(4r,7s)-Hexahydro-4,7-epoxyisobenzofuran-1,3-dione CAS 1164475-59-5

Purity 97%+In StockPharmaceutical Standards
CAS No.1164475-59-5
Molecular FormulaC8H8O4
Molecular Weight168.15 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(4r,7s)-Hexahydro-4,7-epoxyisobenzofuran-1,3-dione CAS 1164475-59-5 chemical structure

Description

CATO manufactures (4r,7s)-Hexahydro-4,7-epoxyisobenzofuran-1,3-dione under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

(4r,7s)-Hexahydro-4,7-epoxyisobenzofuran-1,3-dione (CAS 1164475-59-5) is a high-purity analytical reference standard with the molecular formula C8H8O4 and a molecular weight of 168.15 g/mol.

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, (4r,7s)-Hexahydro-4,7-epoxyisobenzofuran-1,3-dione is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 168.15 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

Physical & Chemical Properties

Molecular FormulaC8H8O4
Molecular Weight168.15 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1989

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