Benzylparaben CAS 94-18-8
| CAS No. | 94-18-8 |
| Molecular Formula | C14H12O3 |
| Molecular Weight | 228.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 228.24 g/mol gives Benzylparaben distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Benzylparaben (CAS 94-18-8), molecular formula C14H12O3 and molecular weight 228.24 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Benzylparaben (C14H12O3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C14H12O3 |
| Molecular Weight | 228.24 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Recommended Standards
- Trioxsalen (CAS 3902-71-4)
- 2-Hydroxy-4-Methoxybenzophenone (CAS 131-57-7)
- Trans-Resveratrol (CAS 501-36-0)
- Desmethoxyyangonin (CAS 15345-89-8)
- Ethyl 4-aminochromane-4-carboxylate (CAS 500858-62-8)
- N-Heptyl-3-methylaniline (CAS 167023-89-4)
- 2-Fluoro-6-methoxyphenol 3-FLUORO-2-HYDROXYANISOLE 73943-41-6 AS05493 (CAS 73943-41-6)
- 4-(1-Propylpiperidin-3-yl)-1H-indole maleate (CAS 83363-37-5)
- 4-(2-Chloro-6-fluorophenyl)-3-(methylsulfonyl)-1H-pyrazole (CAS 1707563-50-5)
- 2-(2-Chloro-6-fluorophenyl)azetidine (CAS 1270366-19-2)
- tert-Butyl (S)-4-ethynyl-2,2-dimethyloxazolidine-3-carboxylate (CAS 173065-16-2)
- Fluorescein-O'-acetic Acid (CAS 233759-98-3)
- N,N-Dimethyl-N'-(2-(methylthio)pyrimidin-5-yl)formimidamide (CAS 52767-93-8)
- Des-Ile17-Tirzepatide (CAS CATO-CPTD788956)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com