Freon #142b CAS 75-68-3

Purity 97%+In StockPharmaceutical Standards
CAS No.75-68-3
Molecular FormulaC2H3ClF2
Molecular Weight100.50 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Freon #142b CAS 75-68-3 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 100.50 g/mol gives Freon #142b distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Freon #142b (CAS 75-68-3), a certified reference material (molecular formula C2H3ClF2, MW 100.50 g/mol) for analytical method development and quality control.

Owing to fluorine/chlorine substitution, Freon #142b is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 100.50 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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

As a certified reference material (CRM), Freon #142b meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC2H3ClF2
Molecular Weight100.50 g/mol
Purity97%+
StorageStore at 2-8°C, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)0.0
CAS Registry Year (est.)1957
Halogen ContentF/Cl-containing

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