4733-50-0 2,3-Dicyanohydroquinone 1,2-Benzenedicarbonitrile, 3,6-dihydroxy- (9CI) 3,6-Dihydroxyphthalonitrile Phthalonitrile, 3,6-dihydroxy- (8CI) AI3-18625 2,3-Dicyanobenzene-1,4-diol 2,3-Dicyano-p-hydroquinone 3,6-Dihydroxyphthalodinitrile EINECS 225-241-0 NSC 43554 CAS 4733-50-0

Description

The occurrence of 4733-50-0 2,3-Dicyanohydroquinone 1,2-Benzenedicarbonitrile, 3,6-dihydroxy- (9CI) 3,6-Dihydroxyphthalonitrile Phthalonitrile, 3,6-dihydroxy- (8CI) AI3-18625 2,3-Dicyanobenzene-1,4-diol 2,3-Dicyano-p-hydroquinone 3,6-Dihydroxyphthalodinitrile EINECS 225-241-0 NSC 43554 is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

4733-50-0 2,3-Dicyanohydroquinone 1,2-Benzenedicarbonitrile, 3,6-dihydroxy- (9CI) 3,6-Dihydroxyphthalonitrile Phthalonitrile, 3,6-dihydroxy- (8CI) AI3-18625 2,3-Dicyanobenzene-1,4-diol 2,3-Dicyano-p-hydroquinone 3,6-Dihydroxyphthalodinitrile EINECS 225-241-0 NSC 43554 (CAS 4733-50-0), molecular formula C8H10N2O2 and molecular weight 166.18 g/mol, is a CATO reference standard with documented purity and traceability.

4733-50-0 2,3-Dicyanohydroquinone 1,2-Benzenedicarbonitrile, 3,6-dihydroxy- (9CI) 3,6-Dihydroxyphthalonitrile Phthalonitrile, 3,6-dihydroxy- (8CI) AI3-18625 2,3-Dicyanobenzene-1,4-diol 2,3-Dicyano-p-hydroquinone 3,6-Dihydroxyphthalodinitrile EINECS 225-241-0 NSC 43554 (C8H10N2O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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

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