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100536

Sigma-Aldrich

4-Aminobenzoic acid

99%, for peptide synthesis, ReagentPlus®

Sinónimos:

PABA, Vitamin Bx, Vitamin H1

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50 G
$33.60
250 G
$54.30
1 KG
$163.00
5 KG
$538.00

$33.60

Disponible para envío el23 de abril de 2025Detalles

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50 G
$33.60
250 G
$54.30
1 KG
$163.00
5 KG
$538.00

About This Item

Fórmula lineal:
H2NC6H4CO2H
Número de CAS:
150-13-0
Peso molecular:
137.14
Beilstein:
471605
Número CE:
205-753-0
Número MDL:
MFCD00007894
Código UNSPSC:
12352106
eCl@ss:
32160406
ID de la sustancia en PubChem:
22435039
NACRES:
NA.22

$33.60

Disponible para envío el23 de abril de 2025Detalles

Solicitar un pedido a granel

Nombre del producto

4-Aminobenzoic acid, ReagentPlus®, 99%

Nivel de calidad

200

Línea del producto

ReagentPlus®

Ensayo

99%

Formulario

solid

idoneidad de la reacción

reaction type: solution phase peptide synthesis

mp

187-189 °C (lit.)

solubilidad

95% ethanol: soluble 5%, clear to slightly hazy, colorless to yellow

densidad

1.374 g/mL at 25 °C (lit.)

aplicaciones

peptide synthesis

cadena SMILES

Nc1ccc(cc1)C(O)=O

InChI

1S/C7H7NO2/c8-6-3-1-5(2-4-6)7(9)10/h1-4H,8H2,(H,9,10)

Clave InChI

ALYNCZNDIQEVRV-UHFFFAOYSA-N

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Descripción general

4-Aminobenzoic acid (4-ABA) acts as an bacterial cofactor and participates in the synthesis of folic acid.[1] It is a versatile reagent for structure extension through linear hydrogen-bonding associations, involving both the carboxylic acid and amine functional groups.[1] Formation of 4-ABA monolayer film on glassy carbon electrode (GCE) by amino cation radical method has been described.[2] Molecular adducts of 4-ABA have been prepared and their characterization by infrared spectroscopy and X-ray diffration methods have been reported.[3]

Aplicación

4-Aminobenzoic acid may be used in the following studies:
  • Covalent modification of glassy carbon electrode.[4]
  • Synthesis of 1,4-(2-chlorobenzylidene)aminobenzoic acid (Schiff base).[5]
  • Spectrophotometric determination of the trace amounts of dopamine, methyldopa and levodopa.[6]
  • Synthesis of 1:1 proton-transfer compound with 5-sulfosalicylic acid.[1]

Información legal

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

Frases de peligro

H412

Consejos de prudencia

P273 - P501

Clasificaciones de peligro

Aquatic Chronic 3

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 2

Punto de inflamabilidad (°F)

339.8 °F - closed cup

Punto de inflamabilidad (°C)

171 °C - closed cup

Equipo de protección personal

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

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Certificados de análisis (COA)

Lot/Batch Number
WXBF5576V
WXBF1369V
WXBD9854V
WXBD9855V
WXBD8677V

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The 1: 1 proton-transfer compound of 5-sulfosalicylic acid with 4-aminobenzoic acid.
Smith G, et al.
Acta Crystallographica Section E, Structure Reports Online, 61(2), 313-316 (2005)
Covalent modification of a glassy carbon surface by 4-aminobenzoic acid and its application in fabrication of a polyoxometalates-consisting monolayer and multilayer films.
Liu J, et al.
Langmuir, 16(19), 7471-7476 (2000)
The utility of 4-aminobenzoic acid in promotion of hydrogen bonding in crystallization processes.
Smith G, et al.
Journal of Chemical Crystallography, 27(5), 307-317 (1997)
Gehad G Mohamed et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 62(4-5), 1140-1150 (2005-06-16)
Metal complexes of Schiff base derived from 2-thiophene carboxaldehyde and 2-aminobenzoic acid (HL) are reported and characterized based on elemental analyses, IR, 1H NMR, solid reflectance, magnetic moment, molar conductance and thermal analysis (TGA). The ligand dissociation as well as
Layer-by-layer assembly of multilayer films consisting of silicotungstate and a cationic redox polymer on 4-aminobenzoic acid modified glassy carbon electrode and their electrocatalytic effects.
Cheng L, et al.
Analytica Chimica Acta, 34(12), 1093-1100 (1999)
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Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  3. Hallo, wie lange ist die Haltbarkeit des Produkts? auf dem Gebinde und dem Zertifikat gibt es dazu keine Angaben.

    1 answer

    1. This product is not assigned an expiration date or recommended retest date. Customers should routinely inspect products with no expiration date or recommended retest date to ensure they perform as expected. These products are also subject to a one-year warranty from the date of shipment.

      For more information, you may access the "Product Dating Information" document under "ADDITIONAL USEFUL DOCUMENTS ABOUT OUR PRODUCTS" at the bottom of the Quality Services page with this link: https://www.sigmaaldrich.com/life-science/quality-and-regulatory-management/quality-services.

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