(1E,4Z,6E)-5-Hydroxy-1,7-bis(2-hydroxyphenyl)hepta-1,4,6-trien-3-one CAS 1236545-54-2

Purity 97%+In StockPharmaceutical Standards
CAS No.1236545-54-2
Molecular FormulaC19H16O4
Molecular Weight308.33 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(1E,4Z,6E)-5-Hydroxy-1,7-bis(2-hydroxyphenyl)hepta-1,4,6-trien-3-one CAS 1236545-54-2 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 308.33 g/mol gives (1E,4Z,6E)-5-Hydroxy-1,7-bis(2-hydroxyphenyl)hepta-1,4,6-trien-3-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

(1E,4Z,6E)-5-Hydroxy-1,7-bis(2-hydroxyphenyl)hepta-1,4,6-trien-3-one (CAS 1236545-54-2) is a high-purity analytical reference standard with the molecular formula C19H16O4 and a molecular weight of 308.33 g/mol.

Based on its molecular formula C19H16O4, (1E,4Z,6E)-5-Hydroxy-1,7-bis(2-hydroxyphenyl)hepta-1,4,6-trien-3-one contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 308.33 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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 FormulaC19H16O4
Molecular Weight308.33 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1990

Recommended Standards

Why CATO?