Invitrogen Secondary Antibodies

Browse our comprehensive portfolio of validated, conjugated and unconjugated secondary antibodies for fluorescent and chemiluminescent detection of primary antibodies in a wide range of applications, such as cell imaging, flow cytometry and western blotting.

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We offer a wide range of specific target and host species antibody conjugates:

Fluorescent Secondary Antibodies

Compare classic, Alexa Fluor and Alexa Fluor Plus fluorophore conjugate technologies and get quick links to different secondary antibody conjugates.

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Alexa Fluor and Alexa Fluor Plus Secondary Antibodies

Select from 18 different individual Alexa Fluor dyes and 6 different Alexa Fluor Plus dyes. See superior brightness and better photostability.

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Enzyme and Biotin-labeled Secondary Antibodies

Discover features and varieties of available horseradish peroxidase (HRP), alkaline phosphatase (AP), biotin, and other enzyme or affinity-tagged secondary antibody conjugates.

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CiteAb award for Invitrogen secondary antibodies


At Thermo Fisher Scientific we are proud to receive this award for our Invitrogen secondary antibodies. CiteAb, in awarding this distinction, looked for the company with the most secondary antibody citations from 2018 data.

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Secondary antibody selection table


Quick links to fixatives, mountants and other organelle staining reagents for use with secondary antibodies

Popular secondary antibody products

Goat Anti-Rabbit IgG (H+L) Secondary Antibody
Related secondary antibodies applications

Western blot reagents and instruments, chemiluminescent, colorimetric, and fluorescent detection substrates, blocking buffers, and secondary antibody conjugates

We offer a wide selection of ELISA kits targeted to disease-related proteins for research in immunology, cancer, neurodegeneration, stem cells, and more.

Reagents and kits for cellular imaging applications such as fluorescence microscopy, IHC, ISH, HCS, LCM, and small animal in vivo imaging

Antibodies, cell functional reagents, Invitrogen Attune flow cytometer, and instrument calibration products

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