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ImmunoReagents Inc

ImmunoReagents is the direct US manufacturer of quality antibodies and reagents used in research and in vitro diagnostics. Their products include a wide range of secondary antibodies covering a broad spectrum of immunoglobulins from various species and cross absorbed to provide high specificity. Primary polyclonal antibodies to hormones, cancer markers, cardiac markers and serum proteins are also available. Their knowledgeable and experienced staff can provide custom absorptions and purifications to meet specific requirements, including bulk manufacturing. All products are manufactured within cGMP guidelines and ISO quality system standards.

View All ImmunoReagents Inc Products
ImmunoReagents Inc


Most immunoassays depend on conjugated antibodies to provide visualization of the reaction. We have a wide selection of conjugated secondary antibodies to meet your every need. Our conjugated antibodies are designed for use in ELISA’s, FLISA’s, Western Blots, Immunofluorescence, Immunohistochemistry, Flow Cytometry, and others.

Available conjugates:

Horseradish Peroxidase (HRP)HRP is an enzyme found in the roots of horseradish. It is used in many immunoassays including ELISA’s. HRP reacts with chromogenic substrates TMB, DAB, and ABTS along with luminol in enhanced chemiluminescence (ECL) assays.
Alkaline Phosphatase (ALP)ALP is an enzyme derived from calf intestine that is commonly used in ELISA and Western Blot assays. Common substrates include NBT, BCIP, pNPP, and MUP.
Fluorescein Isothocyanate (FITC)FITC is a green colored fluorescein derivative used in wide-ranging applications including flow cytometry and IHC. FITC has Ex/Em spectrum peak wavelengths 488nm /519nm.
DyLight®DyLight® fluorescent probes are complete family of high intensity, photostable fluorescent tags. They are used in flow cytometry, ELISA, and fluorescence microscopy.
(See our available Fluorophores below)*
DyLight® Fluorophores
•DyLight® 350 (Ex = 353 nm; Em = 432 nm)
•DyLight® 405 (Ex = 400 nm; Em = 420 nm)
•DyLight® 488 (Ex = 493 nm; Em = 518 nm)
•DyLight® 550 (Ex = 562 nm; Em = 576 nm)
•DyLight® 594 (Ex = 593 nm; Em = 618 nm)
•DyLight® 633 (Ex = 638nm;Em = 658 nm)
•DyLight® 650 (Ex = 652 nm; Em = 672 nm)
•DyLight® 680 (Ex = 682 nm; Em = 715 nm)
•DyLight® 800
BiotinBiotin is a water soluble B vitamin that can be attached to antibodies with linkers. Biotinylated antibodies in combination with Streptavidin, Avidin, or Neutravidin.
Tetramethylrhodamine (TRITC)TRITC is a bright orange fluorescent dye ideally matched with the 532 laser line. It is used in cellular imaging such as fluorescence microscopy. TRITC has Ex/Em spectrum peak wavelengths 550 nm / 570 nm.


ImmunoReagents is widely regarded as the world’s premier secondary antibody manufacturing company. All of our antibodies are manufactured at our Raleigh, North Carolina facilities under GMP and ISO guidelines. We ensure that each lot we manufacture is both high purity and has matching specificity. We guarantee you will receive outstanding, top-performing antibodies each and every time.

We realize that no two assays are alike and sometimes “off the shelf” products are not always ideal. Speak to us about our custom antibody services for your next challenging project. We will work hard to provide you an optimal reagent.

Our goal is to build long-lasting partnerships with our customers. Your research is important to us and we will do our part to help you achieve your goals. When you succeed, we succeed.

Available Options
Purification:Affinity Purified / Ig Fraction / Serum
Purity:95% based on SDS PAGE
Concentration:8-12 mg/ml
Form:Liquid / Lyophilized
Cross Absorbed:Yes
Format:Whole Molecule / F(ab)’2 Fragment / Fab Fragment / Fc Fragment
Host Species:Bovine, Cat, Chicken, Dog, Donkey, Duck, Horse, Goat, Guinea Pig, Hamster, Human, Llama, Mouse, Pig, Rabbit, Rat, Sheep
Reactivity:Biotin, Bovine, Cat, Chicken, Dog, Donkey, Goat, Guinea Pig, Hamster, Horse, Human, Llama, Mouse, Pig, Rabbit, Rat, Sheep, Turkey

IVD Reagents

The ImmunoReagents’ Advantage

Quality Systems- Our company was built with quality at the forefront. Our quality system drives production processes to ensure our products meet your specifications and lot-to-lot consistency is achieved.

Experience- Decades of experience in the human and animal diagnostics industry including antibody production, purification and labelling of polyclonal and monoclonal antibodies.

Cost Savings- Our experienced staff enables us to deliver the highest quality products and services at competitive prices. Analyzing short-term production needs and long-term product demands allows us to reduce production costs.

Speed & Flexibility- We understand the importance of on-time delivery and production demands. IR responds rapidly and adjusts accordingly.

Popular IVD Reagents

  • Goat anti-Mouse IgG, (H&L)

  • Goat anit-Mouse IgG, Fc Specific

  • Goat anti-Rabbit IgG, (H&L)

  • Goat anti-Rabbit IgG, Fc Specific

  • Goat anti-Rat IgG, (H&L)

  • Donkey anti-Goat IgG, (H&L)

  • Rabbit anti-Goat IgG, (H&L)

  • Mouse IgG

  • Rat IgG

  • Human IgG