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Atomfair 4-methyl-1H,2H,5H,6H,7H-cyclopenta[b]pyridin-2-one C9H11NO CAS 20594-30-3

4-methyl-1H,2H,5H,6H,7H-cyclopenta[b]pyridin-2-one (CAS No. 20594-30-3) is a high-purity heterocyclic organic compound with the molecular formula C9H11NO. This cyclopenta[b]pyridine derivative is a valuable intermediate for pharmaceutical and agrochemical research, offering exceptional versatility in synthetic applications. Available in ≥98% purity (HPLC), this compound is rigorously tested for quality and consistency, ensuring optimal performance in your experiments. Suitable for use in medicinal chemistry, catalysis, and material science, it is supplied in sealed, light-resistant packaging to maintain stability. Store under inert conditions at 2-8°C for prolonged shelf life.

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Description

4-methyl-1H,2H,5H,6H,7H-cyclopenta[b]pyridin-2-one (CAS No. 20594-30-3) is a high-purity heterocyclic organic compound with the molecular formula C9H11NO. This cyclopenta[b]pyridine derivative is a valuable intermediate for pharmaceutical and agrochemical research, offering exceptional versatility in synthetic applications. Available in ≥98% purity (HPLC), this compound is rigorously tested for quality and consistency, ensuring optimal performance in your experiments. Suitable for use in medicinal chemistry, catalysis, and material science, it is supplied in sealed, light-resistant packaging to maintain stability. Store under inert conditions at 2-8°C for prolonged shelf life.

Properties

  • CAS Number: 20594-30-3
  • Complexity: 273
  • IUPAC Name: 4-methyl-1,5,6,7-tetrahydrocyclopenta[b]pyridin-2-one
  • InChI: InChI=1S/C9H11NO/c1-6-5-9(11)10-8-4-2-3-7(6)8/h5H,2-4H2,1H3,(H,10,11)
  • InChI Key: HFLWTMZFPBSEFU-UHFFFAOYSA-N
  • Exact Mass: 149.084063974
  • Molecular Formula: C9H11NO
  • Molecular Weight: 149.19
  • SMILES: CC1=CC(=O)NC2=C1CCC2
  • Topological: 29.1
  • Monoisotopic Mass: 149.084063974
  • Synonyms: 4-methyl-1H,2H,5H,6H,7H-cyclopenta[b]pyridin-2-one, 4-methyl-1H,2H,5H,6H,7H-cyclopenta(b)pyridin-2-one, 881-538-0, 20594-30-3, 4-METHYL-6,7-DIHYDRO-5H-CYCLOPENTA[B]PYRIDIN-2-OL, 4-Methyl-1,5,6,7-tetrahydro-2H-cyclopenta[b]-pyridin-2-one, 4-methyl-1,5,6,7-tetrahydrocyclopenta[b]pyridin-2-one, 4-methyl-1,5,6,7-tetrahydro-2h-cyclopenta[b]pyridin-2-one, 4-Methyl-6,7-dihydro-1H-cyclopenta[b]pyridin-2(5H)-one, 2H-Cyclopenta[b]pyridin-2-one, 1,5,6,7-tetrahydro-4-methyl-, MFCD16140309, NSC150956, SCHEMBL9056968, DTXSID60302431, MFCD18255918, AKOS005071843, BE-0711, NSC-150956, SY124564, CS-0035803, EN300-91226, Z57123329

This compound serves as a key building block in the synthesis of bioactive molecules, particularly in the development of kinase inhibitors and CNS-active agents. Researchers utilize it in palladium-catalyzed cross-coupling reactions and as a precursor for fused polycyclic systems. Its structural motif is frequently employed in drug discovery programs targeting inflammatory and neurological disorders.

Safety and Hazards

GHS Hazard Statements

  • H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]
  • H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
  • H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
  • H335 (100%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

  • P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501

Hazard Classes and Categories

  • Acute Tox. 4 (100%)
  • Skin Irrit. 2 (100%)
  • Eye Irrit. 2A (100%)
  • STOT SE 3 (100%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.

Disclaimer

Intended Use & Restrictions

This product is sold exclusively for laboratory research, analytical testing, or non-commercial purposes.

  • Strictly prohibited: Resale, repackaging, or formulation into commercial products.
  • Not approved for human/animal use, diagnostics, or manufacturing (including pharmaceuticals, agrochemicals, or consumer goods).

Patent & Regulatory Compliance

Certain molecules may be protected by active patents or regulatory restrictions.

  • Buyers must independently verify patent status (e.g., via USPTO/EPO/CNIPA) and comply with local laws.
  • Atomfair LLC does not provide legal assurances regarding patent non-infringement or jurisdictional compliance.

Liability Release

By purchasing, the buyer agrees to:

  • Use this product only as permitted by law.
  • Indemnify Atomfair LLC against all claims arising from misuse, patent infringement, or regulatory violations.

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