2-Chloro-5-ethylphenol CAS 153812-97-6
| CAS No. | 153812-97-6 |
| Molecular Formula | C8H9ClO |
| Molecular Weight | 156.61 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.
2-Chloro-5-ethylphenol (CAS 153812-97-6), molecular formula C8H9ClO and molecular weight 156.61 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-Chloro-5-ethylphenol (C8H9ClO) contains a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 156.61 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C8H9ClO |
| Molecular Weight | 156.61 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2000 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 2-Chloro-2-phenylethanol (CAS 1004-99-5)
- 6-Chloro-5-ethylpyridin-2-amine (CAS 1004294-54-5)
- 4-Chloro-5-isopropylpyrimidine (CAS 1015846-32-8)
- 6-chloro-1-N-methylbenzene-1,2-diamine (CAS 102074-47-5)
- 2-chloro-3,4-dimethylphenol (CAS 10283-15-5)
- 2-Chloro-4,5,6,7-tetrahydro-1H-benzimidazole (CAS 1049127-52-7)
- 3-Chloro-N,N-dimethylpyridin-2-amine (CAS 1060801-41-3)
- 6-Chloro-N,N-dimethylpyridin-2-amine (CAS 1060801-42-4)
Recommended Standards
- 5-Chloro-3,6-dimethylpyridin-2-amine (CAS 1504581-28-5)
- 2-(3-Chloro-2-methylprop-1-en-1-yl)furan (CAS 1563845-19-1)
- 6-Chloro-3,4-dimethylpyridin-2-amine (CAS 1503408-77-2)
- 4-Chloro-2,3-Dimethylphenol (CAS 1570-76-9)
- 4-methoxycyclohexanamine;hydrochloride (CAS 5460-27-5)
- n-(3-Isopropylphenyl)furan-2-carboxamide (CAS 1181093-16-2)
- 1-(3-(Aminomethyl)piperidin-1-yl)-2-(1H-pyrazol-1-yl)propan-1-one (CAS 1281961-45-2)
- Rhapontigenin (CAS 500-65-2)
- (E)-3-(3,4-Difluorophenyl)acryloyl Chloride (CAS 376608-66-1)
- Ethyl 3-amino-1-bromoisoquinoline-4-carboxylate (CAS 125414-82-6)
- 3-Methylquinoxaline-5,7-diamine (CAS 90558-60-4)
- 1-(3-Bromo-2-fluorophenyl)propan-1-one (CAS 1261680-61-8)
- (E)-3-(2-(difluoromethoxy)-5-nitrophenyl)acrylic acid (CAS 327105-74-8)
- Eosinophilotactic Peptide (CAS 61756-28-3)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com