2-(2-Hydroxyphenyl)-5,6-dihydro-4H-1,3,4-oxadiazin-5-one CAS 28669-14-9
| CAS No. | 28669-14-9 |
| Molecular Formula | C9H8N2O3 |
| Molecular Weight | 192.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(2-Hydroxyphenyl)-5,6-dihydro-4H-1,3,4-oxadiazin-5-one (CAS 28669-14-9), molecular formula C9H8N2O3 and molecular weight 192.17 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-(2-Hydroxyphenyl)-5,6-dihydro-4H-1,3,4-oxadiazin-5-one (C9H8N2O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 192.17 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.
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 manufactures 2-(2-Hydroxyphenyl)-5,6-dihydro-4H-1,3,4-oxadiazin-5-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H8N2O3 |
| Molecular Weight | 192.17 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Nitrogen Atoms | 2 |
Related Hydroxyphenyl Standards
- (E)-4-(4-Hydroxyphenyl)-4-oxobut-2-enoic acid (CAS 86690-79-1)
- (R)-5-(4-Hydroxyphenyl)imidazolidine-2,4-dione (CAS 71698-10-7)
- 1-(4-Hydroxyphenyl)imidazolidine-2,4-dione (CAS 26850-25-9)
- 4-(4-Hydroxyphenyl)-4-oxobut-2-enoic acid (CAS 24849-48-7)
- 5-(2-Hydroxyphenyl)imidazolidine-2,4-dione (CAS 77972-18-0)
- 5-(3-hydroxyphenyl)imidazolidine-2,4-dione (CAS 68027-73-6)
- 5-(4-Hydroxyphenyl)hydantoin (CAS 2420-17-9)
- 1-(3-Hydroxyphenyl)cyclobutane-1-carboxylic acid (CAS 1307837-71-3)
Recommended Standards
- 2-(2-hydroxyethyl)-1H,2H,3H-pyrrolo[3,4-c]pyridine-1,3-dione (CAS 87544-89-6)
- 2-(2-Methoxy-5-nitrophenyl)acetonitrile (CAS 99459-52-6)
- 2-(2,3-Dihydrobenzofuran-5-yl)-2-oxoacetic acid (CAS 79002-48-5)
- 2-(2-Methoxy-6-nitrophenyl)acetonitrile (CAS 20876-27-1)
- 5-(Chloromethyl)-2-methoxy-3-methylpyridine (CAS 1355173-98-6)
- 4-((2,5-Dibromophenyl)sulfonyl)morpholine (CAS 398996-97-9)
- 2-chloro-1-{1H-pyrrolo[3,2-c]pyridin-3-yl}ethan-1-one (CAS 1599634-01-1)
- 3,4-Dimethylphenol (CAS 95-65-8)
- (S)-6-azaspiro[3.4]Octane-8-carboxylic acid (CAS 2110508-01-3)
- (αS,5R)-α,2-Diamino-4,5-dihydro-1H-imidazole-5 Propanoic Acid (CAS 21209-39-2)
- 4,4,4-Trifluoro-3-(1-methyl-1h-imidazol-5-yl)butanoic acid (CAS 1468558-71-5)
- 1-Cycloheptyl-2,2,2-trifluoroethan-1-ol (CAS 1477872-46-0)
- 2-chloro-N-(2-chloro-4-methylphenyl)propanamide (CAS 1040079-49-9)
- Semaglutide impurity 22(OtBu-Ste-γGlu(OtBu)-AEEA-AEEA-OH) (CAS 1118767-16-0)
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