3-Isocyanato-2-methylfuran CAS 921938-65-0
| CAS No. | 921938-65-0 |
| Molecular Formula | C6H5NO2 |
| Molecular Weight | 123.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Isocyanato-2-methylfuran (CAS 921938-65-0), molecular formula C6H5NO2 and molecular weight 123.11 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C6H5NO2, 3-Isocyanato-2-methylfuran contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 123.11 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C6H5NO2 |
| Molecular Weight | 123.11 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
Related Isocyanato Standards
- 4-Isocyanato-1-methyl-1H-pyrazole (CAS 1174064-57-3)
- 2-Isocyanato-1-methyl-1H-imidazole (CAS 1260663-41-9)
- 2-Isocyanato-3-methylfuran (CAS 921938-67-2)
- 5-Isocyanato-1-methyl-1H-imidazole (CAS 499770-99-9)
- 3-Isocyanato-5-methylisoxazole (CAS 55809-54-6)
- 2-Isocyanato-4-methylpentane (CAS 42065-79-2)
- 1-Isocyanato-2-(methylsulfanyl)ethane (CAS 37441-16-0)
- 2-Isocyanato-propionic acid methyl ester (CAS 30293-83-5)
Recommended Standards
- 3-Amino-5-methylisoxazole-4-carbonitrile (CAS 41808-52-0)
- 4-(Hydroxyimino)cyclohexa-2,5-dien-1-one (CAS 637-62-7)
- 2-Pyrimidinecarboxamide (CAS 4425-55-2)
- 4,5-Dihydro-6H-cyclopenta[d]oxazol-6-one (CAS 2098584-50-8)
- Ethyl 3-ethyl-3,5-dimethylpyrazolidine-1-carboxylate (CAS 413624-83-6)
- (5-Chloro-2-hydroxy-4-methylphenyl)(2-chlorophenyl)methanone (CAS 263554-77-4)
- 1-(6-(Indolin-1-yl)-2-methylpyridin-3-yl)-N-methylmethanamine (CAS 1355194-91-0)
- 3-(4-Methoxy-3-methylbenzyl)piperidine (CAS 955288-19-4)
- 2,3-Dichloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (CAS 1612184-06-1)
- 2-(2,4-Dichlorophenyl)-5,6,7,8-tetrahydrobenzo[d]imidazo[2,1-b]thiazole (CAS 478029-45-7)
- 1-Chloro-2-(cyclopentyloxy)-3-fluoro-5-nitrobenzene (CAS 1881332-35-9)
- Sulindac (CAS 38194-50-2)
- 3-(Difluoromethyl)-6-(trifluoromethyl)pyridine-2,4-diamine (CAS 1804696-70-5)
- Semaglutide impurity 97 (CAS CATO-C4X-222697)
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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