5-(Benzo[d]oxazol-2-yl)-1,3,4-oxadiazol-2-ol CAS 83058-94-0
| CAS No. | 83058-94-0 |
| Molecular Formula | C15H20O3 |
| Molecular Weight | 248.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
5-(Benzo[d]oxazol-2-yl)-1,3,4-oxadiazol-2-ol (CAS 83058-94-0) is a high-purity analytical reference standard with the molecular formula C15H20O3 and a molecular weight of 248.32 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 5-(Benzo[d]oxazol-2-yl)-1,3,4-oxadiazol-2-ol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 248.32 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
Physical & Chemical Properties
| Molecular Formula | C15H20O3 |
| Molecular Weight | 248.32 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
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Recommended Standards
- 5-(5-Methyl-2-thienyl)thieno[2,3-d]pyrimidin-4-one, >97% (CAS 851116-03-5)
- 5-(Boc-amino)-1,2,3,4-tetrahydroquinoline (CAS 885951-72-4)
- 5-(4-Isopropylphenyl)-3-methyl-5-oxovaleric acid (CAS 951893-25-7)
- 5'-(Prop-1-yn-1-yl)-[2,2'-bithiophene]-5-carboxylic acid (CAS 32155-99-0)
- 1-(Cyclohexylsulfonyl)-4-(((4-methoxyphenyl)thio)methyl)piperidine (CAS 1421463-08-2)
- 1-Benzyl-4-chloro-1H-pyrazolo[3,4-b]pyridine-5-carboxylic acid (CAS 1363404-69-6)
- 2,7-Bis(piperidin-1-ylsulfonyl)-9H-fluoren-9-one (CAS 210411-42-0)
- Benzyl 3-(aminomethyl)pyrrolidine-1-carboxylate (CAS 315717-77-2)
- N-(2-Fluorophenyl)-5-pyrrolidin-2-yl-1,3,4-thiadiazole-2-carboxamide (CAS 1217863-01-8)
- 7-Chloro-5H-pyrrolo[2,3-b]pyrazine (CAS 1289024-66-3)
- (3-((2-(Hydroxymethyl)phenyl)dimethylsilyl)phenyl)(morpholino)methanone (CAS 1244855-69-3)
- Ruxolitinib Impurity 225 (CAS CATO-C4X-2058225)
- Benzethidine hydrobromide (CAS 1049728-53-1)
- Semaglutide impurity 61 (CAS CATO-C4X-222661)
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