Quinoxaline-2-carboxylic acid-D₄

QCA D4 (CAS 2244217-89-6) is a high-purity reference standard produced and distributed by WITEGA Laboratorien Berlin-Adlershof GmbH. This deuterated reference material supports robust LC-MS/MS workflows and also integrates well with GC-MS. Use it to establish traceability, build accurate calibration curves, and perform reliable method validation. Moreover, it enables confident confirmatory analysis across complex matrices in regulated environments.

Designed for modern analytical demands, this reference standard helps minimize matrix effects and improves precision at low levels. It suits quantitative assays where reproducibility matters. Additionally, laboratories can apply it to cross-validate methods between instruments and sites. Because it is stable and well-characterized, routine quality control becomes efficient and consistent.

• Supports LC-MS/MS and GC-MS quantification with strong signal fidelity
• Enables traceability and calibration for multi-lab comparability
• Facilitates method validation and confirmatory analysis in diverse matrices
• Fits multi-residue method development with clear response behavior

Typical use cases include regulated laboratories seeking defensible results, pharmaceutical research investigating metabolism pathways, residue control programs, and metabolism studies in complex biological samples. Furthermore, multi-residue method development benefits from its predictable response and clean spectra.

With QCA D4 (CAS 2244217-89-6), analysts can streamline calibration strategies and reduce rework. Therefore, routine testing and investigational studies both gain higher confidence. As a dedicated reference standard from WITEGA Laboratorien Berlin-Adlershof GmbH, it is suited for rigorous quantitative analysis and long-term quality assurance.

You can download your Safety Data Sheet for OP020

For other languages please contact us: witega@witega.de