3-Ethoxy-4-methyl-5-(1-methyl-1H-1,2,4-triazol-5-yl)isoxazole CAS 194286-88-9
| CAS No. | 194286-88-9 |
| Molecular Formula | C9H12N4O2 |
| Molecular Weight | 208.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Ethoxy-4-methyl-5-(1-methyl-1H-1,2,4-triazol-5-yl)isoxazole (CAS 194286-88-9) is a high-purity analytical reference standard with the molecular formula C9H12N4O2 and a molecular weight of 208.22 g/mol.
Structurally, 3-Ethoxy-4-methyl-5-(1-methyl-1H-1,2,4-triazol-5-yl)isoxazole (C9H12N4O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 208.22 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.
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), 3-Ethoxy-4-methyl-5-(1-methyl-1H-1,2,4-triazol-5-yl)isoxazole 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 | C9H12N4O2 |
| Molecular Weight | 208.22 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 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2012 |
| Nitrogen Atoms | 4 |
Related Ethoxy Standards
- 3-Ethoxy-4-methyl-5-(1-methyl-1H-1,2,4-triazol-3-yl)isoxazole (CAS 194286-94-7)
- 4-Ethoxy-6-(furan-2-yl)-1,6-dihydro-1,3,5-triazin-2-amine (CAS 693209-45-9)
- 7-Ethoxy-3-ethyl-3H-[1,2,3]triazolo[4,5-d]pyrimidin-5-amine (CAS 6270-26-4)
- 5-Ethoxy-2,3-dihydrobenzofuran-2-carboxylic acid (CAS 1269530-78-0)
- methyl 3-ethoxy-4-formylbenzoate (CAS 1357352-32-9)
- 3-(3-Ethoxy-4-hydroxyphenyl)acrylic acid (CAS 16555-66-1)
- 3-Ethoxy-3-oxo-2-phenyl propanoic acid (CAS 17097-90-4)
- 2-Ethoxy-6-(furan-2-yl)-2H-pyran-4(3H)-one (CAS 186134-93-0)
Recommended Standards
- 6-(dimethylamino)-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carbonitrile (CAS 1909348-67-9)
- 2-(1-Amino-3-hydroxypropyl)pyrrolo[2,1-f][1,2,4]triazin-4(1H)-one (CAS 1822624-69-0)
- (4-(Trifluoromethyl)bicyclo[2.2.2]Octan-1-yl)methanol (CAS 94994-14-6)
- 5-Nitrothiophene-2-sulfonamide (CAS 17510-82-6)
- Potassium 8,9,10-trihydroxy-2,6-dioxo-2,6-dihydropyrano[3,2-c]isochromen-3-olate (CAS 1780260-20-9)
- 1-pyridazin-3-ylethanamine (CAS 1532982-62-9)
- 2-Chloro-3-methylisonicotinic Acid (CAS 133928-73-1)
- (S)-2-Amino-1-(4-(isopropyl(methyl)amino)piperidin-1-yl)propan-1-one (CAS 1354020-23-7)
- 2-Allylpyridazin-3(2H)-one (CAS 65536-87-0)
- tert-Butyl (S)-3-(((trifluoromethyl)sulfonyl)oxy)pyrrolidine-1-carboxylate (CAS 1421026-22-3)
- 6-((3,4-Dichlorophenyl)amino)-3-methylpyrimidine-2,4(1H,3H)-dione (CAS 65626-83-7)
- 2-Methyl-5-(6-(4-(2-(trifluoromethyl)phenoxy)piperidin-1-yl)pyridazin-3-yl)-1,3,4-thiadiazole (CAS 921605-87-0)
- 2-iodo-1-methoxypropane (CAS 22461-49-0)
- (Leu31,Pro3?)-Neuropeptide Y (porcine) trifluoroacetate salt (CAS 125580-28-1)
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