5-Methyl-3a,4,7,7a-tetrahydroisobenzofuran-1,3-dione CAS 3425-89-6

Purity 97%+In StockPharmaceutical Standards
CAS No.3425-89-6
Molecular FormulaC9H10O3
Molecular Weight166.17 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Methyl-3a,4,7,7a-tetrahydroisobenzofuran-1,3-dione CAS 3425-89-6 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 166.17 g/mol gives 5-Methyl-3a,4,7,7a-tetrahydroisobenzofuran-1,3-dione distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

5-Methyl-3a,4,7,7a-tetrahydroisobenzofuran-1,3-dione (CAS 3425-89-6), molecular formula C9H10O3 and molecular weight 166.17 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 5-Methyl-3a,4,7,7a-tetrahydroisobenzofuran-1,3-dione is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 166.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

CATO manufactures 5-Methyl-3a,4,7,7a-tetrahydroisobenzofuran-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.

Physical & Chemical Properties

Molecular FormulaC9H10O3
Molecular Weight166.17 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.)1957

Recommended Standards

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