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5H-Cyclopenta[c]pyridin-5-one,6,7-dihydro-(9CI)

CAS No.
350847-80-2
Chemical Name:
5H-Cyclopenta[c]pyridin-5-one,6,7-dihydro-(9CI)
Synonyms
6,7-dihydro-5H-cyclopenta[c]pyridin-5-one;6,7-dihydrocyclopenta[c]pyridin-5-one;6,7-Dihydro-5H-[2]pyrindin-5-one;5H,6H,7H-cyclopenta[c]pyridin-5-one;6,7-dihydro-1H-cyclopenta[c]pyridin-5-one;6,7-Dihydro-5H-cyclopental[c]pyridin-5-one;6,7-Dihydro-5H-cyclopental[c]pyridine-5-one;5H-Cyclopenta[c]pyridin-5-one, 6,7-dihydro-;5H-Cyclopenta[c]pyridin-5-one,6,7-dihydro-(9CI)
CBNumber:
CB61271740
Molecular Formula:
C8H7NO
Molecular Weight:
133.15
MDL Number:
MFCD08694695
MOL File:
350847-80-2.mol
MSDS File:
SDS
Last updated:2026-05-28 01:29:43
Product description Number Pack Size Price
5H,6H,7H-cyclopenta[c]pyridin-5-one 97.0% C23220 100mg $80
5H,6H,7H-cyclopenta[c]pyridin-5-one 97.0% C23220 250mg $150
5H,6H,7H-cyclopenta[c]pyridin-5-one 97.0% C23220 1g $450
5H,6H,7H-cyclopenta[c]pyridin-5-one 97.0% C23220 5g $1530
5H,6H,7H-cyclopenta[c]pyridin-5-one 97.0% C23220 10g $3060

5H-Cyclopenta[c]pyridin-5-one,6,7-dihydro-(9CI) Properties

Boiling point 267.4±9.0 °C(Predicted)
Density 1.230±0.06 g/cm3(Predicted)
storage temp. Storage temp. 2-8°C
pka 3.56±0.20(Predicted)
Appearance Brown to black Solid

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P261-P305+P351+P338
HazardClass  IRRITANT

5H-Cyclopenta[c]pyridin-5-one,6,7-dihydro-(9CI) price More Price(30)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Synthonix C23220 5H,6H,7H-cyclopenta[c]pyridin-5-one 97.0% 350847-80-2 100mg $80 2026-05-06 Buy
Synthonix C23220 5H,6H,7H-cyclopenta[c]pyridin-5-one 97.0% 350847-80-2 250mg $150 2026-05-06 Buy
Synthonix C23220 5H,6H,7H-cyclopenta[c]pyridin-5-one 97.0% 350847-80-2 1g $450 2026-05-06 Buy
Synthonix C23220 5H,6H,7H-cyclopenta[c]pyridin-5-one 97.0% 350847-80-2 5g $1530 2026-05-06 Buy
Synthonix C23220 5H,6H,7H-cyclopenta[c]pyridin-5-one 97.0% 350847-80-2 10g $3060 2026-05-06 Buy
Product number Packaging Price Buy
C23220 100mg $80 Buy
C23220 250mg $150 Buy
C23220 1g $450 Buy
C23220 5g $1530 Buy
C23220 10g $3060 Buy

5H-Cyclopenta[c]pyridin-5-one,6,7-dihydro-(9CI) Chemical Properties,Uses,Production

Synthesis

3-Pyridinepropanoic acid, 4-(methoxycarbonyl)-, ethyl ester

19608-41-4

5H-Cyclopenta[c]pyridin-5-one,6,7-dihydro-(9CI)

350847-80-2

General procedure for the synthesis of 6,7-dihydro-5H-cyclopentadieno[c]pyridin-5-one from methyl 3-(3-ethoxy-3-oxopropyl)isonicotinate: to a tetrahydrofuran (THF, 5.0 mL) solution of methyl 3-(3-ethoxy-3-oxopropyl)isonicotinate (300 mg, 1.26 mmol) was added potassium 2-methylpropan-2-ol ( 0.28 g, 2.52 mmol). The reaction mixture was stirred at room temperature for 1 hour. Subsequently, the solvent was evaporated to dryness. Concentrated hydrochloric acid (5 mL) was added to the residue and the reaction mixture was stirred at 100 °C for 2 hours. After continuing to stir at 100 °C for 16 h, saturated aqueous sodium bicarbonate (40 mL) and ethyl acetate (EtOAc, 50 mL) were added to the reaction vessel, and the resulting two-phase mixture was transferred to a partition funnel. The organic and aqueous layers were separated and the aqueous phase was extracted with ethyl acetate (2 x 50 mL). The organic phases were combined, washed with saturated saline, dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure. The resulting oil was purified by fast column chromatography using isocratic elution conditions of ethyl acetate (35%) and hexane (65%) to afford 6,7-dihydro-5H-cyclopenta[c]pyridin-5-one (0.03 g, 0.23 mmol) as a gray oil.

References

[1] Patent: WO2018/26371, 2018, A1. Location in patent: Paragraph 0132; 0134; 0283

5H-Cyclopenta[c]pyridin-5-one,6,7-dihydro-(9CI) Preparation Products And Raw materials

5H-Cyclopenta[c]pyridin-5-one,6,7-dihydro-(9CI) Suppliers

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5H-Cyclopenta[c]pyridin-5-one,6,7-dihydro-(9CI) Spectrum

5H,6H,7H-cyclopenta[c]pyridin-5-one 5H-Cyclopenta[c]pyridin-5-one, 6,7-dihydro- 6,7-Dihydro-5H-[2]pyrindin-5-one 6,7-dihydro-5H-cyclopenta[c]pyridin-5-one 6,7-Dihydro-5H-cyclopental[c]pyridine-5-one 5H-Cyclopenta[c]pyridin-5-one,6,7-dihydro-(9CI) 6,7-Dihydro-5H-cyclopental[c]pyridin-5-one 6,7-dihydro-1H-cyclopenta[c]pyridin-5-one 6,7-dihydrocyclopenta[c]pyridin-5-one 350847-80-2 PYRIDINE