Cap A
ALDRICH/L040080 - configured for PerkinElmer, configured for Polygen
Product Type: Chemical
This image is provided for informative purposes only and does not represent an actual product label. It should not be used as a substitute for official product labeling.
| color | clear |
| compatibility | configured for PerkinElmer |
| configured for Polygen | |
| concentration | 88.7-108.4 g/L (Acetic Anhydride content, titration) |
| form | liquid |
| product line | Proligo Reagents |
| storage condition | dry at room temperature |
| type | for DNA synthesis |
| Biochem/physiol Actions: | Cap A solution aborts chains bearing unreacted 5′ hydroxyl groups due to failure of reaction with activated phosphoramidite (typically, 1 to 2% of growing oligonucleotide chains in each synthesis cycle). These unreacted 5′ hydroxyl groups are capped with an acetyl group and thus rendered unreactive for subsequent synthesis steps. |
| General description: | Cap A solution contains acetic anhydride and tetrahydrofuran (THF). It is used after the phosphoramidite reaction/coupling step. |
| Packaging: | 4×2, 4 L in glass bottle |
| Packaging: | 6×200 mL in glass bottle |
| Preparation Note: | Acetic Anhydride / Tetrahydrofurane 9.1/90.9 (v/v) |
| Symbol |     GHS02,GHS05,GHS07,GHS08 |
| Signal word | Danger |
| Hazard statements | H225 - H302 + H332 - H315 - H318 - H335 - H336 - H351 |
| Precautionary statements | P210 - P280 - P301 + P312 - P304 + P340 + P312 - P305 + P351 + P338 - P308 + P313 |
| RIDADR | UN 2056 3 / PGII |
| WGK Germany | WGK 1 |
| Flash Point(F) | -6.2 °F - closed cup |
| Flash Point(C) | -21.2 °C - closed cup |
| Supplemental Hazard Statements | EUH019 - EUH071 |
| UNSPSC | 12352200 |