CAS 2508-19-2

Ácido trinitrobenzenosulfónico

Descripción:

Ácido trinitrobenzenosulfónico (TNBS) es un compuesto químico caracterizado por su estructura compleja, que incluye un anillo bencénico sustituido con tres grupos nitro y un grupo ácido sulfónico. Típicamente es un sólido cristalino amarillo que es altamente soluble en agua y disolventes orgánicos polares. TNBS es conocido por sus fuertes propiedades electrofílicas, lo que lo convierte en un reactivo útil en la síntesis orgánica y la química analítica, particularmente en la determinación de aminoácidos y proteínas. La presencia de múltiples grupos nitro contribuye a su alta reactividad y potencial como agente nitrante. Además, TNBS se utiliza en diversas aplicaciones, incluyendo como agente de acoplamiento en la química de colorantes y como reactivo para la detección de aminas primarias. Sin embargo, es importante manejar este compuesto con cuidado debido a su naturaleza tóxica y potencialmente peligrosa, así como su impacto ambiental. Se deben seguir los protocolos de seguridad adecuados al trabajar con TNBS en entornos de laboratorio.

Fórmula: C₆H₃N₃O₉S

InChI: InChI=1S/C6H3N3O9S/c10-7(11)3-1-4(8(12)13)6(19(16,17)18)5(2-3)9(14)15/h1-2H,(H,16,17,18)

Clave InChI: InChIKey=NHJVRSWLHSJWIN-UHFFFAOYSA-N

SMILES: S(=O)(=O)(O)C1=C(N(=O)=O)C=C(N(=O)=O)C=C1N(=O)=O

Sinónimos:

• Picryl sulfonic acid
• 2,4,6-Trinitrobenzenesulfonic acid
• Benzenesulfonic acid, 2,4,6-trinitro-
• 2,4,6-Trinitrobenzene-1-sulfonic acid
• Trinitrobenzenesulfonic acid

Picrylsulfonic acid solution 5 % (w/v) in H2O

CAS: 2508-19-2

Fórmula: C6H3N3O9S

Peso molecular: 293.17

Ref: 23-P2297

Picrylsulfonic Acid (ca. 1% in N,N-Dimethylformamide) [for Detection of Primary Amines]

CAS: 2508-19-2

Fórmula: C₆H₃N₃O₉S

Forma y color: Light yellow to Yellow clear liquid

Peso molecular: 293.16

Ref: 3B-P1447

2,4,6-Trinitrobenzenesulfonic acid (1% in DMF)

CAS: 2508-19-2

Fórmula: C₉H₁₀N₄O₁₀S

Pureza: 95.0%

Forma y color: Clear Liquid

Peso molecular: 366.26

Ref: 10-F321949

2,4,6-Trinitrobenzenesulfonic acid - 5% Aqueous solution

CAS: 2508-19-2

2,4,6-Trinitrobenzenesulfonic acid (also known as TNBS, TNSBA or picrylsulfonic acid) is a strongly oxidising organic acid that has long been used as a reagent to determine the presence of free primary amine groups. TNBS reacts rapidly with primary amines to form highly coloured N-trinitrophenyl acid products which can then be analysed by colorimetry. The amine can be regenerated by treatment with hydrazine. This analytical technique can also be applied to thiols and hydrazides. As is common with nitrated aromatic compounds, there is a risk of explosion and TNBS is typically commercially available as a solution. We also supply the 1% solution in DMF.

Fórmula: C₆H₃N₃O₉S

Forma y color: Colorless Yellow Clear Liquid

Peso molecular: 293.17 g/mol

Ref: 3D-FT73268

2,4,6-Trinitrobenzenesulfonic acid, 1% DMF solution

CAS: 2508-19-2

2,4,6-Trinitrobenzenesulfonic acid, also known as TNBS, TNSBA or picrylsulfonic acid, is a strongly oxidising organic acid that has long been used as a reagent to determine the presence of free primary amine groups. TNBS reacts rapidly with primary amines to form highly coloured N-trinitrophenyl products which can then be analysed by colorimetry. Competing hydrolysis of the TNBS reagent may influence the assay result. The amine can be regenerated by treatment with hydrazine. This analytical technique can also be applied to thiols and hydrazides.
As is common with nitrated aromatic compounds, there is a risk of explosion and TNBS is typically commercially available as a solution. We also supply the 5% aqueous solution.

Fórmula: C₆H₃N₃O₉S

Pureza: Min. 95%

Forma y color: Clear Liquid

Peso molecular: 293.17 g/mol

Ref: 3D-FT158294