2-Isocyanatobenzofuran CAS 179873-62-2
| CAS No. | 179873-62-2 |
| Molecular Formula | C9H5NO2 |
| Molecular Weight | 159.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Isocyanatobenzofuran (CAS 179873-62-2), molecular formula C9H5NO2 and molecular weight 159.14 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H5NO2, 2-Isocyanatobenzofuran 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 159.14 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 | C9H5NO2 |
| Molecular Weight | 159.14 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2008 |
| Nitrogen Atoms | 1 |
Recommended Standards
- 3-methoxypyridine-2,6-dicarbonitrile (CAS 1795466-51-1)
- Methyl (2S,4R)-4-Hydroxy-5-oxopyrrolidine-2-carboxylate (CAS 180321-18-0)
- 5-(Difluoromethyl)-2-methylpyrimidin-4-amine (CAS 1785079-57-3)
- 2-Aminobenzo[d]oxazole-7-carbonitrile (CAS 1803861-72-4)
- 4-Isopropyl-2-methyl-3-(methylthio)-2,3-dihydro-1H-pyrrolo[3,4-c]pyridine-1,6(5H)-dione (CAS 1269532-14-0)
- 2-(N-Methylpalmitamido)acetic acid (CAS 2421-33-2)
- 3-Chlorofuran-2-carbonyl Chloride (CAS 66144-46-5)
- 1-(3-Methoxyphenyl)-5-methyl-N-(thiazol-2-yl)-1H-1,2,3-triazole-4-carboxamide (CAS 923202-10-2)
- 6-Bromo-2H-benzo[b][1,4]thiazin-3(4H)-one (CAS 98434-22-1)
- N-(3-Nitrophenyl)imidodicarbonimidic diamide (CAS 10441-20-0)
- N-Benzylidene-3-(4,6-dichloropyrimidin-2-yl)aniline (CAS 89508-70-3)
- 1'-(Thiazol-2-yl)spiro[indoline-3,4'-piperidin]-2-one (CAS 1360421-91-5)
- 2,3-Dimethoxynaphthalene-1,4-dicarbaldehyde (CAS 868623-13-6)
- Semaglutide Impurity 164 (CAS CATO-C4X-2226164)
Why CATO?
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