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P53357

Sigma-Aldrich

Propyl 4-hydroxybenzoate

Propyl 4-hydroxybenzoate
1 of 1 reviewers received a sample product or took part in a promotion

≥99%

Synonym(s):

4-Hydroxybenzoic acid propyl ester, Propyl paraben

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5 G
€34.00
250 G
€71.30
500 G
€103.00

About This Item

Linear Formula:
HOC6H4CO2CH2CH2CH3
CAS Number:
Molecular Weight:
180.20
Beilstein:
1103245
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.21

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Quality Level

Assay

≥99%

form

solid

mp

95-98 °C (lit.)

functional group

ester

SMILES string

CCCOC(=O)c1ccc(O)cc1

InChI

1S/C10H12O3/c1-2-7-13-10(12)8-3-5-9(11)6-4-8/h3-6,11H,2,7H2,1H3

InChI key

QELSKZZBTMNZEB-UHFFFAOYSA-N

Gene Information

rat ... Ar(24208)

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General description

Propyl 4-hydroxybenzoate (PHB), is a p-hydroxybenzoate derivative. It can be prepared by reacting p-hydroxybenzoic acid with n-propanol in the presence of an acidic ionic liquid.It crystallizes in the monoclinic space group P21/c.It is reported to be an endocrine disrupting compound.

Application


  • Photostabilization of papaverine hydrochloride solutions.: This study investigates the use of Propyl 4-hydroxybenzoate to enhance the photostability of papaverine hydrochloride solutions. The research highlights the efficacy of Propyl 4-hydroxybenzoate as a preservative, providing insights into its potential applications in pharmaceuticals where light-induced degradation of compounds is a concern. The findings are significant for improving the shelf life and stability of medicinal solutions (Piotrowska K et al., 2010).


Hazard Statements

Precautionary Statements

Hazard Classifications

Aquatic Chronic 3

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

356.0 °F

Flash Point(C)

180 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Propyl 4-hydroxybenzoate.
Zhou Y, et al.
Acta Crystallographica Section E, Structure Reports Online, 66(2), o485-o485 (2010)
Extraction of endocrine disrupting compound propylparaben from water by emulsion liquid membrane using trioctylphosphine oxide as carrier.
Chaouchi S and Hamdaoui O
Journal of Industrial and Engineering Chemistry (Amsterdam, Netherlands), 22, 296-305 (2015)
Simultaneous Determination of p-Hydroxybenzoate Preservatives in Pharmaceuticals and Personal Care Formulations.
Bajaj A and John C.
Asian Journal of Research in Chemistry, 8(6), 394-398 (2015)
Synthesis of Propylparaben Catalyzed by Acidic Ionic Liquid.
Yanxian H and Jinlan S.
Guangdong Chemical Industry, 3, 007-007 (2013)
Dennis G Maki et al.
Critical care medicine, 39(4), 613-620 (2011-01-05)
Catheter-related bloodstream infection is the greatest threat to the safety of patients on hemodialysis. Catheter lock solutions containing heparin have been linked to an increased risk of hemorrhage and thrombocytopenia. To ascertain the safety and efficacy for prevention of catheter-related

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  1. 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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  2. 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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