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Key Documents

C2776

Sigma-Aldrich

Tétrafluoroborate de 1-cyano-4-diméthylaminopyridinium

organic cyanylating reagent

Synonyme(s) :

CDAP

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About This Item

Formule empirique (notation de Hill):
C8H10BF4N3
Numéro CAS:
Poids moléculaire :
234.99
Numéro Beilstein :
5685616
Numéro MDL:
Code UNSPSC :
12352108
ID de substance PubChem :
Nomenclature NACRES :
NA.32

Niveau de qualité

Forme

powder

Température de stockage

−20°C

Chaîne SMILES 

[F-].FB(F)F.CN(C)c1cc[n+](cc1)C#N

InChI

1S/C8H10N3.BF3.FH/c1-10(2)8-3-5-11(7-9)6-4-8;2-1(3)4;/h3-6H,1-2H3;;1H/q+1;;/p-1

Clé InChI

ONCRRSYBEJHQMM-UHFFFAOYSA-M

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Description générale

1-Cyano-4-dimethylaminopyridinium tetrafluoroborate is an organic cyanylating agent also termed CDAP. It is a unique cystine-labeling reagent due to its reactive nature under acidic conditions. This feature provides CDAP an advantage over other sulfhydryl labeling agents, as it can avoid potential thiol-disulfide exchange.

Application

1-Cyano-4-dimethylaminopyridinium (CDAP) has been used in the synthesis of conjugate vaccines as a cyanylating agent. Activation of cellulose dialysis membrane for immunosensor applications used CDAP as an activation agent.

Caractéristiques et avantages

When compared to Cyanogen Bromide (CNBr), a similar reagent, CDAP is:

  • Easier to use.
  • Can operate at lower pH levels.
  • Fewer side reactions.
  • Cyanogen Bromide is hazardous in nature.

Pictogrammes

Exclamation mark

Mention d'avertissement

Warning

Mentions de danger

Classification des risques

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Organes cibles

Respiratory system

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

dust mask type N95 (US), Eyeshields, Gloves


Certificats d'analyse (COA)

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Consulter la Bibliothèque de documents

A Holmberg et al.
Bioconjugate chemistry, 4(6), 570-573 (1993-11-01)
This study presents a carrier system for boron, potentially useful in boron neutron capture therapy (BNCT). Na2B12H11SH (BSH) was covalently coupled to dextran derivatives. This was accomplished in two ways. The first method comprises activation of dextran with 1-cyano-4-(dimethylamino)pyridine (CDAP)
A Andersson et al.
International journal of cancer, 47(3), 439-444 (1991-02-01)
Some gliomas, melanomas and squamous carcinomas have large numbers of EGF receptors which could, in these cases, be used for targeting with toxic agents. We investigated whether EGF could be conjugated to dextran, which is a suitable carrier for toxic
Raphael Simon et al.
PloS one, 8(5), e64680-e64680 (2013-06-07)
Non-typhoidal Salmonella (NTS) serovars S. Enteritidis and S. Typhimurium are a major cause of invasive bacterial disease (e.g., bacteremia, meningitis) in infants and young children in sub-Saharan Africa and also occasionally cause invasive disease in highly susceptible hosts (young infants
J Wu et al.
Protein science : a publication of the Protein Society, 7(4), 1017-1028 (1998-05-06)
Human epidermal growth factor (hEGF) contains 53 amino acids and three disulfide bonds. The unfolded, reduced hEGF is allowed to refold under mildly alkaline conditions. The folding is quenched at different time points by adjusting the pH to 3.0 with
J T Watson et al.
Journal of molecular graphics & modelling, 19(1), 119-128 (2001-05-31)
Trapping folding intermediates of cystinyl proteins by covalent modification of free sulfhydryl groups provides the opportunity for isolation, purification, and structural elucidation of individual species. The disulfide structure of the intermediates, coupled with their temporal abundance, provides a 'snapshot' of

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