PHR1011
Ethylparaben
Pharmaceutical Secondary Standard; Certified Reference Material
Synonym(s):
Ethyl 4-hydroxybenzoate, EP, Ethylparaben
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About This Item
Linear Formula:
HOC6H4CO2C2H5
CAS Number:
Molecular Weight:
166.17
Beilstein:
1101972
EC Number:
MDL number:
UNSPSC Code:
41116107
eCl@ss:
39024522
PubChem Substance ID:
E Number:
E214
NACRES:
NA.24
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grade
certified reference material
pharmaceutical secondary standard
Quality Level
Agency
traceable to Ph. Eur. E2425000
traceable to USP 1267000
API family
parabens
CofA
current certificate can be downloaded
technique(s)
HPLC: suitable
gas chromatography (GC): suitable
bp
297-298 °C (lit.)
mp
114-117 °C (lit.)
application(s)
cleaning products
cosmetics
flavors and fragrances
food and beverages
personal care
pharmaceutical (small molecule)
format
neat
storage temp.
2-8°C
SMILES string
CCOC(=O)c1ccc(O)cc1
InChI
1S/C9H10O3/c1-2-12-9(11)7-3-5-8(10)6-4-7/h3-6,10H,2H2,1H3
InChI key
NUVBSKCKDOMJSU-UHFFFAOYSA-N
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General description
Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards.
Application
Ethylparaben may be used as a pharmaceutical reference standard for the determination of the analyte in pharmaceutical formulations by high performance liquid chromatography (HPLC).
These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements.
Analysis Note
These secondary standards offer multi-traceability to the USP, EP (PhEur) and BP primary standards, where they are available.
Other Notes
This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.
Footnote
To see an example of a Certificate of Analysis for this material enter LRAC3158 in the slot below. This is an example certificate only and may not be the lot that you receive.
Recommended products
Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.
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Product No.
Description
Pricing
Storage Class Code
11 - Combustible Solids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
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Determination of combined p-hydroxy benzoic acid preservatives in a liquid pharmaceutical formulation by HPLC
Shabir GA.
Journal of Pharmaceutical and Biomedical Analysis, 34(1), 207-213 (2004)
Sawsan El Hussein et al.
Experimental dermatology, 16(10), 830-836 (2007-09-12)
Concern is continuously raised about the safety of parabens which are present in most of the cosmetic preparations. In this investigation, methyl-, ethyl-, propyl- and butyl paraben (MP, EP, PP, BP), in a commercial cosmetic lotion, were deposited on human
S Nicoli et al.
Journal of pharmaceutical sciences, 97(11), 4830-4839 (2008-03-05)
This work aims at investigating the nicotinamide (NA)-ethyl-paraben (EP) binary system both in solution and in the solid state. In particular, the apparent EP solubility in water was studied in the presence of different NA concentrations (between 0.28 and 1.64
Shinshi Oishi
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 42(11), 1845-1849 (2004-09-08)
Parabens are alkyl esters of p-hydroxybenzoic acid widely used as preservatives in foodstuffs, cosmetics toiletries and pharmaceuticals. These compounds are known to exert a weak estrogenic activity in estrogen receptor assays in vitro. In addition butyl and propyl parabens show
Christopher Jewell et al.
Toxicology and applied pharmacology, 225(2), 221-228 (2007-09-25)
Parabens are esters of 4-hydroxybenzoic acid and used as anti-microbial agents in a wide variety of toiletries, cosmetics and pharmaceuticals. It is of interest to understand the dermal absorption and hydrolysis of parabens, and to evaluate their disposition after dermal
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