4-Oxo-cyclopentane-cis-1,2-dicarboxylic acid dimethyl ester

CAS No. 28269-02-5
Cat. No. CS-0050789
Molecule weight200.19
Purity≥95%
MDL No.None

HazMat Fee +

HazMat Fee

An item is classified as a dangerous good if our website displays Hazardous Material (HazMat) information for it. There is a HazMat shipping fee for each item that qualifies as a dangerous good, except in the following scenarios:

The shipment is processed through FedEx Ground under the Limited Quantity option.

Each bottle is packed as an Excepted Quantity, with a maximum of 1g for items in class 6.1 packing group I or II, and up to 25g for all other hazardous materials.

If shipping is charged to your FedEx account, the HazMat fee will be billed directly by the courier. Otherwise, the fee will be included on your invoice. To help you avoid the HazMat fee, we can package a 5g order of a class 6.1 packing group I or II material as five separate 1g units, and a 100g order of any other dangerous good as four 25g units. This packaging adjustment will be made unless you instruct otherwise on your purchase order. Below, you will find the fee schedule from FedEx for handling hazardous materials.

Type	HazMat Fee
Excepted Quantity	$0.00
FedEx Limited Quantities Ground	$0.00
Hazmat Ground shipping	$50.00+
Inaccessible (Haz class 6.1 or 9), Domestic	$68.00+
Accessible (Haz class 3, 4, 5 or 8), Domestic	$158.00+
Inaccessible (Haz class 6.1 or 9), International	$108.00+
Accessible (Haz class 3, 4, 5 or 8), International	$238.00+

An item is classified as a dangerous good if our website displays Hazardous Material (HazMat) information for it.

There is a HazMat shipping fee for each item that qualifies as a dangerous good. Please contact our quotation team via email to confirm the details.

*For research and further manufacturing use only, not for direct human use.

4-Oxo-cyclopentane-cis-1,2-dicarboxylic acid dimethyl ester|CS-0050789

Structure of 28269-02-5

Size

Price

Quantity

* Please select Quantity before adding items.

General Information

CAS No. 28269-02-5
Cat. No. CS-0050789
Purity ≥95%
MDL No. None
Storage Store at room temperature
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₉H₁₂O₅
Molecular Weight 200.19
Synonym(s) Dimethyl cis-4-Oxocyclopentane-1,2-dicarboxylate
SMILES O=C([C@H]1[C@@H](C(OC)=O)CC(C1)=O)OC

Description

This dimethyl ester derivative of cis-cyclopentane-1,2-dicarboxylic acid features a strategically positioned oxo group at the C4 position, enhancing its reactivity in cycloaddition and conjugate addition processes. The ester functionalities provide solubility in common organic solvents and stability under standard bench conditions, enabling reliable use in synthetic transformations.

Application

4-Oxo-cyclopentane-cis-1,2-dicarboxylic acid dimethyl ester serves as a versatile building block in synthetic organic chemistry, enabling efficient access to functionalized cyclopentane scaffolds. Its cis-configured diester moiety and α-oxo functionality facilitate controlled functionalization, including asymmetric reduction and nucleophilic addition reactions. The compound exhibits good bench stability and compatibility with standard purification techniques, making it well-suited for iterative synthesis workflows in medicinal chemistry and natural product derivatization.

Safety Information

Download SDS

GHS Pictogram :	GHS No : GHS07
Signal Word : Warning	UN#: N/A
Class : N/A	Packing Group : N/A
Hazard Statements : H302-H315-H319-H335
Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P330-P362+P364-P405-P501

Quality Control

To search for quality control of cas , please enter both the product number and the lot/batch number.

Computational Chemistry Data

TPSA 69.67
LogP -0.0723
H_Acceptors 5
H_Donors 0
Rotatable_Bonds 2

Other Classifications

Building Blocks Skeleton Fatty ring compounds Cyclopentane compounds

Building Blocks Skeleton Chiral compounds Chiral Building Blocks

Key Words

28269-02-5 sigma28269-02-5 manufacturer28269-02-5 price28269-02-5 structure28269-02-5 SDSbuy 28269-02-528269-02-5 supplier28269-02-5 uses28269-02-5 molecular weightprice of 28269-02-528269-02-5 chemical name formula of 28269-02-5

Salutation:	*Country or Region:
*Applicant Name:	*Organization Name:
*Email Address:	Quantity:
CAS NO. :	Product Name:
Remarks:
Upload Pictures

CAS.No.		Product Name
Applicant Name *		Email Address *
Phone Number *		Organization Name*
Country or Region*		Quantity*
Remarks:

Product Name:
Cat. No.: .		CAS NO. :
Quantity:

4-Oxo-cyclopentane-cis-1,2-dicarboxylic acid dimethyl ester

CAS No. 28269-02-5

Recommended Products