Reports
  • Custom IHC Services
  • TCR Screening Services
  • IHC-plus Antibodies
  • Other
  • Blocking Peptides
  • Immunohistochemistry Services

  • Work with LifeSpan to design a custom immunohistochemistry to address your specific biological question. Outsource the entire localization process without having to worry about finding and characterizing target specific antibodies, sourcing and validating difficult-to-find tissues, and having the ability to interpret the resulting immunostaining in relation to complex human pathologies.

  • TCR Screening Services

  • Test your therapeutic antibodies in immunohistochemistry against a broad panel of normal frozen human tissue types in order to determine potential unintended binding. Our non-GLP TCR services are designed on the FDA recommendation outlined in their "Points to Consider in the Manufacture and Testing of Monoclonal Antibody Products for Human Use".
Have a question?
  • Purchasing
  • Product Ordering Terms and Conditions
  • Holiday Schedule
  • About the LSBio Guarantee
  • About Our Rewards Program
  • Reference Material
  • About LSBio (LifeSpan BioSciences Inc.)
  • About Our 2-million Specimen Tissue Bank
  • About Our IHC Validation Process
  • About Our IHC-plus™ Immunohistochemistry Protocol
  • Publications
  • Secure Logins
  • Login to Our Secure FTP Site
  • Login to Our IHC Database
Contact Us

2401 Fourth Avenue Suite 900
Seattle WA 98121

Phone: 866-819-4732 (Toll Free North America)
206-374-1102 (International)

Fax: 866-206-6909 (Toll Free North America)
206-577-4565 (International)
How to Buy - Details about how to buy our products. - To submit a new order. - To submit questions about existing orders, pricing, availability, bulk quotes, proforma invoice requests, or other billing issues. - To request technical information requests about an LSBio product or its application. - To request information about fee-for-service contract IHC studies, IHC reports, distribution agreements, or general business development.

Worldwide Distributors List - To find your local distributor if you're not within the United States.
Quick Order ▾
View Cart

Anti-CD19 Antibody (clone 6D5, FITC) LS-C43609

Note: This antibody replaces LS-C4686, LS-C57377, LS-C348288, LS-C350119


Wt. Vol. Conc. Price
100 µg - 0.1 mg/ml $245
Inquire for larger quantities

LSBio (Direct) LSBio (Direct)

Alternate Forms of this Antibody

LS-C43612 Unconjugated
LS-C43606 APC Conjugated
LS-C43607 Biotin Conjugated
LS-C43608 Cy5, RPE Conjugated
LS-C43610 FITC Conjugated
LS-C43611 FITC Conjugated
LS-C43613 RPE Conjugated
LS-C43614 RPE Conjugated

Most Popular CD19 Antibodies

Anti-CD19 Antibody (C-Terminus, clone SP110) IHC-plus™ LS-B11667
Rabbit Monoclonal [clone SP110] (IgG) to Human CD19
IHC - Paraffin, Flow Cytometry
Immunohistochemistry Image
Anti-CD19 Antibody (clone MB19-1) LS-C350126
Mouse Monoclonal [clone MB19-1] (IgA) to Mouse CD19
Immunoprecipitation, Flow Cytometry
Anti-CD19 Antibody (C-Terminus) IHC-plus™ LS-B13077
Goat Polyclonal (IgG) to Human CD19
Human, Monkey, Mouse, Rat, Dog
IHC - Paraffin, Western blot
Immunohistochemistry - Paraffin Image

100% Guaranteed 100% Guaranteed
Rat Monoclonal [clone 6D5] (IgG2a) to Mouse CD19
IHC - Frozen, Immunoprecipitation, Flow Cytometry (applications tested for the base form of this product only)
FITC Conjugated


Mouse CD19
Mouse (tested or 100% immunogen sequence identity)
IgG2a Monoclonal [6D5]
Protein G purified


  • IHC - Frozen
  • Immunoprecipitation
  • Flow Cytometry (1:1)
  • (applications tested for the base form of this product only)

Specificity and Use

CD19 antibody was raised against human K562 cell line transfected with murine CD19.
Recognizes the murine CD19 cell surface antigen, a 95kD glycoprotein expressed by B lymphocytes. Clone 6D5 has been shown to recognize the same epitope as clone ID3 in cross-competition assays.
The applications listed have been tested for the base form of this product. Alternate forms, such as conjugated, azide-free, or ready-to-use, have not been tested. Flow Cytometry: Use 10 ul of the suggested working dilution to label 10^6 cells in 100 ul. The Fc region of monoclonal antibodies may bind non-specifically to cells expressing low affinity Fc receptors.


PBS, pH 7.4, 0.09% sodium azide, 1% BSA.
+4°C or -20°C, Avoid repeated freezing and thawing.
For research use only.

About CD19

P15391 NM_001770 NP_001761.3

CD19 Antibody, B-lymphocyte antigen CD19 Antibody, CD19 molecule Antibody, Differentiation antigen CD19 Antibody, T-cell surface antigen Leu-12 Antibody, B4 Antibody, CD19 antigen Antibody, CVID3 Antibody

Lymphocytes proliferate and differentiate in response to various concentrations of different antigens. The ability of the B cell to respond in a specific, yet sensitive manner to the various antigens is achieved with the use of low-affinity antigen receptors. This gene encodes a cell surface molecule which assembles with the antigen receptor of B lymphocytes in order to decrease the threshold for antigen receptor-dependent stimulation.

Requested From: United States
Date Requested: 10/27/2016

Get Social With Us! Follow us on Facebook Follow us on Google+ Follow us on LinkedIn
Copyright © 2016 LifeSpan BioSciences, Inc. All Rights Reserved Privacy Policy
Catalog Number