2-CYCLOPENTYLIDENECYCLOPENTANONE
- CAS No.
- 825-25-2
- Chemical Name:
- 2-CYCLOPENTYLIDENECYCLOPENTANONE
- Synonyms
- Loxoprofen Impurity 61;Bicyclopentyliden-2-one;BICYCLOPENTYLIDENE-2-ONE;Δ1,1'-Bicyclopentane-2-one;Δ1,1'-Bi[cyclopentane]-2-one;2-CYCLOPENTYLIDENECYCLOPENTANONE;1,1'-Bi(cyclopentylidene)]-2-one;cyclopentylidenecyclopentan-2-one;Cyclopentanone,2-cyclopentylidene-;2-CYCLOPENTYLIDENE-1-CYCLOPENTANONE
- CBNumber:
- CB7476912
- Molecular Formula:
- C10H14O
- Molecular Weight:
- 150.22
- MDL Number:
- MFCD00044678
- MOL File:
- 825-25-2.mol
- MSDS File:
- SDS
| Product description | Number | Pack Size | Price |
| BICYCLOPENTYLIDENE-2-ONE AldrichCPR | R238295 | 1 unit | $197 |
| BICYCLOPENTYLIDENE-2-ONE Aldrich | R238295 | 25mg | $179 |
| Bicyclopentylidene-2-one | B412510 | 100mg | $115 |
| 2-Cyclopentylidenecyclopentanone | 2113BA | 500mg | $474 |
| 2-CYCLOPENTYLIDENECYCLOPENTANONE 95.00% | CHM0008653 | 250MG | $727.65 |
| Melting point | 74-75 °C |
|---|---|
| Boiling point | 231.78°C (rough estimate) |
| Density | 1 g/cm3 |
| refractive index | 1.5215 (estimate) |
| Flash point | 104°C |
| storage temp. | 2-8°C, protect from light |
| Appearance | Colorless to light yellow Liquid |
| InChI | InChI=1S/C10H14O/c11-10-7-3-6-9(10)8-4-1-2-5-8/h1-7H2 |
| InChIKey | NYSYNXRPXJZYFY-UHFFFAOYSA-N |
| SMILES | C1(=O)CCC/C/1=C1\CCCC\1 |
| FDA UNII | 7ALH95T3QJ |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H315 |
| Precautionary statements | P264-P280-P302+P352-P321-P332+P313-P362 |
2-CYCLOPENTYLIDENECYCLOPENTANONE price More Price(7)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | R238295 | BICYCLOPENTYLIDENE-2-ONE AldrichCPR | 825-25-2 | 1 unit | $197 | 2026-04-30 | Buy |
| Sigma-Aldrich | R238295 | BICYCLOPENTYLIDENE-2-ONE Aldrich | 825-25-2 | 25mg | $179 | 2024-03-01 | Buy |
| TRC | B412510 | Bicyclopentylidene-2-one | 825-25-2 | 100mg | $115 | 2021-12-16 | Buy |
| AK Scientific | 2113BA | 2-Cyclopentylidenecyclopentanone | 825-25-2 | 500mg | $474 | 2021-12-16 | Buy |
| American Custom Chemicals Corporation | CHM0008653 | 2-CYCLOPENTYLIDENECYCLOPENTANONE 95.00% | 825-25-2 | 250MG | $727.65 | 2021-12-16 | Buy |
2-CYCLOPENTYLIDENECYCLOPENTANONE Chemical Properties,Uses,Production
Uses
Bicyclopentylidene-2-one is derived from Cyclopentanone (C988395), which is a chemical compound used in the synthesis of various simple and complex organic compounds. Also, it is used in the synthesis of peptidase IV inhibitors for the treatment of type 2 diabetes.
Synthesis Reference(s)
The Journal of Organic Chemistry, 39, p. 1028, 1974 DOI: 10.1021/jo00922a002
Synthesis
The synthesis of 2-cyclopentylidenecyclopentanone is a classic example of a self-condensation reaction, specifically an aldol condensation followed by dehydration. Under basic or acidic conditions, one molecule of cyclopentanone (C₅H₈O) is converted into its enolate, which nucleophilically attacks the carbonyl group of a second cyclopentanone molecule. The resulting β-hydroxy ketone intermediate undergoes dehydration to yield the α,β-unsaturated ketone product. Industrially, such transformations are often conducted under heterogeneous catalysis using solid acid–base bifunctional catalysts (e.g., Mg–Al hydrotalcites or mixed metal oxides) to improve selectivity and enable continuous-flow operation. The product is of interest as a model intermediate for high-density fuel candidates and has been explored in fragrance chemistry for its woody, amber-like odor.
2-CYCLOPENTYLIDENECYCLOPENTANONE Preparation Products And Raw materials
Raw materials
Preparation Products
2-CYCLOPENTYLIDENECYCLOPENTANONE Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Guangzhou Tosun Pharmaceutical Ltd | +86-020-61855200-902 +8618124244216 | info@upharm.cn | China | 897 | 58 |
| ANHUI WITOP BIOTECH CO., LTD | +8615255079626 | eric@witopchemical.com | China | 23541 | 58 |
| Hu Bei Jiutian Bio-medical Technology CO.,Ltd | 027-88013699 17354350817 | Ryan@jiutian-bio.com | China | 5945 | 58 |
| Shenzhen Excellent Biomedical Technology Co.,Ltd. | +86-0755-26050679 15915472436 | sale@ex-biotech.cn | China | 1023 | 58 |
| Shanghai Acmec Biochemical Technology Co., Ltd. | +86-18621343501; +undefined18621343501 | product@acmec-e.com | China | 33324 | 58 |
| ShenZhen H&D Pharmaceutical Technology Co., LTD | +8618627948422 | sale@hdimpurity.com | China | 3681 | 58 |
| SHANGHAI KEAN TECHNOLOGY CO., LTD. | +8613817748580 | cooperation@kean-chem.com | China | 40066 | 58 |
| XIAMEN AMITY INDUSTRY AND TRADE CO., LTD. | +8618950047208 | ellena@amitychem.com | China | 43416 | 58 |
| QUALITY CONTROL SOLUTIONS LTD. | +86-0755-66853366 +86-13670046396 | export03@qcsrm.com | China | 24342 | 58 |
| Shanghai Macklin Biochemical Co.,Ltd. | 50706066 15221275939 | shenlinxing@macklin.cn | China | 14850 | 58 |
View Lastest Price from 2-CYCLOPENTYLIDENECYCLOPENTANONE manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-03-12 | Loxoprofen Impurity 61 | US $0.00-0.00 / mg | 10mg | 0.98 | 10g | ShenZhen H&D Pharmaceutical Technology Co., LTD | |
 |
2025-12-19 | Loxoprofen Impurity 61 | US $0.00-0.00 / mg | 5mg | 95%+ | 1000mg | Guangzhou Tosun Pharmaceutical Ltd |
-
- Loxoprofen Impurity 61
- US $0.00-0.00 / mg
- 0.98
- ShenZhen H&D Pharmaceutical Technology Co., LTD
-
- Loxoprofen Impurity 61
- US $0.00-0.00 / mg
- 95%+
- Guangzhou Tosun Pharmaceutical Ltd
