Antisense Oligo Concentration from A₂₆₀ Calculator
Convert an A₂₆₀ absorbance reading into the concentration (ng/µL and molar) of a antisense oligo using its sequence-derived extinction coefficient.
- 1Summed extinction coefficient (per-nt approximation)
ε ≈ 226,500 M⁻¹cm⁻¹ - 2Beer–Lambert (l = 1 cm)
c = A260·d/ε = 2.208e-6 mol/L - 3Mass concentration (MW ≈ length × 330 g/mol; g/L → ng/µL × 1000)
≈ 15.3 ng/µL
🔒 100% client-side — your data is computed in the browser and never uploaded.
Cite this tool
ToolJolt. Antisense Oligo Concentration from A₂₆₀ Calculator. ToolJolt Chemistry & Lab Tools; 2026. https://tooljolt.comAntisense Oligo Concentration from A₂₆₀ Calculator for molecular biologists, geneticists and bioinformaticians. Enter your values and read a sourced, step-by-step result instantly, right in your browser.
About Antisense Oligo Concentration from A₂₆₀ Calculator
Convert an A₂₆₀ absorbance reading into the concentration (ng/µL and molar) of a antisense oligo using its sequence-derived extinction coefficient. The calculation uses c = A₂₆₀ / ε (Beer–Lambert, l=1 cm). Why it matters: Primer design, GC content and melting temperature decide whether a PCR amplifies cleanly or produces nothing. Small sequence mistakes propagate into failed experiments and wasted reagents. Resuspend and quantify your antisense oligo accurately from its A₂₆₀. Before you trust the number, double-check: mismatched forward/reverse primer Tm; primers with runs of G/C causing mispriming; ignoring secondary structure in GC-rich templates. Everything is computed on your own device — nothing you enter is uploaded — so the tool is safe for unpublished sequences, proprietary formulations and sensitive measurements, and easy to cite in a methods section or lab SOP.
How to use Antisense Oligo Concentration from A₂₆₀ Calculator
- 1Enter your input values.
- 2Read the headline result and the supporting figures, which recompute as you type.
- 3Open “Worked example with your numbers” to see the substituted formula step by step.
- 4Copy the result, or use the cite-this-tool snippet for your methods section.
Why use Antisense Oligo Concentration from A₂₆₀ Calculator?
- ✓Instant, client-side result — works offline once loaded and keeps your data private
- ✓Shows the worked example step by step with your own numbers, not just a final figure
- ✓Pre-filled with sensible, niche-specific defaults so it is useful the second it loads
- ✓Mobile-friendly and completely free, with no sign-up or usage caps
- ✓Built on a sourced, unit-tested formula for nucleic-acid sequence analysis
Frequently asked questions
Any tips specific to this calculation?+
Resuspend and quantify your antisense oligo accurately from its A₂₆₀. Also watch out for: mismatched forward/reverse primer Tm and reading the wrong strand or frame.
Is this antisense oligo concentration from a₂₆₀ calculator free to use?+
Yes. It is completely free, needs no sign-up, and runs entirely in your browser — there are no usage limits.
What formula does it use?+
It uses c = A₂₆₀ / ε (Beer–Lambert, l=1 cm) The full worked example is shown beneath the result so you can verify each step.
What are the most common mistakes here?+
In nucleic-acid sequence analysis, watch for: mismatched forward/reverse primer Tm; primers with runs of G/C causing mispriming; ignoring secondary structure in GC-rich templates; reading the wrong strand or frame. This tool shows the working so you can catch these before they cost an experiment.
Does my data leave my device?+
No. All computation happens locally in your browser. Nothing you enter — sequences, concentrations or measurements — is uploaded to any server, so it is safe for confidential work.
Can I cite this tool?+
Yes — use the “Cite this tool” snippet on the page. Many users link these calculators from methods sections, lab SOPs and teaching materials.
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