3,4-Diiodothiophene CAS 19259-08-6

Purity 97%+In StockPharmaceutical Standards
CAS No.19259-08-6
Molecular FormulaC4H2I2S
Molecular Weight335.93 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3,4-Diiodothiophene CAS 19259-08-6 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3,4-Diiodothiophene.

3,4-Diiodothiophene (CAS 19259-08-6), molecular formula C4H2I2S and molecular weight 335.93 g/mol, is a CATO reference standard with documented purity and traceability.

3,4-Diiodothiophene (C4H2I2S) contains sulfur-containing functionality, iodine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC4H2I2S
Molecular Weight335.93 g/mol
Purity97%+
StorageStore at room temperature
Solubility (reference)Soluble in methanol, acetonitrile, DMSO
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1962
Halogen ContentI-containing
Sulfur Atoms1

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Why CATO?