1-(2,4-Dichloro-5-fluorophenyl)ethane-1-thiol CAS 1183717-04-5

Purity 97%+In StockPharmaceutical Standards
CAS No.1183717-04-5
Molecular FormulaC8H7Cl2FS
Molecular Weight225.11 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-(2,4-Dichloro-5-fluorophenyl)ethane-1-thiol CAS 1183717-04-5 chemical structure

Description

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.

1-(2,4-Dichloro-5-fluorophenyl)ethane-1-thiol (CAS 1183717-04-5), molecular formula C8H7Cl2FS and molecular weight 225.11 g/mol, is a CATO reference standard with documented purity and traceability.

1-(2,4-Dichloro-5-fluorophenyl)ethane-1-thiol (C8H7Cl2FS) contains sulfur-containing functionality, fluorine/chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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 FormulaC8H7Cl2FS
Molecular Weight225.11 g/mol
Purity97%+
StorageStore at room temperature, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1989
Halogen ContentF/Cl-containing
Sulfur Atoms1

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