Isoxazolo[5',4':3,4]benzo[1,2-c][1,2,5]oxadiazole CAS 133818-22-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 133818-22-1 |
| Molecular Formula | C7H3N3O2 |
| Molecular Weight | 161.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Isoxazolo[5',4':3,4]benzo[1,2-c][1,2,5]oxadiazole (CAS 133818-22-1), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C7H3N3O2. Molecular weight: 161.12 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C7H3N3O2 |
| 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, 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 3 |
Related Isoxazolo Standards
- Isoxazolo[4',5':3,4]benzo[1,2-c][1,2,5]oxadiazole (CAS 126877-68-7)
- Isoxazolo[4,5-e][1,2,4]triazolo[4,3-c]pyrimidine (CAS 80161-12-2)
- 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
- 3-Methyl-5-(trifluoromethyl)pyridine (CAS 131748-15-7)
- 5-(Difluoromethyl)-2-fluoroaniline (CAS 1374298-68-6)
- 2,3,4-Trifluoro-5-methylaniline (CAS 1536760-94-7)
- (2S,4S)-1-(tert-Butoxycarbonyl)-4-(4-ethyl-phenoxy)-2-pyrrolidinecarboxylic acid (CAS 1354487-05-0)
- (5S)-6-[(tert-butoxy)carbonyl]-6-azaspiro[2.5]octane-5-carboxylic acid (CAS 1262396-32-6)
- 3-((3,4,5,6-Tetrahydro-2H-azepin-7-yl)amino)propanoic acid (CAS 5249-21-8)
- 5-Bromo-N-(((2S,5S)-5-methylpiperidin-2-yl)methyl)pyridin-2-amine (CAS 1191044-59-3)
- 2-Ethyl-4-(((2-methylthiazol-4-yl)methyl)thio)-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidine (CAS 690643-70-0)
- (-)-(1S)-N,N'-(6,6'-Dimethoxy[1,1'-biphenyl]-2,2'-diyl)bis[P,P-diphenylphosphinous amide] (CAS 524001-80-7)
- Semaglutide impurity 63 (CAS CATO-C4X-222663)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 13829788188 / jacky.chen@cato-chem.com