2-Isocyanato-3-methylfuran CAS 921938-67-2
| CAS No. | 921938-67-2 |
| Molecular Formula | C6H5NO2 |
| Molecular Weight | 123.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 123.11 g/mol gives 2-Isocyanato-3-methylfuran distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-Isocyanato-3-methylfuran (CAS 921938-67-2), molecular formula C6H5NO2 and molecular weight 123.11 g/mol, is a CATO reference standard with documented purity and traceability.
2-Isocyanato-3-methylfuran (C6H5NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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)
- 3-Isocyanato-2-methylfuran (CAS 921938-65-0)
- 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
- 2-Hydroxynicotinaldehyde (CAS 32768-36-8)
- 2-Pyrimidinecarboxamide (CAS 4425-55-2)
- 2H-Oxazolo[2,3-c][1,2,4]triazine (CAS 384851-48-3)
- 3-Amino-5-methylisoxazole-4-carbonitrile (CAS 41808-52-0)
- N-(1-((4-Fluorophenyl)sulfonyl)-1,2,3,4-tetrahydroquinolin-6-yl)butyramide (CAS 941971-60-4)
- Ethyl 3-cyanoimidazo[1,2-a]pyridine-8-carboxylate (CAS 1823631-14-6)
- Ethyl nervonate (CAS 137888-64-3)
- Z-Phe-(4-F)-OH (CAS 17543-58-7)
- 1-Isobutyl-1H-benzimidazole-2-sulfonic acid (CAS 381705-51-7)
- Methyl (3R)-3-hydroxynonanoate (CAS 28941-56-2)
- 2-Bromo-5-(1-ethylpyrrolidin-2-yl)pyridine (CAS 1352511-51-3)
- 1-Mesityl-2-phenylethane-1,2-dione (CAS 25056-07-9)
- 2-(2-Chloropyrimidin-4-yl)-2-methylpropan-1-ol (CAS 2357143-22-5)
- (Ser(PO?H?)3??·???)-Tau Peptide (379-408) trifluoroacetate salt (CAS 2022956-60-9)
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