Sulfadiazine Impurity 1 (4-Hydroxy Sulfadiazine) CAS 56305-66-9

Purity 97%+In StockPharmaceutical Standards
CAS No.56305-66-9
Molecular FormulaC10H10N4O3S
Molecular Weight266.28 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Sulfadiazine Impurity 1 (4-Hydroxy Sulfadiazine) CAS 56305-66-9 chemical structure

Description

The occurrence of Sulfadiazine Impurity 1 (4-Hydroxy Sulfadiazine) is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Sulfadiazine Impurity 1 (4-Hydroxy Sulfadiazine) (CAS 56305-66-9), molecular formula C10H10N4O3S and molecular weight 266.28 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Sulfadiazine Impurity 1 (4-Hydroxy Sulfadiazine) is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 266.28 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

As a certified reference material (CRM), Sulfadiazine Impurity 1 (4-Hydroxy Sulfadiazine) meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC10H10N4O3S
Molecular Weight266.28 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)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1973
Nitrogen Atoms4
Sulfur Atoms1

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