O1B5KJ235I 262-12-4 Dibenzo-p-dioxin Dibenzo(1,4)dioxin Dibenzo(b,e)(1,4)dioxin AI3 08911 CCRIS 211 Dibenzodioxin Dibenzo-para-dioxin Diphenylene dioxide EINECS 205-974-2 HSDB 4112 NCI-C03656 Oxanthrene Phenodioxin UNII-O1B5KJ235I CAS 262-12-4

Purity 97%+In StockPharmaceutical Standards
CAS No.262-12-4
Molecular FormulaC12H20O2
Molecular Weight196.29 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

O1B5KJ235I 262-12-4 Dibenzo-p-dioxin Dibenzo(1,4)dioxin Dibenzo(b,e)(1,4)dioxin AI3 08911 CCRIS 211 Dibenzodioxin Dibenzo-para-dioxin Diphenylene dioxide EINECS 205-974-2 HSDB 4112 NCI-C03656 Oxanthrene Phenodioxin UNII-O1B5KJ235I CAS 262-12-4 chemical structure

Description

O1B5KJ235I 262-12-4 Dibenzo-p-dioxin Dibenzo(1,4)dioxin Dibenzo(b,e)(1,4)dioxin AI3 08911 CCRIS 211 Dibenzodioxin Dibenzo-para-dioxin Diphenylene dioxide EINECS 205-974-2 HSDB 4112 NCI-C03656 Oxanthrene Phenodioxin UNII-O1B5KJ235I (CAS 262-12-4) is a high-purity analytical reference standard with the molecular formula C12H20O2 and a molecular weight of 196.29 g/mol.

The molecular framework of O1B5KJ235I 262-12-4 Dibenzo-p-dioxin Dibenzo(1,4)dioxin Dibenzo(b,e)(1,4)dioxin AI3 08911 CCRIS 211 Dibenzodioxin Dibenzo-para-dioxin Diphenylene dioxide EINECS 205-974-2 HSDB 4112 NCI-C03656 Oxanthrene Phenodioxin UNII-O1B5KJ235I (C12H20O2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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.

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 FormulaC12H20O2
Molecular Weight196.29 g/mol
Purity97%+
StorageStore at 2-8°C
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1957

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