Isoxazolo[4,5-e][1,2,4]triazolo[4,3-c]pyrimidine CAS 80161-12-2
| CAS No. | 80161-12-2 |
| Molecular Formula | C6H3N5O |
| Molecular Weight | 161.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Isoxazolo[4,5-e][1,2,4]triazolo[4,3-c]pyrimidine (C6H3N5O) is characterized by an amide group, a hydroxyl group, an ether linkage, an aromatic ring system. 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Isoxazolo[4,5-e][1,2,4]triazolo[4,3-c]pyrimidine (CAS 80161-12-2), molecular formula C6H3N5O and molecular weight 161.12 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Isoxazolo[4,5-e][1,2,4]triazolo[4,3-c]pyrimidine 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 | C6H3N5O |
| Molecular Weight | 161.12 g/mol |
| Appearance | Pale yellow to 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Nitrogen Atoms | 5 |
Related Isoxazolo Standards
- Isoxazolo[4',5':3,4]benzo[1,2-c][1,2,5]oxadiazole (CAS 126877-68-7)
- Isoxazolo[5',4':3,4]benzo[1,2-c][1,2,5]oxadiazole (CAS 133818-22-1)
- 7H-Isoxazolo[4,5-c]pyrazolo[1,2-a]pyridazine (CAS 121014-31-1)
- 2H-Isoxazolo[5,4-d]azonine (CAS 154099-32-8)
- 2H-Isoxazolo[5,4-d]pyrazolo[3,4-b]pyridine (CAS 106990-55-0)
- 1H-Isoxazolo[3,4-d]pyrazolo[3,4-b]pyridine (CAS 107457-74-9)
- Isoxazolo[4,3-e]pyrazolo[1,5-a]pyrimidine (CAS 149626-22-2)
- 2H-Isoxazolo[5,4-b]pyrazolo[4,3-e]pyridine (CAS 404345-61-5)
Recommended Standards
- 7-Oxo-4h,7h-[1,2,4]triazolo[1,5-a]pyrimidine-6-carbonitrile (CAS 89488-67-5)
- rel-(2R,3R)-N2,N3-Dihydroxyaziridine-2,3-dicarboxamide (CAS 66620-05-1)
- 4-Amino-N-hydroxy-3-oxoisoxazolidine-5-carboxamide (CAS 66619-96-3)
- (2,4,5-trifluorophenyl)methanamine 2,4,5-Trifluoro-N-methylaniline 256412-92-7 (CAS 256412-92-7)
- N-(2,3-dimethylphenyl)-2-nitrobenzamide (CAS 102630-94-4)
- BDP TR maleimide (CAS 2183473-37-0)
- Methyl 4-formyl-1,2,3-thiadiazole-5-carboxylate (CAS 153173-64-9)
- 1,3-Dichloro-2-(diethoxymethyl)benzene (CAS 35364-85-3)
- 5'H,7'H-spiro[cyclobutane-1,6'-pyrazolo[5,1-b][1,3]oxazine]-2'-carboxylic acid (CAS 1707365-33-0)
- 1-Chloro-9-fluorononane (CAS 463-23-0)
- 5-(4-Chlorophenyl)-6-(ethoxymethyl)pyrimidine-2,4-diamine (CAS 2032-90-8)
- 1-(4-Chlorobenzenesulfonyl)-4-(propan-2-yl)benzene (CAS 883832-73-3)
- 4-(4-Bromophenyl)-3-buten-2-one (CAS 20511-04-0)
- Tirzepatide Impurity 16 (CAS CATO-C4X-324016)
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