3-Methoxyphenyl Isocyanate CAS 18908-07-1
| CAS No. | 18908-07-1 |
| Molecular Formula | C8H7NO2 |
| Molecular Weight | 149.15 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.
3-Methoxyphenyl Isocyanate (CAS 18908-07-1) is a high-purity analytical reference standard with the molecular formula C8H7NO2 and a molecular weight of 149.15 g/mol.
Based on its molecular formula C8H7NO2, 3-Methoxyphenyl Isocyanate 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 149.15 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).
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 | C8H7NO2 |
| Molecular Weight | 149.15 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 1 |
Related Methoxyphenyl Standards
- 3-Methoxyphenyl Cyanate (CAS 1126-64-3)
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- N-[(2-methoxyphenyl)methylene]-N-methylamine (CAS 1125-90-2)
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- [(4-methoxyphenyl)amino]carbonitrile (CAS 13519-16-9)
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- (2S)-2-(4-Methoxyphenyl)oxirane (CAS 141433-94-5)
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Recommended Standards
- 7-Methoxy-[1,2,4]triazolo[4,3-a]pyridine (CAS 1890781-90-4)
- 1H-indole-5,7-diol (CAS 191331-69-8)
- 7-Methyl-7H-purin-2-amine (CAS 188799-53-3)
- 6-(Prop-2-yn-1-ylamino)pyrimidin-2(1H)-one (CAS 193275-31-9)
- [2-(Difluoromethoxy)-5-(trifluoromethyl)phenyl]boronic acid (CAS 958451-77-9)
- 3-{[4-(5-ethyl-1,2,4-oxadiazol-3-yl)-1,3-dioxo-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidin-2-yl]methyl}benzonitrile (CAS 1775507-77-1)
- Benzyl 1-oxa-5-azaspiro[2.5]octane-5-carboxylate (CAS 1047655-54-8)
- 3,3-dimethyl-1-(methylsulfanyl)butan-2-one (CAS 39199-12-7)
- 3-Methyl-1-(4-nitrophenyl)-1H-pyrazol-5-amine (CAS 16459-47-5)
- (S)-tert-Butyl 2-aminobutanoate (CAS 75190-94-2)
- 1-(7-Bromobenzo[d][1,3]dioxol-4-yl)ethan-1-one (CAS 1892297-27-6)
- 6-(Benzylthio)-9-(2,2-diethoxyethyl)-9H-purin-2-amine (CAS 63071-68-1)
- 1-(2-Methylpropyl)-1h-pyrazolo[3,4-b]pyridine-5-carboxylic acid (CAS 926195-05-3)
- Galanin Message Associated Peptide (1-41) amide trifluoroacetate salt (CAS 132699-74-2)
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