ChemicalBook >> CAS DataBase List >>1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE
1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE
- CAS No.
- 3205-94-5
- Chemical Name:
- 1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE
- Synonyms
- 5,6-Dihydro-1H-cyclopenta[c]furan-1,3(4H)-dione;Cyclopentane-1,2-dicarboxylic anhydride;NSC 291644;1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE;1H，3H，4H，5H，6H-Cyclopenta[c]furan-1,3-dione;5,6-dihydro-4H-cyclopenta[c]furan-1,3-dione;Cyclopentene-1,2-dicarboxylic acid anhydride;1-Cyclopentene-1,2-dicarboxylic anhydride 96%;5,6-dihydro-4H-cyclopenta[c]furan-1,3-quinone;1H-Cyclopenta[c]furan-1,3(4H)-dione, 5,6-dihydro-
- CBNumber:
- CB2204873
- Molecular Formula:
- C7H6O3
- Molecular Weight:
- 138.12
- MDL Number:
- MFCD00013330
- MOL File:
- 3205-94-5.mol
- MSDS File:
- SDS
Last updated:2026-05-27 23:59:22
| Product description | Number | Pack Size | Price |
| 5,6-Dihydro-1H-cyclopenta[c]furan-1,3(4H)-dione 95.00% | AA003E6J | 50mg | $139 |
| 5,6-Dihydro-1H-cyclopenta[c]furan-1,3(4H)-dione 95.00% | AA003E6J | 100mg | $188 |
| 5,6-Dihydro-1H-cyclopenta[c]furan-1,3(4H)-dione 98% | AA003E6J | 250mg | $248 |
| 5,6-Dihydro-1H-cyclopenta[c]furan-1,3(4H)-dione 95.00% | AA003E6J | 500mg | $372 |
| 5,6-Dihydro-1H-cyclopenta[c]furan-1,3(4H)-dione 95.00% | AA003E6J | 1g | $464 |
| More product size | |||
| Melting point | 42-45 °C (lit.) |
|---|---|
| Boiling point | 133-135 °C/10 mmHg (lit.) |
| Density | 1.2667 (rough estimate) |
| refractive index |
n |
| Flash point | >230 °F |
| storage temp. | under inert gas (nitrogen or Argon) at 2-8°C |
| form | solid |
| Appearance | Colorless to off-white Solid-liquid mixture |
| BRN | 123650 |
| InChI | 1S/C7H6O3/c8-6-4-2-1-3-5(4)7(9)10-6/h1-3H2 |
| InChIKey | GBBPFLCLIBNHQO-UHFFFAOYSA-N |
| SMILES | O=C1OC(=O)C2=C1CCC2 |
| UNSPSC Code | 12162002 |
| NACRES | NA.23 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H315-H319-H335 |
| Precautionary statements | P261-P305+P351+P338 |
| target organs | Respiratory system |
| PPE | dust mask type N95 (US), Eyeshields, Gloves |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26-36 |
| WGK Germany | 3 |
| F | 21 |
| Storage Class | 11 - Combustible Solids |
| Hazard Classifications | Eye Irrit. 2 Skin Irrit. 2 STOT SE 3 |
1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE price More Price(26)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| aablocks | AA003E6J | 5,6-Dihydro-1H-cyclopenta[c]furan-1,3(4H)-dione 95.00% | 3205-94-5 | 50mg | $139 | 2026-05-28 | Buy |
| aablocks | AA003E6J | 5,6-Dihydro-1H-cyclopenta[c]furan-1,3(4H)-dione 95.00% | 3205-94-5 | 100mg | $188 | 2026-05-28 | Buy |
| aablocks | AA003E6J | 5,6-Dihydro-1H-cyclopenta[c]furan-1,3(4H)-dione 98% | 3205-94-5 | 250mg | $248 | 2026-05-28 | Buy |
| aablocks | AA003E6J | 5,6-Dihydro-1H-cyclopenta[c]furan-1,3(4H)-dione 95.00% | 3205-94-5 | 500mg | $372 | 2026-05-28 | Buy |
| aablocks | AA003E6J | 5,6-Dihydro-1H-cyclopenta[c]furan-1,3(4H)-dione 95.00% | 3205-94-5 | 1g | $464 | 2026-05-28 | Buy |
1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE Chemical Properties,Uses,Production
Uses
Valuable Diels-Alder dienophile, for example, in approach to the bicycloundecane system in taxanes.
Purification Methods
If IR has OH peaks, then some hydrolysis to the diacid (m 178o) must have occurred. In this case reflux it with an appropriate volume of Ac2O for 30minutes, evaporate the Ac2O and distil it in vacuo. The distillate solidifies and can be recrystallised from EtOAc/hexane (1:1). The diacid distils without decomposition due to formation of the anhydride. The dimethyl ester has m 120-125o/11mm. [Askain Chem Ber 98 2322 1965, Beilstein 17/11 V 125.]
1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE Preparation Products And Raw materials
Raw materials
Preparation Products
Global( 46)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Chuanghai Biotechnology Co., Ltd | +86-15350571055 | Sibel@chuanghaibio.com | China | 8738 | 58 |
| CONIER CHEM AND PHARMA LIMITED | sales@conier.com | China | 49979 | 58 | |
| Zhengzhou Alfa Chemical Co.,Ltd | +86-18530059196 | sale04@alfachem.cn | China | 9612 | 58 |
| Changzhou Guiding Bio-Tech. Co.,Ltd. | +86-519-519-86686860 +86-18795626222 | ning@guiding-bio.com | China | 299 | 58 |
| Alfa Chemistry | +1-5166625404; | Info@alfa-chemistry.com | United States | 20000 | 58 |
| PT CHEM GROUP LIMITED | +86-85511178; +86-85511178 | peter68@ptchemgroup.com | China | 35425 | 58 |
| Aladdin Scientific | tp@aladdinsci.com | United States | 52923 | 58 | |
| Suzhou ARTK Medchem Co., Ltd. | +86-18168183658 | sales1@artkmedchem.com | China | 39021 | 58 |
| Shaanxi Dideu New Materials Co. Ltd | 18192503167 | 1036@dideu.com | China | 12683 | 58 |
| DAYANG CHEM (HANGZHOU) CO.,LTD | +86-88938639 +86-17705817739 | info@dycnchem.com | China | 53803 | 58 |
View Lastest Price from 1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-06-30 | 1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE
3205-94-5
|
1kg | 98% | 1000kg | Shaanxi Dideu New Materials Co. Ltd | ||
 |
2026-03-20 | 1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE
3205-94-5
|
$10.00 | 1kg | 99% | 100 mt | Hebei Chuanghai Biotechnology Co., Ltd | |
 |
2021-07-02 | 1-Cyclopentene-1,2-dicarboxylic anhydride
3205-94-5
|
$10.00-15.00 | 1KG | 99%+ HPLC | Zhuozhou Wenxi import and Export Co., Ltd |
-
- 1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE
3205-94-5
- $0.00
- 98%
- Shaanxi Dideu New Materials Co. Ltd
-
- 1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE
3205-94-5
- $10.00
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
-
- 1-Cyclopentene-1,2-dicarboxylic anhydride
3205-94-5
- $10.00-15.00
- 99%+ HPLC
- Zhuozhou Wenxi import and Export Co., Ltd
3205-94-5(1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE)Related Search:
1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE
Cyclopentene-1,2-dicarboxylic acid anhydride
4,5,6,6a-Tetrahydro-1H-cyclopenta[c]furan-1,3(3aH)-dione
5,6-dihydro-4H-cyclopenta[c]furan-1,3-dione
5,6-dihydro-4H-cyclopenta[c]furan-1,3-quinone
NSC 291644
1-Cyclopentene-1,2-dicarboxylic anhydride 96%
1H，3H，4H，5H，6H-Cyclopenta[c]furan-1,3-dione
1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE ISO 9001：2015 REACH
1H-Cyclopenta[c]furan-1,3(4H)-dione, 5,6-dihydro-
Cyclopentane-1,2-dicarboxylic anhydride
5,6-Dihydro-1H-cyclopenta[c]furan-1,3(4H)-dione
3205-94-5
Carboxylic Acid Anhydrides
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Carbonyl Compounds
Carboxylic Acid Anhydrides
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Building Blocks
Carbonyl Compounds
Carboxylic Acid Anhydrides
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