7-(Diethylamino)-3-(5-(pyridin-4-yl)-1,3,4-oxadiazol-2-yl)-2H-chromen-2-one CAS 252551-75-0
| CAS No. | 252551-75-0 |
| Molecular Formula | C20H18N4O3 |
| Molecular Weight | 362.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
7-(Diethylamino)-3-(5-(pyridin-4-yl)-1,3,4-oxadiazol-2-yl)-2H-chromen-2-one (CAS 252551-75-0), molecular formula C20H18N4O3 and molecular weight 362.38 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 7-(Diethylamino)-3-(5-(pyridin-4-yl)-1,3,4-oxadiazol-2-yl)-2H-chromen-2-one (C20H18N4O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 362.38 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 7-(Diethylamino)-3-(5-(pyridin-4-yl)-1,3,4-oxadiazol-2-yl)-2H-chromen-2-one 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 | C20H18N4O3 |
| Molecular Weight | 362.38 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 4 |
Related Diethylamino Standards
- N-((4-(Diethylamino)phenyl)carbamothioyl)-5-nitrofuran-3-carboxamide (CAS 117457-82-6)
- 7-(Diethylamino)-3-(5,6-dimethylbenzo[d]oxazol-2-yl)-2H-chromen-2-one (CAS 57980-76-4)
- 4-((4-(Diethylamino)phenyl)imino)-N-methyl-1-oxo-1,4-dihydronaphthalene-2-carboxamide (CAS 4899-82-5)
- 2-(7-(Diethylamino)-2-oxo-2H-chromen-3-yl)quinazolin-4(3H)-one (CAS 28754-28-1)
- 3-(3-(4-(Diethylamino)phenyl)acryloyl)-4-hydroxy-2H-chromen-2-one (CAS 1192030-17-3)
- 2-(4-(Diethylamino)styryl)-N,N-diethylbenzo[d]oxazol-6-amine (CAS 72924-71-1)
- 2-(2-(Diethylamino)ethyl)-1-oxo-4-phenyl-1,2-dihydroisoquinoline-3-carboxylic acid (CAS 112392-94-6)
- 5-((2-(Diethylamino)ethyl)thio)-1,3-dimethyl-6-propylpyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione (CAS 900004-79-7)
Recommended Standards
- 6,7-Dimethoxy-8-((6-methoxyisoquinolin-7-yl)oxy)isoquinoline (CAS 87179-86-0)
- 7-Amino-6-oxo-9-phenyl-6H-dibenzo[c,h]chromene-8-carbonitrile (CAS 30155-83-0)
- 5-Acetyl-2-(((3-(4-methoxyphenyl)isoxazol-5-yl)methyl)amino)-6-methylnicotinonitrile (CAS 338749-68-1)
- 7-Methyl Camptothecin (CAS 78287-26-0)
- (E)-N'-Hydroxy-2-(4-hydroxyphenyl)acetimidamide (CAS 58484-76-7)
- 2-(4-(Trifluoromethyl)pyridin-3-yl)ethanamine (CAS 910386-63-9)
- (2Z)-3-[(3,5-Dichlorophenyl)amino]-2-[4-(3-fluoropropoxy)phenyl]prop-2-enenitrile (CAS 478039-53-1)
- (s)-1-(2-Bromobenzyl)pyrrolidin-3-amine dihydrochloride (CAS 1286207-18-8)
- 2,2,4-Trimethylpent-4-enoic acid (CAS 56001-56-0)
- N-cyclohexyl-2-(1,1,2,2,3,3,4,4,5,5,6,6,6-tridecafluorohexyl)benzamide (CAS 680213-82-5)
- (E)-2-Cyano-3-(2-hydroxy-3-methoxyphenyl)-N-[4-(trifluoromethyl)phenyl]-2-propenamide (CAS 866156-40-3)
- Boc-D-Glu(OtBu)-OH (CAS 104719-63-3)
- 2-(2-Aminoethyl)-6-(furan-2-yl)pyridazin-3(2H)-one (CAS 1105192-13-9)
- [Ser39-OH] Tirzepatide (CAS CATO-C4X-324041)
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