3-(4-methylphenyl)-1,2,4-oxadiazol-5-amine CAS 3663-38-5
| CAS No. | 3663-38-5 |
| Molecular Formula | C9H9N3O |
| Molecular Weight | 175.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3-(4-methylphenyl)-1,2,4-oxadiazol-5-amine (CAS 3663-38-5), a certified reference material (molecular formula C9H9N3O, MW 175.19 g/mol) for analytical method development and quality control.
The molecular framework of 3-(4-methylphenyl)-1,2,4-oxadiazol-5-amine (C9H9N3O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C9H9N3O |
| Molecular Weight | 175.19 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.) | 1958 |
| Nitrogen Atoms | 3 |
Related methylphenyl Standards
- 1-(2-Methylphenyl)-1h-1,2,3,4-tetrazol-5-amine (CAS 127866-79-9)
- 1-(4-methylphenyl)-1H-1,2,3,4-tetrazol-5-amine (CAS 39889-77-5)
- 4-(2-Methylphenyl)-1,2,5-oxadiazol-3-amine (CAS 22899-59-8)
- 4-(3-Methylphenyl)-1,2,5-oxadiazol-3-amine (CAS 22899-60-1)
- 4-(4-methylphenyl)-2,3-dihydro-1,2,5-oxadiazol-3-imine (CAS 99817-28-4)
- 4-(4-Methylphenyl)-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 93192-57-5)
- 3-(2-Methylphenyl)-1,2-oxazol-5-ol (CAS 1354916-88-3)
- 3-(3-Methylphenyl)-1,2-oxazol-5-ol (CAS 1354938-89-8)
Recommended Standards
- 3-(4-Methoxyphenyl)-1H-1,2,4-triazole (CAS 64310-35-6)
- 3-(Aminomethyl)quinazolin-4(3H)-one (CAS 69061-85-4)
- 3-(3-Methyl-1,2,4-oxadiazol-5-yl)aniline (CAS 76629-35-1)
- 3-(Aminomethyl)quinoxalin-2-ol (CAS 933700-37-9)
- 2,5-Diethylthiazol-4-amine (CAS 2567557-87-1)
- 3-Ethyl 4,5-dimethyl 1H-pyrazole-3,4,5-tricarboxylate (CAS 16314-74-2)
- N2-{2-[(2-chloro-6-fluorobenzyl)thio]ethyl}-1-(dichloromethyl)indane-2-carboxamide (CAS 647824-87-1)
- (3-((1,4-Dioxa-8-azaspiro[4.5]Decan-8-yl)methyl)phenyl)(cyclopentyl)methanone (CAS 898762-52-2)
- Carteolol Impurity 35 (CAS CATO-C4X-228735)
- 8-Methylimidazo[1,2-a]pyridin-2-amine (CAS 1260839-78-8)
- 1-Bromo-3-butoxy-5-chlorobenzene (CAS 1881291-12-8)
- 8-Nitro-7-oxo-7,10-dihydro-1,10-phenanthroline-3-carboxylic acid (CAS 223664-42-4)
- tert-Butyl 4-(4-oxocyclohexyl)piperazine-1-carboxylate (CAS 1262409-94-8)
- Biotinyl-Neuropeptide W-23 (human) (CAS 1815618-09-7)
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