3,3-Dimethyl-2,2-bithiophene CAS 67984-20-7

Purity 97%+In StockPharmaceutical Standards
CAS No.67984-20-7
Molecular FormulaC10H10S2
Molecular Weight194.32 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3,3-Dimethyl-2,2-bithiophene CAS 67984-20-7 chemical structure

Description

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.

3,3-Dimethyl-2,2-bithiophene (CAS 67984-20-7), molecular formula C10H10S2 and molecular weight 194.32 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 3,3-Dimethyl-2,2-bithiophene (C10H10S2) is characterized by sulfur-containing functionality, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).

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 FormulaC10H10S2
Molecular Weight194.32 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1976
Sulfur Atoms2

Related Dimethyl Standards

Recommended Standards

Why CATO?