SBR00023
1-Cyano-4-dimethylaminopyridinium tetrafluoroborate Ready Made Solution
organic cyanylating reagent, 100 mg/mL in acetonitrile
Sinonimo/i:
4-(dimethylamino)pyridin-1-ium-1-carbonitrile tetrafluoroborate, CDAP
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About This Item
Formula empirica (notazione di Hill):
C8H10BF4N3
Numero CAS:
Peso molecolare:
234.99
Codice UNSPSC:
12161902
NACRES:
NA.28
Prodotti consigliati
Origine biologica
synthetic
Saggio
≥97%
Forma fisica
liquid
PM
234.99
Concentrazione
100 mg/mL in acetonitrile
Condizioni di spedizione
dry ice
Temperatura di conservazione
−20°C
InChI
1S/C8H10N3.BF4/c1-10(2)8-3-5-11(7-9)6-4-8;2-1(3,4)5/h3-6H,1-2H3;/q+1;-1
MBLVMDCQDCVKNE-UHFFFAOYSA-N
Categorie correlate
Descrizione generale
1-Cyano-4-dimethylaminopyridinium tetrafluoroborate (CDAP) is crucial in vaccine and biochemical research. It rapidly activates polysaccharides, like TI-2 antigens, in a short time. Further, CDAP enables protein conjugation, vital for creating conjugate vaccines that enhance immune responses. CDAP works effectively at both pH 9-10 and mild alkaline conditions (pH 7-9), making it versatile for various antigens. CDAP′s efficacy in inducing high antibody levels makes it invaluable for developing effective vaccines and immunological reagents.
Applicazioni
1-Cyano-4-dimethylamino pyridinium tetrafluoroborate can be used in vaccine research for the conjugation of polysaccharides with proteins
Azioni biochim/fisiol
CDAP is a cyanylation reagent for protein sulfhydryl groups which is used to prepare protein-polysaccharide conjugates. CDAP is also an activating agent for polysaccharide resins and is used for the conjugation of lipopolysaccharides while retaining their endotoxic activity.
CDAP is considered to be a less toxic reagent as compared to cyanogen bromide (CNBr) (a known polysaccharides activator). In addition, CDAP is easier to use as it can be employed at a lower pH and has fewer side reactions. It is known that CDAP polysaccharide activation efficiency is optimal at pH 9-10. It was also reported that direct conjugation of protein to CDAP-activated polysaccharides can be performed under mildly alkaline conditions (pH 7-9). It has also been reported that proteins could also be conjugated to CDAP-activated polysaccharides at pH 5.
CDAP is considered to be a less toxic reagent as compared to cyanogen bromide (CNBr) (a known polysaccharides activator). In addition, CDAP is easier to use as it can be employed at a lower pH and has fewer side reactions. It is known that CDAP polysaccharide activation efficiency is optimal at pH 9-10. It was also reported that direct conjugation of protein to CDAP-activated polysaccharides can be performed under mildly alkaline conditions (pH 7-9). It has also been reported that proteins could also be conjugated to CDAP-activated polysaccharides at pH 5.
Caratteristiche e vantaggi
- Readily available solution, that reduces the need for preparation time
- Versatile and adaptable for vaccine and biochemical research
Nota sulla preparazione
Polysaccharide conjugation: CDAP Ready Made Solution (100mg/mL in acetonitrile) should be added in a ratio of 1mg CDAP to 1mg polysaccharide while vortexing (Example: per 1mg polysaccharide add 10μL of CDAP Ready Made Solution). Add 0.2M triethylamine, 10μL per 1mg polysaccharide to raise the pH of the reaction.
Altre note
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Avvertenze
Danger
Indicazioni di pericolo
Classi di pericolo
Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2
Codice della classe di stoccaggio
3 - Flammable liquids
Classe di pericolosità dell'acqua (WGK)
WGK 3
Punto d’infiammabilità (°F)
35.6 °F
Punto d’infiammabilità (°C)
2 °C
Certificati d'analisi (COA)
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Preparation of bacterial polysaccharide-protein conjugates: analytical and manufacturing challenges.
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Vaccine, 27(46), 6468-6470 (2009-06-27)
A conjugate can be a polysaccharide (PS) covalently attached to a protein, which provides T cell epitopes for a normally T cell independent antigen. To produce a conjugate vaccine, the purified PS must first be chemically modified to generate reactive
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D E Shafer et al.
Vaccine, 18(13), 1273-1281 (2000-01-29)
Covalently linking protein to polysaccharides converts the anti-polysaccharide immune response from a T-cell independent response to one which is T-cell dependent. The organic cyanylating reagent 1-cyano-4-dimethylaminopyridinium tetrafluoroborate (CDAP) (Vaccine 14:190, 1996) has been used to activate polysaccharides, which can then
Andrew Lees et al.
Vaccines, 8(4) (2020-12-24)
CDAP (1-cyano-4-dimethylaminopyridine tetrafluoroborate) is employed in the synthesis of conjugate vaccines as a cyanylating reagent. In the published method, which used pH 9 activation at 20 °C (Vaccine, 14:190, 1996), the rapid reaction made the process difficult to control. Here
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