But-2-ynylmagnesium bromide, 0.50 M in 2-MeTHF CAS 13254-28-9

Purity 97%+In StockPharmaceutical Standards
CAS No.13254-28-9
Molecular FormulaC4H5BrMg
Molecular Weight157.29 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

But-2-ynylmagnesium bromide, 0.50 M in 2-MeTHF CAS 13254-28-9 chemical structure

Description

CATO supplies But-2-ynylmagnesium bromide, 0.50 M in 2-MeTHF (CAS 13254-28-9), a certified reference material (molecular formula C4H5BrMg, MW 157.29 g/mol) for analytical method development and quality control.

But-2-ynylmagnesium bromide, 0.50 M in 2-MeTHF (C4H5BrMg) contains a salt form, bromine substitution. 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.

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), But-2-ynylmagnesium bromide, 0.50 M in 2-MeTHF 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 FormulaC4H5BrMg
Molecular Weight157.29 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.)1960
Halogen ContentBr-containing

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