Sulfamethoxypyridazine-d3

• CAT Number: R026072
• CAS Number: 1172846-03-5
• Molecular Formula: C11H12N4O3S
• Molecular Weight: 283.32
• Purity: ≥95%
• Synonyms: 4-Amino-N-(6-methoxy-3-pyridazinyl)-benzenesulfonamide-d3; 3-Methoxy-6-sulfanilamidopyridazine-d3; 6-Sulfanilamido-3-methoxypyridazine-d3; Sultirene-d3; N1-(6-Methoxy-3-pyridazinyl)sulfanilamide-d3; Paramid-d3; Paramid Supra-d3
• Storage: -20°C
• IUPAC Name: 4-amino-N-[6-(trideuteriomethoxy)pyridazin-3-yl]benzenesulfonamide
• InChI: InChI=1S/C11H12N4O3S/c1-18-11-7-6-10(13-14-11)15-19(16,17)9-4-2-8(12)3-5-9/h2-7H,12H2,1H3,(H,13,15)/i1D3
• InChIKey: VLYWMPOKSSWJAL-FIBGUPNXSA-N
• SMILES: COC1=NN=C(C=C1)NS(=O)(=O)C2=CC=C(C=C2)N

Sulfamethoxypyridazine-d3 is a deuterated form of the antibiotic sulfamethoxypyridazine, where three hydrogen atoms are replaced with deuterium. This isotopic labeling makes the compound useful in pharmacokinetic studies, allowing researchers to track the drug’s absorption, distribution, metabolism, and excretion with greater precision. It is particularly valuable in mass spectrometry and NMR spectroscopy, where the deuterium atoms help distinguish the labeled drug from its non-labeled counterpart. Sulfamethoxypyridazine-d3 retains the same antibacterial properties as the original drug.