- Capping Reagent B 1 (Acetic Anhydride in Acetonitrile, 4:6) is a high-concentration acetonitrile-based capping reagent designed for large-scale and high-throughput automated oligonucleotide synthesis requiring faster or more complete capping.
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High-concentration Cap B formulation for large-scale or high-throughput oligonucleotide synthesis
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Used when faster or more complete capping is required at high synthesis scale
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Compatible with manufacturing-scale synthesizer platforms requiring concentrated capping reagents
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Reduces reagent volume consumption in high-throughput synthesis workflows
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Chemical Manufacturing
Product Information
| CAS | 108-24-7 (Ac₂O) / 75-05-8 (MeCN) |
|---|---|
| Assay | 40% v/v Acetic Anhydride in 60% v/v Acetonitrile |
| Grade | Bioreagent Grade |
| Appearance | Clear, colorless solution |
| Solubility | Fully miscible with acetonitrile; moisture-sensitive |
| Autoship Available | Yes |
| Pillar | Essential |
| Water | NMT 100 ppm H₂O |













