5-Amino-4-benzylisoxazol-3(2H)-one CAS 881-25-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 881-25-4 |
| Molecular Formula | C10H7Cl2N5O2 |
| Molecular Weight | 300.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Amino-4-benzylisoxazol-3(2H)-one (CAS 881-25-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C10H7Cl2N5O2. Molecular weight: 300.10 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C10H7Cl2N5O2 |
| Molecular Weight | 300.10 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
Related Amino Standards
- 2-(6-Amino-8-bromo-9H-purin-9-yl)ethyl acetate (CAS 874903-79-4)
- (2S)-(+)-Amino-6-iodoacetamidohexanoic Acid (CAS 35748-65-3)
- Ethyl 5-amino-1-(2,4-dichlorophenyl)-1H-pyrazole-3-carboxylate (CAS 1264039-24-8)
- Ethyl 5-amino-1-(2,5-dichlorophenyl)-1H-pyrazole-4-carboxylate (CAS 1264041-82-8)
- Ethyl 5-amino-1-(3,4-dichlorophenyl)-1H-pyrazole-3-carboxylate (CAS 1264043-82-4)
- Ethyl 5-amino-1-(2,3-dichlorophenyl)pyrazole-4-carboxylate (CAS 1285132-66-2)
- Ethyl 5-amino-4-chloro-1-(4-chlorophenyl)-1H-pyrazole-3-carboxylate (CAS 1427012-05-2)
- 3-Amino-3-(5-(2,4-dichlorophenyl)furan-2-yl)propanoic acid (CAS 773125-55-6)
Recommended Standards
- 4-Iodo-1-(phenylmethoxy)-1H-pyrazole (CAS 229171-07-7)
- 5-Bromo-2-(2,4-difluorophenoxy)aniline (CAS 946786-95-4)
- 4-(2,6-Dichlorobenzamido)-1H-pyrazole-3-carboxylic acid (CAS 825619-04-3)
- 4-(1,1-Difluoroethyl)aniline (CAS 1379282-27-5)
- 2-Hydroxyethyl 2-chloroacetate (CAS 35280-53-6)
- 5-Bromo-6-chloro-pyrazin-2-amine (CAS 173253-42-4)
- Lubiprostone impurity 8 (CAS 136790-79-9)
- 4-(2-phenylethyl)-5-sulfanyl-8-thia-4,6-diazatricyclo[7.4.0.0²,⁷]trideca-1(9),2(7),5-trien-3-one (CAS 351007-36-8)
- N-Cyclopentyl-amino-acetic acid ethyl ester hydrochloride (CAS 84126-69-2)
- Semaglutide impurity 257 (CAS CATO-C4X-2226257)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com