Diethyl 2,6-dimethylterephthalate CAS 408536-82-3
| CAS No. | 408536-82-3 |
| Molecular Formula | C14H18O4 |
| Molecular Weight | 250.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Diethyl 2,6-dimethylterephthalate (CAS 408536-82-3), a certified reference material (molecular formula C14H18O4, MW 250.29 g/mol) for analytical method development and quality control.
Based on its molecular formula C14H18O4, Diethyl 2,6-dimethylterephthalate contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 250.29 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), Diethyl 2,6-dimethylterephthalate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C14H18O4 |
| Molecular Weight | 250.29 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
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- 7-Hydroxy-3-(2-methoxyphenyl)-2-methyl-8-(pyrrolidin-1-ylmethyl)-4H-chromen-4-one (CAS 637753-62-9)
- 2-Methoxy-1-(pyridin-2-yl)ethanone (CAS 105729-06-4)
- Glaucine Hbr(P) (CAS 50722-32-2)
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