7-chloro-3-methylthieno[3,2-b]pyridine CAS 953045-91-5
| CAS No. | 953045-91-5 |
| Molecular Formula | C8H14ClNS |
| Molecular Weight | 191.72 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 7-chloro-3-methylthieno[3,2-b]pyridine is closely related to a nitrile group, sulfur-containing functionality, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
7-chloro-3-methylthieno[3,2-b]pyridine (CAS 953045-91-5) is a high-purity analytical reference standard with the molecular formula C8H14ClNS and a molecular weight of 191.72 g/mol.
7-chloro-3-methylthieno[3,2-b]pyridine (C8H14ClNS) contains a nitrile group, sulfur-containing functionality, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
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 | C8H14ClNS |
| Molecular Weight | 191.72 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related chloro Standards
- 7-chloro-2-methylthieno[3,2-b]pyridine (CAS 638219-98-4)
- 7-chloro-3-methylthieno[2,3-c]pyridine (CAS 209287-21-8)
- 4-Chloro-3-((trimethylsilyl)oxy)butanenitrile (CAS 81091-27-2)
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- (6-(Methoxymethyl)pyridin-2-yl)methanol (CAS 136133-18-1)
- 8-(Trifluoromethyl)quinolin-2-amine (CAS 1092304-80-7)
- 3-Chloro-5-(trifluoromethyl)-N-(2-(5-(trifluoromethyl)-1H-benzo[d]imidazol-1-yl)ethyl)pyridin-2-amine (CAS 478262-26-9)
- N-(2-Methylquinolin-4-yl)cyclohexanecarboximidamide (CAS 71079-18-0)
- 2-(Quinolin-5-yl)ethan-1-amine (CAS 98421-28-4)
- Myristoyl Pentapeptide-4 (CAS 1392416-25-9)
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