Biosimilar Antibodies

Research-grade recombinant biosimilar antibodies and receptor-trap proteins that reproduce the binding specificity of reference biologic drugs — for use as binding reagents, functional blocking tools, and PK/ADA assay controls. For Research Use Only.

1396Products
1396 products
Image ProductProduct Type ApplicationPrice Status ACTION
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Target: TRBV9
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
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Target: KLK2
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
PE-conjugated Anti-PD-1(rosnilimab biosimilar) mAb – Figure 1 of 1
Target: PD-1
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
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Target: NKG2D
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
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Target: ILDR2
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
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Target: IL1RL2
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
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Target: IL13RA1
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
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Target: MUC1
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
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Target: LEPR
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
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Target: MET
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
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Target: TNFSF15
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
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Target: LILRB4
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
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Target: IL1RL2
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
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Target: IL1RAP
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
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Target: PTK7
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
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Target: IL31RA
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
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Target: LY6E
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
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Target: MUC18
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
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Target: IL5RA
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
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Target: TEM1
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
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Target: STEAP1
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
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Target: NKG2D
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
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Target: STEAP1
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
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Target: ROR1
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
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Target: TIM3
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
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Target: TNFα
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
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Target: IGF-1R
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
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Target: TNFα
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
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Target: KLRG1
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
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Target: ROR2
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
PE-conjugated Anti-TM4SF1 (AGX101 biosimilar) mAb – Figure 1 of 1
Target: TM4SF1
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
PE-conjugated Anti-PDL1 (durvalumab biosimilar) mAb – Figure 1 of 1
Target: PDL1
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
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Target: OSMR
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
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Target: HTRA1
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
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Target: MASP2
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer
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Target: IL1B
Primary Antibody Flow Cytometry
$192.00
Regular price $192.00
In Stock at Manufacturer

About Biosimilar Antibodies

This collection brings together research-grade recombinant antibodies (and receptor-trap fusion proteins) that reproduce the antigen-binding specificity of clinically important reference biologics — anti-TNF, anti-VEGF, anti-PD-1/PD-L1, anti-HER2, anti-CD20 and many more. Each reagent binds the same target as its reference drug, so it can serve as a positive control, a functional blocking/neutralizing tool, a binding reagent, and a reference standard in pharmacokinetic (PK) and anti-drug-antibody (ADA) bioanalysis. All products are For Research Use Only (RUO) and are not the licensed therapeutic products.

Choosing how to work with a reference biologic: three complementary reagents

A biosimilar research antibody is one of three reagents used to study or measure a biologic drug. They are complementary, not interchangeable — most immunogenicity and PK workflows use all three.

DimensionBiosimilar antibody (this collection)Anti-idiotypic antibodyPK / ADA ELISA kit
What it isRecombinant copy of the drug's variable regionAntibody raised against the drug's paratope/idiotypeReady-to-run immunoassay
What it bindsThe drug's antigen (e.g. TNF-α, PD-1, HER2)The reference/biosimilar drug itselfThe drug, or anti-drug antibodies, in a sample
Primary usePositive control, blocking/neutralization, binding reagentCapture or detect the drug; ADA bridging assaysQuantify drug level (PK) or immunogenicity (ADA)
Reads outBinding & function (ELISA, SPR/BLI, flow, neutralization)Drug concentration when paired in an assayConcentration from a standard curve
Best forAssay development, functional studies, controlsBuilding a custom PK or ADA assayRoutine sample quantification
FormatPurified protein (mAb, Fab, fusion or ADC)Purified antibodyMicroplate kit

How to read this: Use the biosimilar antibody as your positive control and functional tool. To measure the drug in samples, pair it with an anti-idiotypic antibody to build a PK or ADA assay, or use a ready-made ELISA kit for routine quantification. If you are characterizing binding or blocking activity, start here; if you are quantifying drug or anti-drug-antibody levels, add the matching kit.

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