5-Ethyl-2-hydroxybenzonitrile CAS 75668-94-9
| CAS No. | 75668-94-9 |
| Molecular Formula | C9H9NO |
| Molecular Weight | 147.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 5-Ethyl-2-hydroxybenzonitrile (CAS 75668-94-9), a certified reference material (molecular formula C9H9NO, MW 147.17 g/mol) for analytical method development and quality control.
Based on its molecular formula C9H9NO, 5-Ethyl-2-hydroxybenzonitrile contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 147.17 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), 5-Ethyl-2-hydroxybenzonitrile meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C9H9NO |
| Molecular Weight | 147.17 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | 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.) | 1978 |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
- 2-Ethyl-5-hydroxybenzonitrile (CAS 1243287-70-8)
- 2-Ethyl-6-hydroxybenzonitrile (CAS 1243377-83-4)
- 3-Ethyl-5-hydroxybenzonitrile (CAS 1243400-19-2)
- 2-Ethyl-4-hydroxybenzonitrile (CAS 14143-33-0)
- 2-Ethyl-3-hydroxybenzonitrile (CAS 791137-12-7)
- 3-Ethyl-2-hydroxybenzonitrile (CAS 73289-65-3)
- 3-ethyl-4-hydroxybenzonitrile (CAS 4997-55-1)
- 4-Ethyl-2-hydroxybenzonitrile (CAS 862088-20-8)
Recommended Standards
- 5-Amino-3-methylbenzofurane (CAS 851768-32-6)
- 5-Ethynyl-3,4-dimethyl-1H-pyrrole-2-carbaldehyde (CAS 250253-82-8)
- 5-Amino-2-methylbenzofuran (CAS 26210-75-3)
- 5-Methoxy-2-methylbenzonitrile (CAS 22246-19-1)
- (2S,3R)-5-bromo-3-(3,5-dimethoxyphenyl)-2-(4-methoxyphenyl)-2,3-dihydro-1-benzofuran (CAS 1800015-70-6)
- 4-(Isopropylamino)benzaldehyde (CAS 27914-21-2)
- 2-Bromo-6-(difluoromethyl)-4-methoxynicotinonitrile (CAS 1805357-91-8)
- Ethyl 3-iodo-5-methyl-1H-pyrazole-4-carboxylate (CAS 1629095-95-9)
- 4-Ethyl-5-(methoxymethyl)-4h-1,2,4-triazole-3-thiol (CAS 590352-13-9)
- 2-(1-Hydroxycyclobutyl)-2-phenylacetic acid (CAS 5463-97-8)
- Ethyl 1-(1-ethoxyethyl)-3-iodo-1H-pyrazole-4-carboxylate (CAS 1639858-75-5)
- N-(5-Bromo-3-indolyl)-D-alaninamide trifluoroacetate salt (CAS 177966-72-2)
- (R)-2-((4-(4-amino-2-fluorophenoxy)-1-(4-methoxybenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)amino)propan-1-ol (CAS 2412358-35-9)
- 3X Flag Peptide trifluoroacetate salt (CAS 402750-12-3)
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