1-ethynyl-3,5-difluorobenzene CAS 151361-87-4

Purity 97%+In StockPharmaceutical Standards
CAS No.151361-87-4
Molecular FormulaC8H10F2
Molecular Weight144.16 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-ethynyl-3,5-difluorobenzene CAS 151361-87-4 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 144.16 g/mol gives 1-ethynyl-3,5-difluorobenzene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

1-ethynyl-3,5-difluorobenzene (CAS 151361-87-4) is a high-purity analytical reference standard with the molecular formula C8H10F2 and a molecular weight of 144.16 g/mol.

Structurally, 1-ethynyl-3,5-difluorobenzene (C8H10F2) contains fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 144.16 g/mol, it falls into the low-molecular-weight range. 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.

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 FormulaC8H10F2
Molecular Weight144.16 g/mol
Purity97%+
StorageStore at 2-8°C, keep tightly closed to prevent evaporation
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.)2000
Halogen ContentF-containing

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