807664

CBTF

• Sinônimo(s): APN-TFS ester, Sodium 4-((4-(cyanoethynyl)benzoyl)oxy)-2,3,5,6-tetrafluorobenzenesulfonate
• Fórmula empírica (Notação de Hill): C₁₆H₄F₄NNaO₅S
• Peso molecular: 421.26
• Código UNSPSC: 12352200
• ID de substância PubChem: 329768745
• NACRES: NA.22

Propriedades

• forma: powder
• Nível de qualidade: 100
• adequação da reação: reagent type: cross-linking reagent
• grupo funcional: ester
• temperatura de armazenamento: −20°C
• cadeia de caracteres SMILES: O=C(OC1=C(F)C(F)=C(S(=O)(O[Na])=O)C(F)=C1F)C2=CC=C(C#CC#N)C=C2
• InChI: 1S/C16H5F4NO5S.Na/c17-10-12(19)15(27(23,24)25)13(20)11(18)14(10)26-16(22)9-5-3-8(4-6-9)2-1-7-21;/h3-6H,(H,23,24,25);/q;+1/p-1
• chave InChI: YFJYSJRZDOWXDH-UHFFFAOYSA-M

Descrição

Descrição geral

CBTF (Sodium 4-((4-(cyanoethynyl)benzoyl)oxy)-2,3,5,6-tetrafluorobenzenesulfonate) is a heterobifunctional reagent. It bears a 3-arylpropionitrile (APN) group. CBTF can be prepared from 4-iodobenzoic acid. It participates in various amine-to-thiol coupling reactions. It participates in the synthesis of various antibody-dye conjugates. CBTF is widely used for antibody conjugation.

Aplicação

CBTF is a bifunctional crosslinker for amine-to-thiol coupling. The coupling can be performed with high selectivity in biological medium using mild reaction conditions. CBTF readily reacts with organic amines in basic conditions to produce APN-probes suitable for cysteine labeling.

Outras notas

Standard protein labeling procedure (lysine labeling):

• Dissolve the protein in an appropriate buffer* with pH 7.5-9.0 (e.g. PBS) at 1-10mg/mL concentration.
• Apply the appropriate amount of the stock solution of the reagent (1-5 molar eq. per lysine residue).
• Incubate at room temperature for 2 hours.
• If necessary, purify the protein-APN conjugate using size exclusion chromatography or ultrafiltration.
• The conjugate can be readily coupled with thiol-containing substrates by incubating the components in aqueous buffer (pH 6.5-9.0) at ambient temperature for 2 hours.

Standard protein labeling procedure (cysteine labeling):

Dissolve the protein in the appropriate buffer* with pH 6.5-9.0 (e.g. PBS) at 1-10mg/mL concentration.
Apply the appropriate amount of the stock solution of the APN-labeled molecule (1-5 molar eq. per free cysteine residue).
Incubate at room temperature for 2 hours.
If necessary, purify the protein conjugate using size exclusion chromatography or ultrafiltration.

*Note: avoid amine- and thiol-containing buffers.

Informações de segurança

• Pictogramas: GHS06
• Palavra indicadora: Danger
• Frases de perigo: H301
• Declarações de precaução: P301 + P310 + P330
• Classificações de perigo: Acute Tox. 3 Oral
• Código de classe de armazenamento: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• Classe de risco de água (WGK): WGK 3
• Ponto de fulgor (°F): Not applicable
• Ponto de fulgor (°C): Not applicable