Reagents

What Are Lab Reagents in Molecular Biology?

Lab reagents are the chemical and biological materials — enzymes, buffers, kits, and nucleic acid components — that drive molecular biology experiments. They cover DNA and RNA extraction, amplification by PCR or qPCR, gene editing, epigenetic analysis, microbiome profiling, and sequencing library preparation. The right reagent choice determines assay sensitivity, yield, and reproducibility. **If your workflow involves nucleic acids, there is a specific reagent category that applies.**

What you will find:

• Molecular biology: for cloning, nucleic acid purification, PCR, and qPCR workflows

• Cell biology: for cell culture, transfection, protein expression analysis, and functional assays

• Electrophoresis: for protein, DNA, and RNA separation analysis

• Protein analysis: for quantification, separation, labeling, and expression studies

• RNA analysis: for gene expression profiling, RT-qPCR, and transcriptomics

• Epigenetics: for methylation assessment and chromatin studies

• Microbiomics: for accurate microbial DNA isolation and profiling 

• Sequencing: for accurate genetic analysis using NGS and Sanger sequencing technologies.

• Gene editing: for genetic engineering and CRISPR experiments 

• DNA/Cloning services products: including endotoxin-free and transfection-grade plasmid construction, molecular cloning, and sequence verification

• Chemicals: for cell culture studies, biochemical assays, and advanced research applications. 

How to Choose Reagents for Your Lab

Application first, brand second
Match the reagent to the assay: Zymo Research kits are heavily cited in published DNA/RNA purification and epigenetics methods; ABM reagents cover CRISPR, enzymes, and RT-PCR; Eurofins Genomics serves sequencing preparation.
 
Lot-to-lot consistency
For repeated protocols, confirm that a supplier provides lot certificates and that SKUs remain stable between orders. MBP stocks confirmed product lines rather than acting as a spot-market broker.
 
Format and scale
Consider whether you need a small-scale research kit (10–50 reactions) for method development or a larger format for routine production runs. Many Zymo, Azura, Accuris and ABM kits are available in multiple reaction counts.
 
Compatibility with downstream steps
A DNA purification kit used before NGS library prep must meet the purity spec of the sequencing platform. Check A260/A280 and A260/A230 targets before selecting a purification kit.

Specifications Context

Reagent specifications that matter in practice: enzyme unit definitions (1 U typically defined as the amount converting 1 nmol substrate per minute); kit elution volume (affects downstream concentration); storage temperature (−20 °C vs 4 °C impacts shipping cost and shelf life). As of 2026, most suppliers publish digital Certificates of Analysis (COA) accessible by lot number — confirm COA availability before placing a bulk order.
 
For procurement teams, MBP accepts purchase orders and provides institutional pricing for high-volume users. Contact the MBP team today!