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Accelerate your research with custom DNA oligos consistently manufactured to your exact specifications using our proprietary synthesis platform. From routine PCR primers to complex gene constructs, we deliver high-quality synthetic DNA with industry-leading turnaround times.
Trusted by leading research and pharmaceutical institutions
10-200 bases, standard to ultramer
300 bp - 5,000 bp, linear dsDNA
NGS-verified, cloned into vector
Our proprietary synthesis platforms deliver more full-length product with better coupling efficiency than other suppliers.
We formulate all key synthesis reagents in-house and design, manufacture, and calibrate our own DNA synthesizers. This vertical integration enables us to internally monitor equipment performance and improve each step of the oligonucleotide synthesis process.
Every oligo we synthesize undergoes ESI mass spectrometry analysis to confirm that the full-length oligos in your tube possess the exact sequence you ordered. Capillary electrophoresis traces are provided for purified oligos.
>90% of small-scale DNA orders ship within 24 hours.
Fluorophores, quenchers, modified bases, linkers, and spacers.
Tubes, plates, pools, duplexes, custom normalization.
Get a customized quote for your custom DNA synthesis needs.
Proprietary platforms designed for optimal performance and reliability.
Optimized phosphoramidite chemistry with 99.4% coupling efficiency, delivering more full-length product than competitors at 98.5%.
Every oligo undergoes ESI mass spectrometry analysis. Capillary electrophoresis traces provided for purified products.
Multiple purification options to meet your specific application requirements, from standard desalting to HPLC and PAGE.
Comprehensive specifications to meet your research requirements.
| Parameter | Custom DNA Oligos | Gene Fragments | Clonal Genes |
|---|---|---|---|
| Length Range | 10 - 200 nt | 300 bp - 5,000 bp | 300 bp - 5,000 bp |
| Coupling Efficiency | 99.4% | N/A | N/A |
| Turnaround Time | 4-7 business days | 6-10 business days | 9-12 business days |
| Scale Range | 0.025 - 10 μmol | 100-1000 ng | 1 μg - 1 mg |
| Purification | Desalt, Cartridge, HPLC, PAGE | Standard | Microprep to Maxiprep |
| Verification | ESI-MS | Size/purity check | NGS-verified |
Our proven workflow ensures quality and efficiency at every stage.
Submit sequence and specifications
Proprietary platform synthesis
ESI-MS and CE verification
Lyophilized in tubes or plates
Fast shipping with QC report
Our synthesis services support research and development in multiple fields.
High-quality oligos for next-generation sequencing, qPCR, and multiplex PCR applications. Our proprietary synthesis platform delivers consistent results for demanding applications.
Custom gRNAs, donor templates, and HDR repair oligos for precise genome engineering applications. Quality matters when you're editing genomes.
Gene fragments and clonal genes for synthetic biology applications. From gene construction to pathway engineering, we support your innovative research.
Trusted by researchers worldwide for quality and reliability.
"The coupling efficiency is noticeably better than our previous supplier. We're getting more full-length product and better results in our PCR applications. The ESI-MS verification gives us confidence in every order."
"Fast turnaround times have been critical for our research deadlines. The 24-hour shipping for standard oligos is a game-changer. Quality control documentation is comprehensive and easy to access."
"We've been using this service for our CRISPR library construction. The oPools quality is excellent with high uniformity. Customer support is responsive and helpful with complex orders."
Our platform is backed by peer-reviewed research.
Sandahl AF, Nguyen TJD, Hansen RA, et al. Nature Communications. 2021.
Chemical oligonucleotide synthesis relies upon phosphoramidites. This work introduces on-demand synthesis methods for DNA synthesis phosphoramidite chemistry.
Ma Y, Zhang Z, Jia B, Yuan Y. Heliyon (Cell Press). 2024.
Comprehensive review of automated synthesis platforms, DNA assembly techniques, and biofoundries for accurate high-throughput DNA synthesis.
Laraman FJ, Fisk H, Whittaker DTE, et al. Organic Process Research & Development (ACS). 2021.
Study of phosphoramidite activation kinetics for oligonucleotide synthesis using custom-made synthesis columns.
Meares A, Susumu K, Mathur D, Lee SH, Mass OA, et al. ACS Omega. 2022.
Synthesis of substituted Cy5 phosphoramidite derivatives and incorporation into oligonucleotides using automated DNA synthesis.
Ghosh A, Banerjee A, Gupta S, et al. Journal of the American Chemical Society (ACS). 2024.
Unified phosphoramidite platform for synthesis of morpholino oligonucleotides and diverse chimeric backbones following standard DNA synthesis protocols.
Find answers to common questions about our service.
Get a customized quote for your Custom DNA Synthesis project. Our experts will respond within 24 hours.
CD Biosynsis is a leading customer-focused biotechnology company dedicated to providing high-quality products, comprehensive service packages, and tailored solutions to support and facilitate the applications of synthetic biology in a wide range of areas.