Skip to Content
Merck
All Photos(1)

Documents

L050150

Sigma-Aldrich

Cap B2

configured for (ÄKTA® and OligoPilot®)

Synonym(s):

Cap B

Sign Into View Organizational & Contract Pricing


About This Item

UNSPSC Code:
12352200
NACRES:
NA.21

type

for DNA synthesis

Quality Level

product line

Proligo Reagents

storage condition

dry at room temperature

impurities

≤200 ppm water content (Karl Fischer)

color

clear

suitability

conforms to structure (GC, Formulation)

compatibility

configured for (ÄKTA® and OligoPilot®)

Looking for similar products? Visit Product Comparison Guide

General description

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 Pyridine is applied as a mild base while NMI provides a powerful acylation catalyst.Tetrahydrofurane has been replaced by acetonitrile in ÄKTA Cap B1 and B2.Cap B is configured for ÄKTA formulation.

Preparation Note

Acetonitrile / Pyridine 4/6 (v/v)

Other Notes

Cap B2 solution, containing acetonitrile (ACN) and pyridine, is mixed in situ with Cap A and Cap B1 solution during the capping (acetylation) reaction.
Pyridine is applied as a mild base while NMI provides a powerful acylation catalyst.

Legal Information

OligoPilot is a registered trademark of Cytiva
ÄKTA is a registered trademark of Cytiva

Pictograms

FlameExclamation mark

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

62.6 °F

Flash Point(C)

17 °C


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service