44583 SIGMA Doxorubicin hydrochloride suitable for fluorescence, 98.0-102.0% (HPLC) Synonym: DOX, Hydroxydaunorubicin hydrochloride CAS Number 25316-40-9 Empirical Formula (Hill Notation) C27H29NO11 · HCl Molecular Weight 579.98 assay 98.0-102.0% (HPLC) mp 216 °C (dec.)(lit.) solubility H2O: soluble50 mg/mL, clear, orange to red DMSO: soluble THF: soluble ethanol: soluble methanol: soluble fluorescence λex 470 nm; λem 585 nm in ethanol suitability suitable for fluorescence storage temp. 2-8°C