Ethyl 4-(3-(4-ethylphenoxy)phenyl)-1-hydroxy-2-oxopyrrolidine-3-carboxylate CAS 866154-81-6
| CAS No. | 866154-81-6 |
| Molecular Formula | C21H23NO5 |
| Molecular Weight | 369.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Ethyl 4-(3-(4-ethylphenoxy)phenyl)-1-hydroxy-2-oxopyrrolidine-3-carboxylate (CAS 866154-81-6), molecular formula C21H23NO5 and molecular weight 369.41 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Ethyl 4-(3-(4-ethylphenoxy)phenyl)-1-hydroxy-2-oxopyrrolidine-3-carboxylate (C21H23NO5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 369.41 g/mol, it falls into the moderately-high-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 4-(3-(4-ethylphenoxy)phenyl)-1-hydroxy-2-oxopyrrolidine-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 | C21H23NO5 |
| Molecular Weight | 369.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
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Recommended Standards
- Ethyl 4-(2-cyclopentylacetamido)-6-oxo-1-phenyl-1,6-dihydropyridazine-3-carboxylate (CAS 942009-76-9)
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- Ethyl 2-(4-fluorobenzamido)-5-phenylthiophene-3-carboxylate (CAS 380646-10-6)
- Fmoc-D-Ser(nPr)-OH (CAS 2349477-13-8)
- (4-(Difluoromethoxy)benzyl)hydrazine hydrochloride (CAS 1059626-03-7)
- 1-(4-Methoxyphenyl)-2-(piperazin-1-yl)ethan-1-one (CAS 438487-09-3)
- 1-(4-Methoxyphenyl)-2-(propylthio)ethan-1-one (CAS 1157363-86-4)
- bis(2-(tridecylthio)ethyl) 3,3'-((2-aminoethyl)azanediyl)dipropionate (CAS CATO-C3D-262332)
- 2-((6-Chloro-4-(trifluoromethyl)pyridin-2-yl)thio)ethan-1-ol (CAS 188591-51-7)
- Plerixafor Impurity 36 8HCl (CAS CATO-C4X-113336)
- N-Nitroso Ambroxol impurity 119 (CAS CATO-C4X-1085119)
- 2-Chloro-2-(3-chlorophenyl)acetonitrile (CAS 1251275-91-8)
- 6-Bromo-2-(dimethylamino)-1H-indole-3-carbaldehyde (CAS 1198475-47-6)
- Liraglutide Impurity 10 TFA Salt (CAS CATO-C4X-199210)
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