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133337

Sigma-Aldrich

4-Acetamidobenzoic acid

98%

Synonym(s):

N-Acetyl-PABA

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About This Item

Linear Formula:
CH3CONHC6H4CO2H
CAS Number:
556-08-1
Molecular Weight:
179.17
Beilstein:
390602
EC Number:
209-114-7
MDL number:
MFCD00002534
UNSPSC Code:
12352106
eCl@ss:
32160406
PubChem Substance ID:
24848102
NACRES:
NA.22
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Assay

98%

form

powder

reaction suitability

reaction type: solution phase peptide synthesis

mp

259-262 °C (dec.) (lit.)

application(s)

peptide synthesis

SMILES string

CC(=O)Nc1ccc(cc1)C(O)=O

InChI

1S/C9H9NO3/c1-6(11)10-8-4-2-7(3-5-8)9(12)13/h2-5H,1H3,(H,10,11)(H,12,13)

InChI key

QCXJEYYXVJIFCE-UHFFFAOYSA-N

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Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCM4362
BCCL2106
BCCH3087
BCCF2949
BCBZ5211

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João Neres et al.
Bioorganic & medicinal chemistry, 15(5), 2106-2119 (2007-01-16)
Benzoic acid and pyridine derivatives inhibit recombinant trans-sialidase from Trypanosoma cruzi with I50 values between 0.4 and 1mM. The best compounds, 4-acetylamino-3-hydroxymethylbenzoic acid and 5-acetylamino-6-aminopyridine-2-carboxylic acid, provide new leads to inhibitors not containing the synthetically complex sialic acid structure. The
Yasuhiro Uno et al.
Biochemical pharmacology, 177, 113996-113996 (2020-04-28)
In humans, polymorphic N-acetyltransferases NAT1 and NAT2 are important enzymes that metabolize endogenous and exogenous compounds, including drugs. These enzymes exhibit considerable inter-individual variability in humans. The cynomolgus macaque is a nonhuman primate species that is widely used in drug
Lai-Hao Wang et al.
Journal of pharmaceutical and biomedical analysis, 43(4), 1430-1436 (2006-11-23)
p-Aminobenzoic acid (PABA) and its metabolites (p-aminohippuric acid, p-acetamidobenzoic acid, and p-acetamidohippuric acid) were detected using high-performance liquid chromatography with an electrochemical (carbon paste) detector (HPLC-ECD). For direct current (dc) mode, with the current at a constant potential, and measurements
J A Kovacs et al.
Antimicrobial agents and chemotherapy, 37(6), 1227-1231 (1993-06-01)
Isoprinosine has been reported to decrease progression to AIDS, primarily by preventing Pneumocystis carinii pneumonia (PCP), in human immunodeficiency virus-infected patients, but the mechanism of action is unknown. para-Acetamidobenzoic acid (PAcBA), one component of isoprinosine, is structurally related to para-aminobenzoic
M Yasuhara et al.
Biochemical pharmacology, 33(20), 3131-3136 (1984-10-15)
The metabolic and excretory function of the small intestine was investigated after oral and intravenous administration of drugs having an aromatic amino group to rats. After administration of drugs into the intestinal loop at the initial concentration of 0.1 mM
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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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