- Activator Solution (0.25M ETT in Acetonitrile) is a ready-to-use 5-Ethylthio-1H-tetrazole phosphoramidite activator solution for automated solid-phase oligonucleotide synthesis, widely used in both research and therapeutic manufacturing.
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Phosphoramidite activator in automated DNA/RNA synthesis
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Activator for oligonucleotide manufacturing
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Reagent for synthesis of phosphorothioate and modified backbone oligonucleotides
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Used in solid-phase synthesis of therapeutic antisense and siRNA oligonucleotides
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Chemical Manufacturing
Product Information
| CAS | 4830-99-3 (ETT) / 75-05-8 (ACN) |
|---|---|
| Assay | 0.25 M ETT (5-Ethylthio-1H-tetrazole) in acetonitrile |
| Grade | Bioreagent Grade |
| Appearance | Clear, colorless to pale yellow solution |
| Solubility | Fully miscible with acetonitrile and DMF; avoid water |
| Molecular formula | 0.25 M 5-Ethylthio-1H-tetrazole in CH₃CN |
| Autoship Available | Yes |
| Category Filter | High Purity Chemicals |
| Pillar | High Purity |
| Water | NMT 30 ppm H₂O |













