4-(1,3-Benzoxazol-2-yl)butanoic acid CAS 288569-91-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 288569-91-5 |
| Molecular Formula | C11H11NO3 |
| Molecular Weight | 205.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(1,3-Benzoxazol-2-yl)butanoic acid (CAS 288569-91-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C11H11NO3. Molecular weight: 205.21 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C11H11NO3 |
| Molecular Weight | 205.21 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
Related Benzoxazol Standards
- 2-(2-Ethyl-1,3-benzoxazol-5-yl)acetic acid (CAS 866038-38-2)
- 2-(1,3-Benzoxazol-2-yl)cyclopropanecarboxylic acid (CAS 1142214-36-5)
- (1,3-Benzoxazol-2-ylthio)acetic acid (CAS 58089-32-0)
- 2-(1,3-Benzoxazol-2-yl)aniline (CAS 29483-74-7)
- 3-(1,3-benzoxazol-2-yl)propanoic acid (CAS 78757-00-3)
- N-1,3-Benzoxazol-2-ylsulfuric diamide (CAS 136810-65-6)
- 1-(1,3-Benzoxazol-2-yl)-3-methyl-1H-pyrazol-5-amine (CAS 926190-29-6)
- 2-(1,3-benzoxazol-2-ylsulfanyl)ethan-1-ol (CAS 126828-31-7)
Recommended Standards
- 4-([1,2,4]Triazolo[4,3-a]pyridin-3-yl)butanoic acid (CAS 951933-00-9)
- 4-(1H-Benzo[d][1,2,3]triazol-1-yl)butanoic acid (CAS 654-19-3)
- 4-((5-Methyloxazol-4-yl)methyl)benzene-1,2-diol (CAS 501006-25-3)
- (E)-3-(4-Bromo-3-chlorophenyl)acrylic acid (CAS 1022081-97-5)
- 1-Allyl-N-(3-chloro-4-methylphenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide (CAS 339027-40-6)
- N-(Morpholin-2-ylmethyl)ethanamine (CAS 122894-64-8)
- N-benzyl-4-fluoro-N-(4-methoxyphenyl)benzamide (CAS 338400-62-7)
- tert-Butyl(((3R,4R)-4-methylpyrrolidin-3-yl)methyl)carbamic acid (CAS 351369-20-5)
- (R)-2,2-dimethyl-1-(3,4,5-trifluorophenyl)propan-1-amine (CAS 1390716-87-6)
- Semaglutide impurity 86 (CAS CATO-C4X-222686)
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