1,1'-(4,6-Dihydroxy-1,3-phenylene)-bis-ethanone resodiacetophenone 1,1'-(4,6-dihydroxy-1,3-phenylene)bisethanone 4,6-diacetylresorcinol 1-(5-acetyl-2,4-dihydroxyphenyl)ethan-1-one 4',6'-diacetylresorcinol 2161-85-5 CAS 2161-85-5

Purity 97%+In StockPharmaceutical Standards
CAS No.2161-85-5
Molecular FormulaC10H10O4
Molecular Weight194.18 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,1'-(4,6-Dihydroxy-1,3-phenylene)-bis-ethanone resodiacetophenone 1,1'-(4,6-dihydroxy-1,3-phenylene)bisethanone 4,6-diacetylresorcinol 1-(5-acetyl-2,4-dihydroxyphenyl)ethan-1-one 4',6'-diacetylresorcinol 2161-85-5 CAS 2161-85-5 chemical structure

Description

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.

1,1'-(4,6-Dihydroxy-1,3-phenylene)-bis-ethanone resodiacetophenone 1,1'-(4,6-dihydroxy-1,3-phenylene)bisethanone 4,6-diacetylresorcinol 1-(5-acetyl-2,4-dihydroxyphenyl)ethan-1-one 4',6'-diacetylresorcinol 2161-85-5 (CAS 2161-85-5), molecular formula C10H10O4 and molecular weight 194.18 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 1,1'-(4,6-Dihydroxy-1,3-phenylene)-bis-ethanone resodiacetophenone 1,1'-(4,6-dihydroxy-1,3-phenylene)bisethanone 4,6-diacetylresorcinol 1-(5-acetyl-2,4-dihydroxyphenyl)ethan-1-one 4',6'-diacetylresorcinol 2161-85-5 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 194.18 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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.

Physical & Chemical Properties

Molecular FormulaC10H10O4
Molecular Weight194.18 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957

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