5-Hydrazinyl-3-phenyl-1,2,4-oxadiazole CAS 7627-10-3
| CAS No. | 7627-10-3 |
| Molecular Formula | C8H8N4O |
| Molecular Weight | 176.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Hydrazinyl-3-phenyl-1,2,4-oxadiazole (CAS 7627-10-3), molecular formula C8H8N4O and molecular weight 176.18 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H8N4O, 5-Hydrazinyl-3-phenyl-1,2,4-oxadiazole contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 176.18 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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.
Physical & Chemical Properties
| Molecular Formula | C8H8N4O |
| Molecular Weight | 176.18 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 |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Nitrogen Atoms | 4 |
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Recommended Standards
- 5-Hydrazino-1-phenyl-1H-1,2,3,4-tetraazole (CAS 5533-43-7)
- 6,7-Diaminoquinoxalin-2-ol (CAS 956622-43-8)
- 5-Amino-2-phenyl-1H-1,2,4-triazol-3(2H)-one (CAS 29472-94-4)
- 6,7-Dihydro-5H-cyclopenta[d][1,2,4]triazolo[1,5-a]pyrimidin-8-ol (CAS 29814-17-3)
- 126312-62-7 KS-000024FP methyl (2Z)-3-[4-(benzyloxy)-2,6-dimethylphenyl]-2-acetamidoprop-2-enoate (CAS 126312-62-7)
- R-Indoxacarb (CAS 185608-75-7)
- 2,4-Dimethoxy-6-(trifluoromethyl)pyrimidine (CAS 76513-87-6)
- 3-Azabicyclo[4.1.0]Heptan-6-ol 2,2,2-trifluoroacetate (CAS 2387594-98-9)
- 2-(Cyclohex-1-en-1-yl)-N-(4-methoxybenzyl)ethan-1-amine hydrochloride (CAS 1048640-95-4)
- N-[4-(1-Naphthyl)phenyl]-4-biphenylamine (CAS 897921-59-4)
- potassium 4-butyl-1,3-thiazole-2-carboxylate (CAS 1240526-62-8)
- 4-Phenyl-1H-pyrrole-3-carboxylic Acid (CAS 132040-12-1)
- S-(Pyridin-2-ylmethyl) ethanethioate (CAS 35250-75-0)
- Semaglutide impurity 86 (CAS CATO-C4X-152686)
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