1-Amino-4-(methylamino)-9,10-anthracenedione

Disperse Violet 4 (CAS 1220-94-6) is a high-quality reference standard produced and distributed by WITEGA Laboratorien Berlin-Adlershof GmbH. Laboratories rely on this textile dye reference material to strengthen LC-MS/MS and GC-MS workflows. It enables precise quantification and traceable calibration, even at low levels. Consequently, method validation and confirmatory analysis become faster and more reliable. Analysts in residue control and research benefit from consistent performance lot after lot.

Use this reference standard to build accurate calibration curves, verify retention times, and assess ion ratios. Moreover, it supports traceability from preparation to reporting, which improves data integrity. You can apply it in solvent-based calibration or matrix-matched approaches. The material fits routine screening, targeted quantification, and confirmatory workflows. Disperse Violet 4 (CAS 1220-94-6) helps you maintain confidence across batches and instruments.

• Optimized for LC-MS/MS and GC-MS quantification with robust signal response.
• Traceable calibration support for accreditation-ready workflows.
• Reliable performance for method development and validation.
• Consistent lot-to-lot quality to reduce rework and uncertainty.
• Clear documentation for seamless integration into SOPs.

Regulated laboratories, pharmaceutical research teams, and residue control units use this reference standard to substantiate results. It also suits metabolism studies of colorants and multi-residue method development, where selectivity and precision matter. Furthermore, it streamlines confirmatory analysis by providing a dependable benchmark against which sample results can be compared. Disperse Violet 4 (CAS 1220-94-6) supports repeatable quantification across diverse matrices and instrument platforms.

• Residue monitoring in textiles and consumer products.
• Method transfer and cross-lab comparability studies.
• Routine QC checks, calibration verification, and performance trending.
• Spike-recovery experiments and matrix effect evaluation.

Backed by the expertise of WITEGA, this reference standard delivers the stability, documentation, and consistency you expect. Choose Disperse Violet 4 (CAS 1220-94-6) to enhance traceability, reduce uncertainty, and improve decision-making from screening to confirmation.

You can download your Safety Data Sheet for OP228

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