Ethyl 5-(tert-butyl)-2-methyl-1-phenyl-1H-pyrrole-3-carboxylate CAS 175276-55-8
| CAS No. | 175276-55-8 |
| Molecular Formula | C18H23NO2 |
| Molecular Weight | 285.38 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.
Ethyl 5-(tert-butyl)-2-methyl-1-phenyl-1H-pyrrole-3-carboxylate (CAS 175276-55-8), molecular formula C18H23NO2 and molecular weight 285.38 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Ethyl 5-(tert-butyl)-2-methyl-1-phenyl-1H-pyrrole-3-carboxylate (C18H23NO2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 285.38 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), Ethyl 5-(tert-butyl)-2-methyl-1-phenyl-1H-pyrrole-3-carboxylate 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 | C18H23NO2 |
| Molecular Weight | 285.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2007 |
| Nitrogen Atoms | 1 |
Recommended Standards
- Tert-butyl (R)-3-(tert-butylcarbamoyl)piperazine-1-carboxylate (CAS 171866-36-7)
- Tert-butyl 4-(2-ethoxy-2-oxoethyl)-4-methylpiperidine-1-carboxylate (CAS 1772585-44-0)
- tert-Butyl (1-oxo-1-(piperidin-4-ylamino)butan-2-yl)carbamate (CAS 1706813-74-2)
- 1-[(tert-Butoxy)carbonyl]-3,3,5,5-tetramethylpiperidine-4-carboxylic acid (CAS 1780565-88-9)
- 5-Amino-3-methylpentanoic acid hydrochloride (CAS 1394771-79-9)
- 2-Amino-3-methoxy-5-methylbenzoic acid (CAS 80389-40-8)
- 4-Amino-2-chloro-6-fluorophenol (CAS 62918-76-7)
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- Isopropyl 2-3-4-6-tetra-O-benzyl-β-D-glucopyranoside (CAS 114967-51-0)
- 1-Cyclopropyl-6-oxo-1,6-dihydropyridine-3-carboxylic acid (CAS 677762-57-1)
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- 2-Vinyl-benzoic acid ethyl ester (CAS 32082-32-9)
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