1-Oxo-1-[5-(2-pyridyl)oxazol-2-yl]-7-phenylheptane CAS 681135-77-3
| CAS No. | 681135-77-3 |
| Molecular Formula | C21H22N2O2 |
| Molecular Weight | 334.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1-Oxo-1-[5-(2-pyridyl)oxazol-2-yl]-7-phenylheptane 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.
1-Oxo-1-[5-(2-pyridyl)oxazol-2-yl]-7-phenylheptane (CAS 681135-77-3), molecular formula C21H22N2O2 and molecular weight 334.41 g/mol, is a CATO reference standard with documented purity and traceability.
1-Oxo-1-[5-(2-pyridyl)oxazol-2-yl]-7-phenylheptane (C21H22N2O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C21H22N2O2 |
| Molecular Weight | 334.41 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 2 |
Related Oxo Standards
- (2-Pyridyl)dithiobimane (CAS 385398-64-1)
- 1,3,5-Tri(3-pyridyl)-1,5-pentanoate 1,3,5-Tri-3-pyridinyl-1,5-pentanedione 1,3,5-Tris(3-pyridyl)pentane-1,5-dione 94678-45-2 (CAS 94678-45-2)
- 2-(3-Pyridyl)-N-[2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4-pyridyl]acetamide (CAS 2246726-04-3)
- N-(4-Pyridyl)-N'-(2,4,6-trichlorophenyl)urea (CAS 97627-27-5)
- 4-[2-(2-Pyridyl)-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazol-3-yl]quinolin-7-ol (CAS 476474-11-0)
- 8-[2-(2-Pyridyl)phenyl]-5H-pyrido[3,2-b]indole (CAS 1251503-35-1)
- Bis[2-(2-pyridyl)-ethyl]methylamine (CAS 236745-06-5)
- Tris(4-pyridyl)-s-triazine (CAS 42333-78-8)
Recommended Standards
- 1-Methyl-N-(naphthalen-2-yl)benzo[f]quinolin-3-amine (CAS 883841-09-6)
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- 1-Boc-4-(Cbz-amino)piperidine (CAS 220394-97-8)
- 2-((4-Benzylpiperazin-1-yl)methyl)quinazolin-4-ol (CAS 866010-70-0)
- 2-(2-Butoxyethyl)isoindoline-1,3-dione (CAS 56058-19-6)
- (S,S)-iPr-Dbfox (CAS 409312-96-5)
- 4-(2,5-Dichlorophenyl)-6-(methylthio)-1,3,5-triazin-2-amine (CAS 61452-97-9)
- 4-Fluoro-1H-pyrrolo[2,3-c]pyridin-2(3H)-one (CAS 1190310-68-9)
- 2-Ethyl-5,6,7,8-tetrahydroquinazoline-6-carboxylic acid (CAS 1367810-58-9)
- 3-(2-(Methylsulfonyl)ethyl)azetidin-3-ol (CAS 1483535-08-5)
- 1-Benzyl-1H-1,2,3,4-tetrazole-5-thiol (CAS 33898-72-5)
- 4-Fluoro-2-((2-fluorobenzyl)oxy)benzaldehyde (CAS 1443346-02-8)
- 4-(4-Methoxybenzyl)-3-oxo-3,4-dihydropyrazine-2-carboxylic acid (CAS 1956364-53-6)
- Insulin Degludec Impurity 7 (CAS CATO-C4X-21577)
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