2-(7-Methoxybenzo[d]isoxazol-3-yl)acetic acid CAS 33026-03-8
| CAS No. | 33026-03-8 |
| Molecular Formula | C10H9NO4 |
| Molecular Weight | 207.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2-(7-Methoxybenzo[d]isoxazol-3-yl)acetic acid (CAS 33026-03-8), a certified reference material (molecular formula C10H9NO4, MW 207.18 g/mol) for analytical method development and quality control.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 2-(7-Methoxybenzo[d]isoxazol-3-yl)acetic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 207.18 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures 2-(7-Methoxybenzo[d]isoxazol-3-yl)acetic acid 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 | C10H9NO4 |
| Molecular Weight | 207.18 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 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.) | 1966 |
| Nitrogen Atoms | 1 |
Related Methoxybenzo Standards
- Methyl 6-methoxybenzo[d]isoxazole-3-carboxylate (CAS 1123169-13-0)
- 2-(6-Methoxybenzo[d]oxazol-2-yl)acetic acid (CAS 1803745-99-4)
- Methyl 6-methoxybenzo[d]oxazole-2-carboxylate (CAS 1803837-71-9)
- 2-(6-Methoxybenzo[d]isoxazol-3-yl)acetic acid (CAS 34200-00-5)
- n-Methoxybenzo[b]thiophene-3-carboxamide (CAS 1031188-04-1)
- 1-(6-Methoxybenzo[d]thiazol-2-yl)ethanone (CAS 65840-58-6)
- (6-Methoxybenzo[b]thiophen-2-yl)boronic acid (CAS 182133-35-3)
- 1-(6-Methoxybenzo[d][1,3]dioxol-5-yl)propan-2-one (CAS 952016-87-4)
Recommended Standards
- 2-(Allyloxy)-5-nitrobenzaldehyde (CAS 96601-09-1)
- 2-(5-Methoxy-1,2-benzoxazol-3-yl)acetic acid (CAS 34172-98-0)
- 2,5-Dioxo-5,6,7,8-tetrahydro-2H-chromene-3-carboxamide (CAS 85831-03-4)
- 2-(5-Hydroxy-3-oxoisoindolin-1-yl)acetic acid (CAS 94512-05-7)
- 1-N,1-N,1-trimethylcyclohexane-1,4-diamine (CAS 2059971-64-9)
- Methyl 3-ethyl-2-oxoimidazolidine-1-carboxylate (CAS 297143-83-0)
- 145742-43-4 2-(2,2,2-Trifluoroethoxy)benzaldehyde 4425AD C9H7F3O2 (CAS 145742-43-4)
- Fulvestrant impurity 40 (CAS CATO-C4X-191740)
- 7-(4-Fluorophenyl)-4,7-dioxoheptanoic acid (CAS 1566-06-9)
- 4-((3-Ethoxy-4-hydroxybenzylidene)amino)-3-(m-tolyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 478256-09-6)
- 6-Chloro-2-thioxo-1,2-dihydroquinoline-3-carbaldehyde (CAS 887922-70-5)
- 3-(1-Hydroxyethyl)-5-methoxy-1,2-dimethyl-1H-indole-4,7-dione (CAS 360053-70-9)
- 4-(4-(tert-Butoxycarbonyl)piperazin-1-yl)-4-oxobutanoic acid (CAS 288851-44-5)
- Peptide Impurity 40 (CAS CATO-CPTD788840)
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 18665070610 / Nicole.chen@cato-chem.com