26430 SIGMA Chlortetracycline hydrochloride BioReagent, suitable for fluorescence, from Streptomyces aureofaciens, ≥97.0% (AT) Synonym: 7-Chlorotetracycline hydrochloride CAS Number 64-72-2 Empirical Formula (Hill Notation) C22H23ClN2O8 · HCl Molecular Weight 515.34 biological source from Streptomyces aureofaciens product line BioReagent assay ≥97.0% (AT) impurities ≤3% water mp 210-215 °C (dec.)(lit.) fluorescence λex 392 nm; λem 536 nm in 0.1 M Tris pH 8.0, 10 mM Ca2+ suitability suitable for fluorescence storage temp. −20°C
