
Stable isotope
Nucleosyn provides Custom Stable Isotope (2H, 13C, 15N) compounds to support projects dedicated to : Bioanalytics, Omics research, Molecular Imaging, and Biomarker discovery.
[D3]-Trimethoprim
CAS #
1189923-38-3
Packing size
5mg, 10mg, 25mg, bulk

Trimethoprim (TMP) is an antibiotic mainly used to treat bladder infections, as well as middle ear infections and travelers’ diarrhea. TMP is also mostly used in combination with sulfamethoxazole for the treatment of cystitis and urinary tract infections. Trimethoprim can be taken by mouth.
Stable isotope labeled [D3]-Trimethoprim is intended for use as an internal standard for the quantification of Trimethoprim by LC or GC-mass spectrometry.
Aspect
Powder
Purity
Chemical purity 95%; Isotopic Enrichment 98%
Solubility
Water, DMSO, MeOH
Molecular weight
293.34
Molecular formula
C14H15D3N4O3
IUPAC
5-(3,5-dimethoxy-4-(methoxy-d3)benzyl)pyrimidine-2,4-diamine
D. Gonzalez et al., Bioanalysis, 2015, 7, 1137-1149. read article