Phthalazine-1,4-dione CAS 20116-64-7

Purity 97%+In StockPharmaceutical Standards
CAS No.20116-64-7
Molecular FormulaC8H12N2O3S
Molecular Weight216.26 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Phthalazine-1,4-dione CAS 20116-64-7 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 216.26 g/mol gives Phthalazine-1,4-dione distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Phthalazine-1,4-dione (CAS 20116-64-7), molecular formula C8H12N2O3S and molecular weight 216.26 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, Phthalazine-1,4-dione (C8H12N2O3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 216.26 g/mol, it falls into the medium-molecular-weight range. 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.

CATO manufactures Phthalazine-1,4-dione under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC8H12N2O3S
Molecular Weight216.26 g/mol
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)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1962
Nitrogen Atoms2
Sulfur Atoms1

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Why CATO?