Description
herbal extract,7-ethyl-camptothecin,78287-27-1: Content (HPLC) is more than 99%,single impurity can be less than 0.5% It is derived from camptothecin, mainly used to derive SN-38, CPT-11. This product is straw yellow crystalline powder, easy to be deteriorated by light;, melting point: 258~260°C (decompose); specific optical rotation: +45. Molecular formula: C22H20N2O4 Molecular weight: 376 Specification: >98%(HPLC) Loss on drying: <0.5% Total ash: <0.1% Heavy metal: <10ppm Physiochemical properties: This product is straw yellow crystalline powder, easy to be deteriorated by light;, melting point: 258~260°C (decompose); specific optical rotation: +45. Source: Derived from camptothecin. Use: Mainly used to derive SN-38, CPT-11. Packaging: Sealed, avoid sunlight and moisture. Storage: Preserve it at low temperature; seal it airtight; prevent it from light.