2-chloro-4-methyl-6,7-dihydro-5H-cyclopenta[b]pyridine CAS 267242-99-9
| CAS No. | 267242-99-9 |
| Molecular Formula | C9H16ClN |
| Molecular Weight | 173.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-chloro-4-methyl-6,7-dihydro-5H-cyclopenta[b]pyridine (CAS 267242-99-9), molecular formula C9H16ClN and molecular weight 173.68 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrile group, chlorine substitution, 2-chloro-4-methyl-6,7-dihydro-5H-cyclopenta[b]pyridine is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 173.68 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 2-chloro-4-methyl-6,7-dihydro-5H-cyclopenta[b]pyridine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H16ClN |
| Molecular Weight | 173.68 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.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related chloro Standards
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- 612-61-3 7-Chloro-4-nitroquinoline 7-Chloroquinoline A26294 (CAS 612-61-3)
- 2-Chloro-5-[(methylsulfanyl)methyl]pyridine (CAS 1021870-94-9)
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Recommended Standards
- 3-Allyl-2-chloro-5-methylpyridine (CAS 1203498-97-8)
- 4-Chloro-2-(methylsulfanyl)aniline (CAS 29690-21-9)
- 611-33-6 8-Chloroquinoline Quinoline, 8-chloro- CCRIS 3982 EINECS 210-265-6 NSC 56815 (CAS 611-33-6)
- 4-Chloro-2-(ethylthio)pyridine (CAS 769163-28-2)
- Methyl 3-hydrazineylbenzoate (CAS 473575-39-2)
- 2-((5,6-Dimethyl-1H-benzo[d]imidazol-2-yl)thio)acetohydrazide (CAS 63503-80-0)
- 4-Chloro-1-(pyridin-4-yl)-1H-pyrazolo[3,4-d]pyrimidine (CAS 650638-07-6)
- 3-Bromo-7,8-dichloroquinoline (CAS 1708013-99-3)
- 6-Bromo-4-chloro-7-methyl-1H-indazole (CAS 2569481-43-0)
- Carba-NAD (CAS 112345-60-5)
- Ciclosporin Impurity 21 (CAS CATO-C4X-199821)
- 2-Chloro-5-cyanopyridine-3-boronic acid (CAS 957060-96-7)
- 4-Bromo-3-methylphenylboronic acid pinaco ester (CAS 2121511-60-0)
- Liraglutide-d8 Tritrifluoroacetate (CAS CATO-C4X-199223)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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