L050084
Cap B
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About This Item
NACRES:
NA.51
UNSPSC Code:
12352200
product line
Proligo Reagents
Quality Segment
General description
Cap B solution contains tetrahydrofuran (THF), pyridine, and N-methylimidazole (NMI). It is mixed in situ with Cap A solution during the capping (acetylation) reaction. Pyridine is applied as a mild base while NMI provides a powerful acylation catalyst.
Preparation Note
Tetrahydrofurane / N-Methylimidazole / Pyridine 8/1/1 (v/v/v)
Other Notes
Cap B solution, containing tetrahydrofuran (THF), pyridine and N-methylimidazole (NMI), is mixed in situ with Cap A solution during the capping (acetylation) reaction. Pyridine is applied as a mild base while NMI provides a powerful acylation catalyst.
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Signal Word
Danger
Hazard Codes
Precautionary Statements
Hazard Classifications
Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Carc. 2 - Eye Dam. 1 - Flam. Liq. 2 - Repr. 2 - Skin Corr. 1B - STOT SE 3
Target Organs
Central nervous system, Respiratory system
supp_hazards
Storage Class
3 - Flammable liquids
Flash Point (°F)
6.1 °F
Flash Point (°C)
-14.4 °C
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