Trimethoprim-D₉

5-(3,4,5-Trimethoxy-D₉-benzyl)pyrimidine-2,4-diamine

Trimethoprim-D9 (CAS 1189460-62-5) is a deuterated reference standard produced and distributed by WITEGA Laboratorien Berlin-Adlershof GmbH. It enables robust LC-MS/MS and GC-MS quantification across challenging matrices. Use it for calibration, method validation, and confirmatory analysis with reliable traceability. Related searches include deuterated antibiotic reference standard, LC-MS/MS calibration, GC-MS quantification, method validation material, confirmatory analysis reference. Additional topics: traceability in residue testing, pharmaceutical metabolism studies, multi-residue method development. Also: regulated laboratory quality control, mass spectrometry reference material, matrix-matched calibration, stable isotope labeled analyte.

Because it is deuterated, signal response closely parallels the native analyte. Therefore quantification becomes consistent and reproducible. Trimethoprim-D9 (CAS 1189460-62-5) supports clear peak identification under complex conditions. Each lot is supplied with documentation for purity and concentration. Traceability to gravimetric preparation improves audit readiness. It performs well in aqueous and organic solvent systems, ensuring dependable results.

• High chemical purity and accurate concentration for dependable calibration.
• Optimized for LC-MS/MS and GC-MS detection in diverse matrices.
• Ideal for calibration curves and matrix-matched standards.
• Supports method validation and confirmatory analysis requirements.
• Backed by traceable production from WITEGA Laboratorien Berlin-Adlershof GmbH.

Typical applications include regulated laboratories, pharmaceutical research, residue control, metabolism studies, and multi-residue method development. Moreover, it fits seamlessly into routine monitoring and project-specific investigations.

1. Prepare a stock solution using validated solvents and clean glassware.
2. Create matrix-matched calibration levels across the working range.
3. Acquire LC-MS/MS or GC-MS MRM data with stable transitions.
4. Fit calibration models and verify linearity and precision.
5. Confirm identity with ion ratios and retention time criteria.

For technical documentation, batch availability, or custom packaging, contact WITEGA Laboratorien Berlin-Adlershof GmbH. This reference standard integrates smoothly with quality systems and accreditation workflows. Trimethoprim-D9 (CAS 1189460-62-5) delivers confidence from calibration to confirmation in demanding analytical programs.

You can download your Safety Data Sheet for OP070

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