Description
4-Hydroxybenzoic acid ethyl ester is a phenolic ester supplied as a ROTICHROM® HPLC grade reference for analytical and chromatographic applications. It is identified by CAS number 120-47-8 and empirical formula C₉H₁₀O₃, with a molar mass of 166,18 g/mol and a density of 1,291 g/cm³. The boiling point is 178 °C. Packaged as 1 g in glass, the quantity suits calibration, method validation, and comparative HPLC work on paraben-type structures. This ester, also known in analytical contexts as ethylparaben, supports assays in pharmaceutical, cosmetic, and food-related laboratories where defined reference materials are required. Product data from manufacturer Carl ROTH include EG number 204-399-4 for documentation. The ROTICHROM® HPLC designation underlines fitness for high-performance liquid chromatography. Physical constants enable straightforward integration into SOPs, while the compact glass pack minimises waste for laboratories that need only gram-scale reference amounts for routine quantitative or qualitative analysis.
This article is part of HPLC & LC-MS grade solvents, in Solvents. See also Analytical grade solvents (p.a.).
Key features
- Purity (HPLC): ≥99 %
- CAS number: 120-47-8
- Pack size: 1 g glass
- EG nr.: 204-399-4
- Empirical formula: C₉H₁₀O₃
- Molar mass: 166,18 g/mol
- Technical Information Sheet:
- Safety Data Sheet:
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Questions about 4-Hydroxybenzoic acid ethyl ester, ROTICHROM® HPLC, 1 g, glass
What is this article?
4-Hydroxybenzoic acid ethyl ester, ROTICHROM® HPLC, 1 g, glass is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in HPLC & LC-MS grade solvents, inside Solvents, in Lab chemicals.
HPLC grade limits the absorbance and the residue that would appear as peaks or baseline drift. LC-MS grade goes further on metal ions and on particles that would suppress a mass spectrum. A solvent that is only analytical grade is a false economy on an LC-MS system.
A solvent dissolves. The grade says which impurities are low enough for the method. Analytical grade is the ordinary pure solvent. HPLC and LC-MS grades limit the absorbance and the ions that would become peaks or background. A dry solvent has had water removed. A deuterated solvent is for NMR, where the hydrogen signal would otherwise drown the sample. Technical grade is for cleaning and for synthesis that does not need a chromatogram. Identity is on PubChem. Names follow IUPAC. Hazards follow ECHA, the CLP Regulation and REACH.
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Shelves beside this one are Analytical grade solvents (p.a.), Dry & deuterated solvents (NMR, synthesis), Technical & synthesis grade solvents and Green & alternative solvents.
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