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CAS 493-52-7: Rojo de metilo

Descripción:
Rojo de metilo es un compuesto orgánico clasificado como un indicador de pH, comúnmente utilizado en titulaciones y diversas aplicaciones de laboratorio. Aparece como un polvo rojo a amarillo, dependiendo del pH de la solución en la que se encuentre; transita de rojo a un pH inferior a 4.4 a amarillo a un pH superior a 6.2. Rojo de metilo tiene una fórmula molecular de C15H15N3O2 y un peso molecular de aproximadamente 269.3 g/mol. Es soluble en alcohol y ligeramente soluble en agua, lo que lo hace útil en varios sistemas de disolventes. El compuesto exhibe un fuerte cambio de color, lo que es particularmente valioso para determinar el punto final de las titulaciones ácido-base. Rojo de metilo también es conocido por su estabilidad en condiciones normales de laboratorio, aunque puede degradarse cuando se expone a luz intensa o calor. Además, tiene aplicaciones en microbiología para diferenciar entre ciertas especies bacterianas según su actividad metabólica. Sin embargo, se deben tomar precauciones de seguridad, ya que puede ser perjudicial si se ingiere o inhala.
Fórmula:C15H15N3O2
InChI:InChI=1S/C15H15N3O2/c1-18(2)12-9-7-11(8-10-12)16-17-14-6-4-3-5-13(14)15(19)20/h3-10H,1-2H3,(H,19,20)
Clave InChI:InChIKey=CEQFOVLGLXCDCX-UHFFFAOYSA-N
SMILES:N(=NC1=CC=C(N(C)C)C=C1)C2=C(C(O)=O)C=CC=C2
Sinónimos:
  • 2-((4-Dimethylamino)Phenyl)Azo)-Benzoic Acid
  • 2-(4-Dimethylaminophenylazo)Benzoic Acid
  • 2-(4-Dimethylaminophenylazo)benzoesaeure
  • 2-(N,N-Dimethyl-4-aminophenyl)azobenzenecarboxylic acid
  • 2-Carboxy-4'-(dimethylamino)azobenzene
  • 2-[(p-Dimethylamino)phenyl]azobenzoic acid
  • 2-[2-[4-(Dimethylamino)phenyl]diazenyl]benzoic acid
  • 2-[[4-(Dimethylamino)phenyl]diazenyl]benzoic acid
  • 4'-(Dimethylamino)azobenzene-2-carboxylic acid
  • 4-(2-Carboxyphenylazo)-N,N-dimethylaniline
  • Acid Red 2
  • Ver más sinónimos
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Encontrado 18 productos.
  • Methyl Red, ACS reagent

    CAS:
    This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
    Fórmula:C15H15N3O2
    Forma y color:Dark red to brown to purple, Powder
    Peso molecular:269.30

    Ref: AC-42397

    10g
    Descatalogado
    25g
    Descatalogado
    100g
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    Producto descatalogado
  • Methyl Red, ACS

    CAS:
    pH indicator in pH range 4.2 - 6.3Methyl red is used as a pH indicator. It is red in pH less than 4.4 and yellow in pH over 6.2. It is used to study its degradation using Fenton's reagent. In microbiology, it is used to identify bacteria producing stable acids by mechanisms of mixed acid fermentation of glucose. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
    Fórmula:C15H15N3O2
    Peso molecular:269.30

    Ref: 02-036682

    25g
    40,00€
    100g
    84,00€
  • Methyl Red extrapure AR

    CAS:
    Fórmula:C15H15N3O2
    Forma y color:Dark red to maroon to violet or purple, Crystalline powder
    Peso molecular:269.31

    Ref: SR-49449

    1kg
    91,00€
    25g
    16,00€
    100g
    22,00€
  • Acid Red 2

    CAS:
    Fórmula:C15H15N3O2
    Forma y color:Neat
    Peso molecular:269.30

    Ref: 04-C10028690

    100mg
    131,00€
  • Methyl red

    CAS:
    Methyl red is a dye that has been used in molecular biology as a measure of the activity of DNA, RNA, and protein enzymes. The methyl red test is based on the ability of the dye to undergo a color change from red to yellow as a result of an increase in pH. Methyl red reacts with dinucleotide phosphate by intramolecular hydrogen transfer and can be used to detect the presence of antimicrobial agents, such as antibiotics, which inhibit this reaction. The optimum concentration for methyl red is at 1mg/L in human serum and wastewater treatment. A Langmuir adsorption isotherm was used to determine its surface methodology. The optical sensor for methyl red is based on its fluorescence properties. Methyl Red has been shown to have no significant effect on aerobic bacteria such as Aerobacter aerogenes (1).
    Fórmula:C15H15N3O2
    Pureza:Min. 95%
    Forma y color:Powder
    Peso molecular:269.3 g/mol

    Ref: 3D-FM01516

    1kg
    586,00€
    250g
    261,00€
    500g
    410,00€
  • Methyl Red free acid ACS

    CAS:
    Pureza:95.0%
    Forma y color:Solid
    Peso molecular:269.3039855957031

    Ref: 10-F493794

    1kg
    A consultar
    25g
    20,00€
    100g
    A consultar
    500g
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  • Methyl Red

    CAS:
    Fórmula:C15H15N3O2
    Peso molecular:269.30

    Ref: 4Z-D-164026

    5mg
    A consultar
    10mg
    A consultar
    25mg
    A consultar
    50mg
    A consultar
    100mg
    A consultar
  • Methyl Red (0.1% in ca. 95% Ethanol) [for Titration]

    CAS:
    Fórmula:C15H15N3O2
    Forma y color:Red clear liquid
    Peso molecular:269.30

    Ref: 3B-M0067

    100ml
    43,00€
    500ml
    90,00€
  • Methyl Red, pure, indicator

    CAS:
    This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
    Fórmula:C15H15N3O2
    Forma y color:Dark red to brown to purple to violet, Powder or crystals
    Peso molecular:269.30

    Ref: AC-26444

    25g
    Descatalogado
    100g
    Descatalogado
    500g
    Descatalogado
    Producto descatalogado
  • Methyl Red

    CAS:
    Bacterial strains isolated from dye-contaminated sludge decolorized a toxic azo dye, namely, methyl red (MR). Methyl red is used in the methyl red test (MR test), used to identify bacteria producing stable acids by mechanisms of mixed acid fermentation of glucose This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
    Fórmula:C15H15N3O2
    Forma y color:Powder or crystals, Dark red to brown to purple to violet
    Peso molecular:269.30

    Ref: 02-A16690

    25g
    29,00€
    100g
    56,00€
    500g
    172,00€
  • Acid Red 2

    CAS:
    Fórmula:C15H15N3O2

    Ref: TR-DRE-C10028690

    100mg
    130,00€
  • Methyl Red (0.04% in Water) [for pH Determination]

    CAS:
    Fórmula:C15H15N3O2
    Forma y color:Light yellow to Yellow to Orange clear liquid
    Peso molecular:269.30

    Ref: 3B-M0056

    500ml
    39,00€
  • Methyl Red ACS, ExiPlus, Multi-Compendial

    CAS:
    Fórmula:C15H15N3O2
    Forma y color:Dark red to maroon to violet or purple, Powder or crystalline compound
    Peso molecular:269.31

    Ref: SR-40431

    1kg
    101,00€
    25g
    30,00€
    100g
    26,00€
  • Methyl Red

    CAS:
    Fórmula:C15H15N3O2
    Pureza:>98.0%(HPLC)
    Forma y color:Orange to Brown to Dark purple powder to crystal
    Peso molecular:269.30

    Ref: 3B-M0421

    1g
    23,00€
    25g
    61,00€
  • Methyl Red

    CAS:
    Fórmula:C15H15N3O2
    Forma y color:Dark Purple To Black
    Peso molecular:269.30

    Ref: TR-M333065

    1g
    101,00€
    5g
    119,00€
    10g
    137,00€
  • Methyl Red

    CAS:
    Fórmula:C15H15N3O2
    Pureza:>92.0%(HPLC)
    Forma y color:Orange to Brown to Dark purple powder to crystal
    Peso molecular:269.30

    Ref: 3B-M0702

    25g
    29,00€
  • Methyl Red (C.I. 13020)

    CAS:
    Fórmula:C15H15N3O2
    Forma y color:Red to dark red or purple powder
    Peso molecular:269.30

    Ref: 7W-GT1411

    1kg
    225,00€
    25g
    22,00€
    100g
    48,00€
    250g
    79,00€
  • Methyl red

    CAS:
    Methyl red
    Peso molecular:269.30g/mol

    Ref: 54-OR95401

    25g
    32,00€
    100g
    36,00€
    10kg
    1.188,00€
    500g
    78,00€
    2.5kg
    321,00€