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Merck

100536

4-Aminobenzoesäure

99%, for peptide synthesis, ReagentPlus®

Synonym(e):

PABA, Vitamin H1, Vitamin Bx

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€ 32,30

250 G

€ 52,00

1 KG

€ 156,00

5 KG

€ 486,00

€ 32,30

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Über diesen Artikel

Lineare Formel:
H2NC6H4CO2H
CAS-Nummer:
150-13-0
Molekulargewicht:
137.14
NACRES:
NA.22
PubChem Substance ID:
22435039
eCl@ss:
32160406
UNSPSC Code:
12352106
EC Number:
205-753-0
MDL number:
MFCD00007894
Beilstein/REAXYS Number:
471605

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Produktname

4-Aminobenzoesäure, ReagentPlus®, 99%

InChI key

ALYNCZNDIQEVRV-UHFFFAOYSA-N

InChI

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

SMILES string

Nc1ccc(cc1)C(O)=O

product line

ReagentPlus®

assay

99%

form

solid

reaction suitability

reaction type: solution phase peptide synthesis

mp

187-189 °C (lit.)

solubility

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

density

1.374 g/mL at 25 °C (lit.)

application(s)

peptide synthesis

Quality Level

200

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Dieser Artikel
429767Y00001738.22312
4-Aminobenzoesäure ReagentPlus®, 99%

Sigma-Aldrich

100536

4-Aminobenzoesäure

4-Aminobenzoesäure purified by sublimation, ≥99%

Sigma-Aldrich

429767

4-Aminobenzoesäure

4-Aminobenzoesäure European Pharmacopoeia (EP) Reference Standard

Y0000173

4-Aminobenzoesäure

4-Aminobenzoic acid for synthesis

Sigma-Aldrich

8.22312

4-Aminobenzoic acid

form

solid

form

solid

form

-

form

solid

assay

99%

assay

≥99%

assay

-

assay

≥99.0% (acidimetric)

product line

ReagentPlus®

product line

-

product line

-

product line

-

solubility

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

solubility

-

solubility

-

solubility

-

Quality Level

200

Quality Level

100

Quality Level

-

Quality Level

200

mp

187-189 °C (lit.)

mp

187-189 °C (lit.)

mp

187-189 °C (lit.)

mp

186-189 °C

Application

4-Aminobenzoic acid may be used in the following studies:
  • Covalent modification of glassy carbon electrode.[1]
  • Synthesis of 1,4-(2-chlorobenzylidene)aminobenzoic acid (Schiff base).[2]
  • Spectrophotometric determination of the trace amounts of dopamine, methyldopa and levodopa.[3]
  • Synthesis of 1:1 proton-transfer compound with 5-sulfosalicylic acid.[4]

General description

4-Aminobenzoic acid (4-ABA) acts as an bacterial cofactor and participates in the synthesis of folic acid.[4] It is a versatile reagent for structure extension through linear hydrogen-bonding associations, involving both the carboxylic acid and amine functional groups.[4] Formation of 4-ABA monolayer film on glassy carbon electrode (GCE) by amino cation radical method has been described.[5] Molecular adducts of 4-ABA have been prepared and their characterization by infrared spectroscopy and X-ray diffration methods have been reported.[6]

Legal Information

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

hcodes

H412

Hazard Classifications

Aquatic Chronic 3

Lagerklasse

11 - Combustible Solids

wgk

WGK 2

flash_point_f

339.8 °F - closed cup

flash_point_c

171 °C - closed cup

ppe

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

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number
BCCN7424
WXBF6749V
WXBF5576V
WXBF1369V
WXBD9854V

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In der Dokumentenbibliothek finden Sie die Dokumentation zu den Produkten, die Sie kürzlich erworben haben.

Die Dokumentenbibliothek aufrufen

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)
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)
Spectrophotometric determination of catecholamines based on their oxidation reaction followed by coupling with 4-aminobenzoic acid.
Madrakian T, et al.
Journal of the Brazilian Chemical Society, 17(7), 1259-1265 (2006)
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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/418/501/product-dating-information-06-25-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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