Southern RNA
PRODUCTS / Co Cap™ A mRNA cap analog

Consistent mRNA capping for reliable results

Co Cap™ A is a high-performance mRNA co-transcriptional cap analog designed to improve the stability and translational efficiency of mRNA molecules. By protecting transcripts from 5’–3’ exonuclease degradation, it helps ensure stronger protein expression and more reliable results across research, development, and manufacturing applications.

KEY CHARACTERISTICS

Reliable, Scalable, and Flexible mRNA Capping

Co Cap™ A is designed to deliver consistent performance for mRNA co-transcriptional capping, whether for research, process development, or early clinical applications. Its versatile format, scalable supply, and high-quality standards make it suitable for a wide range of RNA programmes.

Cap analog in ammonium salt form for co-transcriptional capping of mRNA

Scalable supply from milligrams to kilograms with rapid turnaround

5’ Cap 1 mRNA suitable for direct use in in vitro transcription

Custom options including sodium salt form and other cap variants

Flexible packaging available off-the-shelf or in bulk as powder or solution

Available in research-grade and GMP-grade quality

USE CASES

For Versatile Research And Development

In vitro transcription capping

Add Co Cap™ A directly to your IVT reaction for efficient co-transcriptional 5′ capping, removing the need for a separate enzymatic step.

Vaccine & therapeutic mRNA

Produce capped mRNA with improved stability and translational efficiency, from research through early clinical development.

Process development & cost reduction

Lower the per-batch cost of capping during development and scale-up, supporting parallel candidate screening.

Scale-up to supply

Move from research- grade to GMP-grade Co-Cap™ A as your programme advances, with scalable supply from milligrams to kilograms.

QUALITY & COMPLIANCE
getty-images-P9M2ilgcfm0-unsplash 1 (1)

Cost-Efficient Capping for Scalable Development

Co Cap™ A is cost-effective and can support parallel development of your candidates, relieving your budget of Cap cost. Our reagent is available in two grades (research and GMP), and will be able to carry your research and development all the way to commercial manufacturing

 

  • Consistent Quality – Co Cap™ A’s proprietary manufacturing process ensures batch-to-batch consistency and high purity.
  • Increase Efficacy – The use of Co Cap™ A results in mRNA molecules with a higher level of stability, leading to increased efficacy of mRNA-based therapeutics.
  • Broad Applications – Co Cap™ A is compatible with a wide range of mRNA-based therapeutic applications, including vaccines, gene therapies, and cancer treatments.
MANUFACTURING

Produced under controlled and documented systems

Co Cap™ A is manufactured under controlled, documented processes with defined raw materials and quality review before release. Each batch is tested for identity and purity and supplied with a Certificate of Analysis, ensuring batch-to- batch consistency and traceability.

448a019ffb419dcc30034ea0290cf2f917e5bfe6
253abaa0e12dbdf15aa35900d08a6696921e003d
b1c3191a0331903a911d876873d8ee54012a4dfe
TECHNICAL SUPPORT

Expert Guidance at Every Stage

Our scientific team provides hands-on support for experimental design, construct optimisation, and troubleshooting.

GET EXPERT SUPPORT
CUSTOMISATION

Tailored Solutions to Meet Your Needs

We offer bespoke RNA solutions, including sequence optimisation, formulation adjustments, and scale-specific production, to match your programme requirements.

EXPLORE CUSTOM SOLUTIONS
FAQS

Your Questions Answered

Our FAQ section addresses the most common technical and compliance queries, providing clarity on our capabilities, processes, and quality systems.

Yes, our facilities produce GMP-aligned and clinical-grade mRNA and plasmid DNA suitable for early-phase trials.

We follow GMP-aligned processes, robust documentation, and quality oversight to meet regulatory expectations and support submissions.

We offer flexible production from milligram-scale research material to multi-gram clinical-grade batches.

Yes, our in-house analytical team supports identity, purity, impurity profiling, and stability testing across all projects.

Absolutely. Our team develops reproducible processes for smooth transition from research-scale to GMP-aligned clinical production.

Other Products

Frame (9)

mRNA

Southern RNA provides starting material for ATMP GMP manufacturing.

FIND OUT MORE

RNA Development & Manufacturing

Southern RNA offers plasmid DNA and mRNA services, combining flexible manufacturing with analytics. We support scalable, high-quality nucleic acid production.

EXPLORE OUR SERVICES