5-Iodo-2,3-dihydrothieno[3,4-b][1,4]dioxine CAS 219621-78-0

Purity 97%+In StockPharmaceutical Standards
CAS No.219621-78-0
Molecular FormulaC6H5IO2S
Molecular Weight268.07 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Iodo-2,3-dihydrothieno[3,4-b][1,4]dioxine CAS 219621-78-0 chemical structure

Description

The occurrence of 5-Iodo-2,3-dihydrothieno[3,4-b][1,4]dioxine is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

5-Iodo-2,3-dihydrothieno[3,4-b][1,4]dioxine (CAS 219621-78-0) is a high-purity analytical reference standard with the molecular formula C6H5IO2S and a molecular weight of 268.07 g/mol.

The molecular framework of 5-Iodo-2,3-dihydrothieno[3,4-b][1,4]dioxine (C6H5IO2S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

CATO manufactures 5-Iodo-2,3-dihydrothieno[3,4-b][1,4]dioxine 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 FormulaC6H5IO2S
Molecular Weight268.07 g/mol
Purity97%+
StorageStore at room temperature, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2019
Halogen ContentI-containing
Sulfur Atoms1

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