2-(4-Chloro-2-nitrophenyl)ethanol CAS 16764-17-3
| CAS No. | 16764-17-3 |
| Molecular Formula | C8H8ClNO3 |
| Molecular Weight | 201.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
2-(4-Chloro-2-nitrophenyl)ethanol (CAS 16764-17-3), molecular formula C8H8ClNO3 and molecular weight 201.61 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-(4-Chloro-2-nitrophenyl)ethanol (C8H8ClNO3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 201.61 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C8H8ClNO3 |
| Molecular Weight | 201.61 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
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- 1-Chloro-4-methoxy-2-methyl-5-nitrobenzene (CAS 101080-03-9)
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Recommended Standards
- 6-Chloro-N,4-dimethyl-3-nitropyridin-2-amine (CAS 1639116-69-0)
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- 2-Chloro-4-ethoxynicotinic acid (CAS 1628845-26-0)
- 3-Chloro-2-ethoxypyridine-4-carboxylic acid (CAS 1696892-30-4)
- 2-Methoxy-5-thenoylpyridine (CAS 898786-14-6)
- 4-(2,4-Dimethylphenyl)-5-(4-(piperidin-1-ylsulfonyl)phenyl)-4H-1,2,4-triazole-3-thiol (CAS 917750-00-6)
- 2-(2-Methylthiazol-4-yl)acetaldehyde (CAS 956822-09-6)
- H-α-cyclopropyl-Ala-OH (CAS 1130070-45-9)
- 2-Bromo-6-chloro-3-methoxyphenylboronic acid pinacol ester (CAS 2121513-36-6)
- 3-[5-(2-Thienyl)-2-furyl]propanoic Acid (CAS 24090-38-8)
- 3,5-Difluorophenylhydrazine Hydrochloride (CAS 502496-27-7)
- (3-Methyl-1h-pyrazol-4-yl)methanamine (CAS 1007538-66-0)
- Methyl 2-[hydroxy(4-methoxyphenyl)methyl]acrylate (CAS 115240-92-1)
- Semaglutide impurity 85 (CAS CATO-C4X-222685)
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