6-(Phenyl-D₅)pteridine-2,4,7-triamine

Triamterene D5 (CAS 1189922-23-3) is a high-purity reference standard produced and distributed by WITEGA Laboratorien Berlin-Adlershof GmbH. This stable isotope labeled reference supports reliable LC-MS/MS and GC-MS analytical quantification. Use it to establish traceability, perform accurate calibration, streamline method validation, and conduct confident confirmatory analysis. As a deuterated analogue, it improves selectivity and compensates for matrix effects. Therefore, laboratories can achieve robust results from screening through confirmation.

Designed for demanding workflows, this reference standard provides consistency across batches and matrices. Moreover, it integrates smoothly with existing methods and instrument platforms. You gain precise quantitation with minimal optimization. Key advantages include:

• Exceptional purity and documented traceability for defensible data
• Consistent response factors for LC-MS/MS calibration across ranges
• Reliable GC-MS confirmatory analysis with clear identification
• Efficient method validation and verification in routine testing

Typical use cases span regulated laboratories, pharmaceutical research, residue control programs, metabolism studies, and multi-residue method development. Additionally, the product suits proficiency testing and system suitability checks. Every batch is supported by documentation from WITEGA Laboratorien Berlin-Adlershof GmbH, ensuring confidence in long-term implementation.

For daily operation, prepare calibration curves and quality control samples using appropriate solvents and diluents. Start with a fresh stock solution, then create working levels covering your reportable range. Next, spike relevant matrices to evaluate recovery, selectivity, and linearity. Finally, verify precision and accuracy across days to confirm rugged performance.

Each shipment from WITEGA Laboratorien Berlin-Adlershof GmbH includes comprehensive lot-specific information for traceability. Furthermore, technical support helps integrate the reference standard into LC-MS/MS or GC-MS assays quickly. Choose this reference standard to enhance quantitative reliability, simplify audits, and strengthen your laboratory’s compliance strategy.

You can download your Safety Data Sheet for OP252

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