ChemicalBook > CAS DataBase List > 1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE

1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE

Product Name
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;5,6-dihydro-4H-cyclopenta[c]furan-1,3-dione;1H，3H，4H，5H，6H-Cyclopenta[c]furan-1,3-dione;Cyclopentene-1,2-dicarboxylic acid anhydride;5,6-dihydro-4H-cyclopenta[c]furan-1,3-quinone;1-Cyclopentene-1,2-dicarboxylic anhydride 96%;1H-Cyclopenta[c]furan-1,3(4H)-dione, 5,6-dihydro-
CBNumber
CB2204873
Molecular Formula
C7H6O3
Formula Weight
138.12
MOL File
3205-94-5.mol
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1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE Property

Melting point:
42-45 °C (lit.)
Boiling point:
133-135 °C/10 mmHg (lit.)
Density 
1.2667 (rough estimate)
refractive index 
n20/D 1.4978(lit.)
Flash point:
>230 °F
storage temp. 
under inert gas (nitrogen or Argon) at 2-8°C
BRN 
123650
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36
WGK Germany 
3
F 
21
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Biosynth Carbosynth
Product number
FD138322
Product name
5,6-Dihydro-1H-cyclopenta[c]furan-1,3(4H)-dione
Packaging
50mg
Price
$200
Updated
2021/12/16
Biosynth Carbosynth
Product number
FD138322
Product name
5,6-Dihydro-1H-cyclopenta[c]furan-1,3(4H)-dione
Packaging
100mg
Price
$250
Updated
2021/12/16
Biosynth Carbosynth
Product number
FD138322
Product name
5,6-Dihydro-1H-cyclopenta[c]furan-1,3(4H)-dione
Packaging
250mg
Price
$300
Updated
2021/12/16
AK Scientific
Product number
0617AQ
Product name
1-Cyclopentene-1,2-dicarboxylic anhydride
Packaging
1g
Price
$393
Updated
2021/12/16
Biosynth Carbosynth
Product number
FD138322
Product name
5,6-Dihydro-1H-cyclopenta[c]furan-1,3(4H)-dione
Packaging
500mg
Price
$400
Updated
2021/12/16
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1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE Chemical Properties,Usage,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

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1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE Suppliers

China 33 India 1 South Korea 1 Switzerland 1 United Kingdom 2 United States 6 Global 44
Alfa Chemistry
Tel
1-516-6625404
Fax
1-516-927-0118
Email
support@alfa-chemistry.com
Country
United States
ProdList
9171
Advantage
60
Alfa Chemistry
Tel
+1-5166625404
Fax
1-516-927-0118
Email
Info@alfa-chemistry.com
Country
United States
ProdList
21317
Advantage
58
Aladdin Scientific
Tel
+1-833-552-7181
Email
sales@aladdinsci.com
Country
United States
ProdList
52927
Advantage
58
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View Lastest Price from 1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE manufacturers

Hebei Mojin Biotechnology Co., Ltd
Product
1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE 3205-94-5
Price
US $100.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
5000KG
Release date
2023-08-24
Hebei Guanlang Biotechnology Co., Ltd.
Product
1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE 3205-94-5
Price
US $10.00/PCS
Min. Order
1KG
Purity
99%
Supply Ability
100 mt
Release date
2021-05-17
Zhuozhou Wenxi import and Export Co., Ltd
Product
1-Cyclopentene-1,2-dicarboxylic anhydride 3205-94-5
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-06-27

3205-94-5, 1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDERelated Search:

CIS-BUTENEDIOIC ANHYDRIDE 2,3-Dimethylmaleic anhydride Cyclopentene TRANS-2-HEXEN-1-OL 3-METHYL-2(5H)-FURANONE 1-Methylcyclopentene 4-METHYL-2(5H)-FURANONE Methyl 2-hexenoate 2,5-Dihydrofuran trans-2-Methyl-2-pentenoic acid TRANS-2-HEXENOIC ACID Citraconic anhydride TRANS-2-PENTENOIC ACID 1-Cyclopentenecarboxylic acid ANGELIC ACID 3-METHYL-2-HEXENOIC ACID 1,2-DIMETHYLCYCLOPENTENE 1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE

  • 1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE
  • 5,6-Dihydro-1H-cyclopenta[c]furan-1,3(4H)-dione
  • Cyclopentene-1,2-dicarboxylic acid anhydride
  • 4,5,6,6a-Tetrahydro-1H-cyclopenta[c]furan-1,3(3aH)-dione
  • Cyclopentane-1,2-dicarboxylic anhydride
  • 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-Cyclopenta[c]furan-1,3(4H)-dione, 5,6-dihydro-
  • 1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE ISO 9001：2015 REACH
  • 1H，3H，4H，5H，6H-Cyclopenta[c]furan-1,3-dione
  • 3205-94-5
  • Carboxylic Acid Anhydrides
  • Carbonyl Compounds
  • Building Blocks
  • Organic Building Blocks
  • Carbonyl Compounds
  • Carboxylic Acid Anhydrides
  • Organic Building Blocks
  • Building Blocks
  • Carbonyl Compounds
  • Carboxylic Acid Anhydrides
  • Chemical Synthesis
  • Organic Building Blocks