5-Bromopent-2-yne CAS 18719-27-2

Purity 97%+In StockPharmaceutical Standards
CAS No.18719-27-2
Molecular FormulaC5H7Br
Molecular Weight147.01 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Bromopent-2-yne CAS 18719-27-2 chemical structure

Description

The occurrence of 5-Bromopent-2-yne is closely related to bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 5-Bromopent-2-yne (CAS 18719-27-2), a certified reference material (molecular formula C5H7Br, MW 147.01 g/mol) for analytical method development and quality control.

Structurally, 5-Bromopent-2-yne (C5H7Br) contains bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 147.01 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 FormulaC5H7Br
Molecular Weight147.01 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)2.0
CAS Registry Year (est.)1962
Halogen ContentBr-containing

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