Preparation Note
乙酸酐/四氢呋喃 9.1/90.9 (v/v)
Other Notes
Cap A solution, containing acetic anhydride and tetrahydrofuran (THF), is used after the phosphoramidite reaction/coupling step. This 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.
signalword
Danger
Hazard Classifications
Acute Tox. 3 Inhalation - Acute Tox. 4 Oral - Carc. 2 - Eye Dam. 1 - Flam. Liq. 2 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
supp_hazards
存储类别
3 - Flammable liquids
wgk
WGK 1
flash_point_f
6.1 °F
flash_point_c
-14.4 °C
法规信息
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