3a,4,7,7a-Tetrahydro-4,7-epoxyisobenzofuran-1,3-dione

Name: 3a,4,7,7a-Tetrahydro-4,7-epoxyisobenzofuran-1,3-dione
Brand: ChemScene
Availability: InStock
Rating: 5 (1 reviews)

CAS No. 5426-09-5
Cat. No. CS-0155623
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.

3a,4,7,7a-Tetrahydro-4,7-epoxyisobenzofuran-1,3-dione|CS-0155623

Structure of 5426-09-5

Size

Price

Quantity

* Please select Quantity before adding items.

Description

Octamethylporphyrin was readily obtained from ethyl 3,4,5-trimethylpyrrole-2-carboxylate. Steric control can be overridden by apparent electronic effect is demonstrated by the even bulkier pyrrole derivative, ethyl 3,4,5-trimethylpyrrole-2-carboxylate. The reaction with diazonium salts of theEthyl 3,4,5-trimethylpyrrole-2-carboxylatehas been examined in detail by chromatographic and spectroscopic methods. In the presence of a strong mineral acid, Ethyl 3,4,5-trimethylpyrrole-2-carboxylate reacts with p-nitrobenzenediazonium ions to give a red, chemically labile, azo dye.

Application

4,10-Dioxatri-cyclo[5.2.1.0²,⁶]dec-8-ene-3,5-dione serves as a versatile bicyclic synthon in heterocyclic synthesis, enabling efficient access to fused polycyclic architectures through Diels-Alder and Michael addition cascades. Its embedded enone system and strained cycloalkene framework facilitate controlled, regioselective transformations under mild conditions, offering bench-stable reactivity and compatibility with diverse functional groups.

General Information

CAS No. 5426-09-5
Cat. No. CS-0155623
Purity ≥95%
MDL No. None
Storage -20°C, sealed storage, away from moisture
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₈H₆O₄
Molecular Weight 166.13
Synonym(s) 7-Oxanorborna-2-ene-5,6-dicarboxylic anhydride
SMILES C1=CC2C3C(C1O2)C(=O)OC3=O

Computational Chemistry Data

TPSA 52.6
LogP -0.3606
H_Acceptors 4
H_Donors 0
Rotatable_Bonds 0

Safety Information

Download SDS

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

Quality Control

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

Other Classifications

Building Blocks Functional Group Anhydride

Building Blocks Skeleton Bridge Rings compounds Other bridge ring compounds

Key Words

5426-09-5 sigma5426-09-5 manufacturer5426-09-5 price5426-09-5 structure5426-09-5 SDSbuy 5426-09-55426-09-5 supplier5426-09-5 uses5426-09-5 molecular weightprice of 5426-09-55426-09-5 chemical name formula of 5426-09-5

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:

3a,4,7,7a-Tetrahydro-4,7-epoxyisobenzofuran-1,3-dione

CAS No. 5426-09-5

Recommended Products