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4-Hydroxybenzoic acid

ReagentPlus®, ≥99%

Fórmula linear:
Número CAS:
Peso molecular:
Número EC:
Número MDL:
ID de substância PubChem:

Nível de qualidade


linha de produto







213-217 °C (lit.)


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

SMILES string




InChI key


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4-Hydroxybenzoic acid was used in the synthesis of 4-hydroxybenzaldoxime, via one-pot chemoenzymatic method.


50 g in poly bottle

Informações legais

ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC


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Palavra indicadora


Frases de perigo

Declarações de precaução

Classificações de perigo

Eye Dam. 1 - STOT SE 3


Respiratory system

Código de classe de armazenamento

11 - Combustible Solids



Ponto de fulgor (ºF)

Not applicable

Ponto de fulgor (ºC)

Not applicable

Equipamento de proteção individual

dust mask type N95 (US), Eyeshields, Gloves

Certificado de análise

Certificado de origem

  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

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

    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.

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

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

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

    Our best offer item is Product No. H20059.

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

    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. 

  8. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

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
L I Wiebe et al.
Drug metabolism and disposition: the biological fate of chemicals, 6(3), 296-302 (1978-05-01)
Butylated hydroxytoluene (BHT) containing the stable isotope 13C was synthesized from 2-[13C]methylpropan-2-ol. A minor constituent of urine following ingestion of BHT-13C by a human volunteer was identified as 3,5-di-(1-[13C]methyl-1-methylethyl)-4-hydroxybenzoic acid, The major metabolite detected was 13C-labeled 5-carboxy-7-(1-carboxy-1-methylethyl)-3,3-dimethyl-2-hydroxy-2,3-dihydrobenzofuran. Detailed spectral analysis
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
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
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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