5-Chloro-2-(pentyloxy)benzenethiol CAS 1443340-09-7
| CAS No. | 1443340-09-7 |
| Molecular Formula | C11H15ClOS |
| Molecular Weight | 230.75 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.
5-Chloro-2-(pentyloxy)benzenethiol (CAS 1443340-09-7), molecular formula C11H15ClOS and molecular weight 230.75 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-Chloro-2-(pentyloxy)benzenethiol (C11H15ClOS) contains sulfur-containing functionality, 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 230.75 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 | C11H15ClOS |
| Molecular Weight | 230.75 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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.) | 1992 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 3-Chloro-4-(pentyloxy)benzenethiol (CAS 1378873-87-0)
- 3-Chloro-4-(isopentyloxy)benzenethiol (CAS 1379362-75-0)
- 5-Chloro-5-methyl-5H-dibenzo[b,d]silole (CAS 18090-00-1)
- 1-[(2-chloro-1,3-thiazol-5-yl)methyl]azepane (CAS 885950-03-8)
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Recommended Standards
- (2-Butoxy-5-chlorophenyl)(methyl)sulfane (CAS 1443305-57-4)
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- (4-Butoxy-3-chlorophenyl)(methyl)sulfane (CAS 1379343-02-8)
- N-(2-fluorophenyl)-3,4-dimethoxybenzamide (CAS 312734-34-2)
- tert-Butyl 4-(2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)ethyl)piperazine-1-carboxylate (CAS 1310404-00-2)
- 4-(2-Bromo-5-fluorophenyl)butanal (CAS 1340422-52-7)
- 3-(4-Hydroxypiperidin-1-yl)propanenitrile (CAS 4608-72-4)
- 4-(tert-Butyl)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (CAS 2095797-21-8)
- 2-((2-Fluorobenzyl)oxy)-3-methylbenzaldehyde (CAS 1427015-06-2)
- 1-(Adamantan-1-yl)butane-1,3-dione (CAS 82094-52-8)
- 4-(2-Cyano-3-fluorophenoxy)benzoic acid (CAS 944663-07-4)
- 2-Ethoxy-6-methoxyquinoline (CAS 72543-50-1)
- Endo-Gly29-Tirzepatide (CAS CATO-CPTD788685)
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