(E,4E)-4-[cyano-[6-(hydroxymethyl)-3,4,5-tris(oxidanyl)oxan-2-yl]oxy-methylidene]hex-2-enedioic acid (E,4E)-4-[cyano-[[3,4,5-trihydroxy-6-(hydroxymethyl)-2-oxanyl]oxy]methylidene]-2-hexenedioic acid 2973-58-2 A820032 CAS 2973-58-2

Purity 97%+In StockPharmaceutical Standards
CAS No.2973-58-2
Molecular FormulaC8H13BrO3
Molecular Weight237.09 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(E,4E)-4-[cyano-[6-(hydroxymethyl)-3,4,5-tris(oxidanyl)oxan-2-yl]oxy-methylidene]hex-2-enedioic acid (E,4E)-4-[cyano-[[3,4,5-trihydroxy-6-(hydroxymethyl)-2-oxanyl]oxy]methylidene]-2-hexenedioic acid 2973-58-2 A820032 CAS 2973-58-2 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (E,4E)-4-[cyano-[6-(hydroxymethyl)-3,4,5-tris(oxidanyl)oxan-2-yl]oxy-methylidene]hex-2-enedioic acid (E,4E)-4-[cyano-[[3,4,5-trihydroxy-6-(hydroxymethyl)-2-oxanyl]oxy]methylidene]-2-hexenedioic acid 2973-58-2 A820032.

(E,4E)-4-[cyano-[6-(hydroxymethyl)-3,4,5-tris(oxidanyl)oxan-2-yl]oxy-methylidene]hex-2-enedioic acid (E,4E)-4-[cyano-[[3,4,5-trihydroxy-6-(hydroxymethyl)-2-oxanyl]oxy]methylidene]-2-hexenedioic acid 2973-58-2 A820032 (CAS 2973-58-2) is a high-purity analytical reference standard with the molecular formula C8H13BrO3 and a molecular weight of 237.09 g/mol.

(E,4E)-4-[cyano-[6-(hydroxymethyl)-3,4,5-tris(oxidanyl)oxan-2-yl]oxy-methylidene]hex-2-enedioic acid (E,4E)-4-[cyano-[[3,4,5-trihydroxy-6-(hydroxymethyl)-2-oxanyl]oxy]methylidene]-2-hexenedioic acid 2973-58-2 A820032 (C8H13BrO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; 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.

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.

As a certified reference material (CRM), (E,4E)-4-[cyano-[6-(hydroxymethyl)-3,4,5-tris(oxidanyl)oxan-2-yl]oxy-methylidene]hex-2-enedioic acid (E,4E)-4-[cyano-[[3,4,5-trihydroxy-6-(hydroxymethyl)-2-oxanyl]oxy]methylidene]-2-hexenedioic acid 2973-58-2 A820032 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 FormulaC8H13BrO3
Molecular Weight237.09 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityHygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1957
Halogen ContentBr-containing

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