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CAS 163921-65-1 — Azithromycin-d3

Azithromycin-d3 is a stable isotope-labeled derivative of the macrolide antibiotic azithromycin, primarily used as an internal standard in mass spectrometry-based analytical research. This compound is identified by CAS number 163921-65-1 and carries no signal word for hazard classification. Molekula supplies Azithromycin-d3 from research to bulk quantities with full documentation and ISO 9001:2015 traceability.