(5-(Furan-2-yl)isoxazol-3-yl)methyl thiophene-2-carboxylate CAS 1105202-25-2
| CAS No. | 1105202-25-2 |
| Molecular Formula | C13H9NO4S |
| Molecular Weight | 275.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
(5-(Furan-2-yl)isoxazol-3-yl)methyl thiophene-2-carboxylate (CAS 1105202-25-2), molecular formula C13H9NO4S and molecular weight 275.28 g/mol, is a CATO reference standard with documented purity and traceability.
(5-(Furan-2-yl)isoxazol-3-yl)methyl thiophene-2-carboxylate (C13H9NO4S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C13H9NO4S |
| Molecular Weight | 275.28 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Furan Standards
- N-(5-(Furan-2-yl)-1,3,4-oxadiazol-2-yl)-2-(thiophen-2-yl)acetamide (CAS 921816-00-4)
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- 2-(Furan-2-carboxamido)-3-(4-hydroxyphenyl)propanoic acid (CAS 1396966-28-1)
- Furan-2-yl(7-nitro-2,3-dihydrobenzo[b][1,4]dioxin-6-yl)methanone (CAS 886493-84-1)
- N-(Furan-3-ylmethyl)-N-(2-(thiophen-2-yl)ethyl)cyclopropanecarboxamide (CAS 1428350-72-4)
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Recommended Standards
- 2-(2-Methoxyethoxy)-5-sulfamoylbenzoic acid (CAS 1094294-07-1)
- (E)-benzo[d][1,3]dioxole-5-carbaldehyde O-thiophene-2-carbonyl oxime (CAS 111172-14-6)
- Ethyl 2-(((5-methyl-3-nitro-1h-pyrazol-1-yl)methyl)sulfinyl)acetate (CAS 1020724-52-0)
- 6-Amino-2-oxo-5-(phenylsulfonyl)-1,2-dihydropyridine-3-carbonitrile (CAS 119672-36-5)
- 2-(4-Fluoro-3-methyl-5-(trifluoromethyl)phenyl)acetonitrile (CAS 1373920-75-2)
- 2-(4-Chloro-2-Fluorophenyl)Hexahydro-3-Thioxo-1H-(1,2,4)Triazolo(1,2-a)Pyridazin-1-One (CAS 68017-44-7)
- Ethyl 3-(3-fluorophenyl)-3-methyloxirane-2-carboxylate (CAS 1486119-47-4)
- Methyl 7-amino-1H-indole-2-carboxylate (CAS 167027-29-4)
- 3-Ethoxy-4-methylisoxazole-5-carboxylic acid (CAS 166180-70-7)
- N-(Amino-PEG5)-N-bis(PEG4-acid) (CAS 2093152-86-2)
- (R)-3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(4-cyanophenyl)propanoic acid (CAS 517905-92-9)
- Bromfenac Impurity 71 (CAS CATO-C4X-200271)
- (5-Hydroxy-1-methyl-1H-pyrazol-4-yl)-(3-methanesulfonyl-2,5-dimethyl-4-oxazol-2-yl-phenyl)-methanone (CAS 1231579-84-2)
- Palmitoyl Tripeptide-1 TFA salt (CAS 2803375-47-3)
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