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240141

Sigma-Aldrich

4-Hydroxybenzoic acid

ReagentPlus®, ≥99%

Synonym(s):

4-Carboxyphenol, 4-Hydroxybenzoic acid, Paraben-acid, p-Carboxyphenol, p-Hydroxybenzoic acid, p-Hydroxyl benzoic acid, p-Salicylic acid

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50 G
$37.70

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50 G
$37.70

About This Item

Linear Formula:
HOC6H4CO2H
CAS Number:
Molecular Weight:
138.12
Beilstein/REAXYS Number:
970950
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

$37.70


In StockDetails


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Quality Level

product line

ReagentPlus®

assay

≥99%

form

powder

mp

213-217 °C (lit.)

solubility

water: soluble 125 part(lit.)
acetone: soluble(lit.)
alcohol: freely soluble(lit.)
carbon disulfide: insoluble(lit.)
chloroform: slightly soluble(lit.)
diethyl ether: soluble(lit.)

functional group

carboxylic acid

SMILES string

OC(=O)c1ccc(O)cc1

InChI

1S/C7H6O3/c8-6-3-1-5(2-4-6)7(9)10/h1-4,8H,(H,9,10)

Inchi Key

FJKROLUGYXJWQN-UHFFFAOYSA-N

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General description

4-Hydroxybenzoic acid is an aromatic carboxylic acid commonly used as a building block in various organic reactions, such as in the synthesis of liquid crystals and parabens. It is also utilized in esterification reactions for synthesizing aromatic oligomers. [1] [2]

Application

4-Hydroxybenzoic acid can be used as a reactant to synthesize:
  • Monoesters via esterification with sucrose.
  • Thermotropic liquid crystalline polymers[3].
  • 4-Hydroxybenzaldoxime via one-pot chemoenzymatic method[4].

Legal Information

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

Pictograms

CorrosionExclamation mark

signalword

Danger

hcodes

Hazard Classifications

Eye Dam. 1 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


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Meng Wang et al.
ACS catalysis, 4(4), 1219-1225 (2014-05-08)
The adenylation (A) domain acts as the first "gate-keeper" to ensure the activation and thioesterification of the correct monomer to nonribosomal peptide synthetases (NRPSs). Our understanding of the specificity-conferring code and our ability to engineer A domains are critical for
Thermotropic liquid crystalline polymers as protective coatings for aerospace
Guerriero G, et al.
Progress in Organic Coatings, 70, 245-251 (2011)
L C Goudas et al.
Anesthesia and analgesia, 89(5), 1209-1215 (1999-11-30)
Intracerebroventricular (ICV) morphine administration is effective for the management of refractory cancer pain. Recent preclinical observations of acute depletion of the major endogenous intracellular antioxidant glutathione (GSH) in brain and peripheral organs after ICV morphine in rodents led us to
Letian X Xie et al.
The Journal of biological chemistry, 287(28), 23571-23581 (2012-05-18)
Most of the Coq proteins involved in coenzyme Q (ubiquinone or Q) biosynthesis are interdependent within a multiprotein complex in the yeast Saccharomyces cerevisiae. Lack of only one Coq polypeptide, as in Δcoq strains, results in the degradation of several
Suri Roowi et al.
Molecular nutrition & food research, 53 Suppl 1, S68-S75 (2009-05-06)
Human urine was collected over a 24 h period after the consumption of 250 mL of (i) water, (ii) orange juice, and (iii) orange juice plus 150 mL of full fat natural yoghurt. The orange juice contained 168 micromol of

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  1. I see that Product 240141, 4-Hydroxybenzoic acid, is deleted. Which product do you offer in its place?

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    1. Our best offer item is Product No. H20059.

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  2. How can Product 240141, 4-Hydroxybenzoic acid, be dissolved?

    1 answer
    1. According to the chemicals encyclopedia published by the Royal Society of Chemistry, 4-Hydroxybenzoic acid is freely soluble in alcohol, and soluble in about 125 parts water.

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  3. What is the Department of Transportation shipping information for this product?

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    1. Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

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  4. What is the shelf life of Product 240141, 4-Hydroxybenzoic acid?

    1 answer
    1. This information can be found on the product specification sheet for a related product (H20059).

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