Campathecin structure 
             | 
        Common Name | Campathecin | ||
|---|---|---|---|---|
| CAS Number | 7689-03-4 | Molecular Weight | 348.352 | |
| Density | 1.5±0.1 g/cm3 | Boiling Point | 757.0±60.0 °C at 760 mmHg | |
| Molecular Formula | C20H16N2O4 | Melting Point | 260 °C (dec.)(lit.) | |
| MSDS | Chinese USA | Flash Point | 411.6±32.9 °C | |
| Symbol | 
             
            
            GHS06  | 
        Signal Word | Danger | |
            Use of CampathecinCampathecin is a potent DNA enzyme topoisomerase I inhibitor, with an IC50 of 679 nM.  | 
    
| Name | camptothecin | 
|---|---|
| Synonym | More Synonyms | 
| Description | Campathecin is a potent DNA enzyme topoisomerase I inhibitor, with an IC50 of 679 nM. | 
|---|---|
| Related Catalog | |
| Target | 
                                    
                                     Topoisomerase I:679 nM (IC50)  | 
                            
| In Vitro | [3H]BrCPT labeling of topoisomerase I is enhanced greatly by the presence of DNA; very little labeling of isolated topoisomerase I or isolated DNA occurrs. Even in the presence of DNA, [3H]BrCPT labeling of topoisomerase I is inhibited by camptothecin, suggesting that both CPT and BrCPT bind to the same site on the DNA-topoisomerase I binary complex[1]. With increasing concentrations of camptothecin, closed circular pRR322 DNA (form I) is converted to nicked circular DNA (form 11). This apparent nicking activitv of camptothecin required DNA topoisomerase I[2]. | 
| Kinase Assay | Each reaction mixture (200 μL, total volume) contained 2 μg of supercoiled pDPT2789 DNA (2.4 nM plasmid concentration), 50 mM Tris-HCl, pH 7.5, 120 mM KCl, 10 mM MgCl2, 0.5 mM EDTA, 0.05% dimethyl sulfoxide, 1% methanol, 100 μg/mL BSA, 4.3 ng of calf thymus topoisomerase I (0.26 nM), and a CPT derivative. The reaction mixture is incubated at 37°C, and at the indicated times 20-μL aliquots are removed and terminated by the addition of 5 μL of SDS/Ficoll stop mix (final concentrations, 0.5% SDS, 2% Ficoll, 0.025% bromphenol blue). The samples are loaded onto a 1% agarose gel and analyzed by electrophoresis. | 
| References | 
| Density | 1.5±0.1 g/cm3 | 
|---|---|
| Boiling Point | 757.0±60.0 °C at 760 mmHg | 
| Melting Point | 260 °C (dec.)(lit.) | 
| Molecular Formula | C20H16N2O4 | 
| Molecular Weight | 348.352 | 
| Flash Point | 411.6±32.9 °C | 
| Exact Mass | 348.110992 | 
| PSA | 81.42000 | 
| LogP | 1.60 | 
| Vapour Pressure | 0.0±2.7 mmHg at 25°C | 
| Index of Refraction | 1.746 | 
| Water Solubility | insoluble | 
                                    CHEMICAL IDENTIFICATION
 
 
 
 
 
 
 HEALTH HAZARD DATAACUTE TOXICITY DATA
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 MUTATION DATA
 
 
 
  | 
                            
| Symbol | 
                                    
                                     
                                    
                                    GHS06  | 
                            
|---|---|
| Signal Word | Danger | 
| Hazard Statements | H301 | 
| Precautionary Statements | Missing Phrase - N15.00950417 | 
| Personal Protective Equipment | Eyeshields;Faceshields;Gloves;type P2 (EN 143) respirator cartridges | 
| Hazard Codes | T:Toxic; | 
| Risk Phrases | R25 | 
| Safety Phrases | S45-S36/37/39-S26 | 
| RIDADR | UN 1544 6.1/PG 3 | 
| WGK Germany | 3 | 
| RTECS | UQ0492000 | 
| Precursor 6 | |
|---|---|
| DownStream 9 | |
| 
                                    
                                    TAp73 promotes cell survival upon genotoxic stress by inhibiting p53 activity.
                                    
                                    
                                     Oncotarget 5(18) , 8107-22, (2014) p53 plays a key role in regulating DNA damage response by suppressing cell cycle progression or inducing apoptosis depending on extent of DNA damage. However, it is not clear why mild genotoxic stress...  | 
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                                    DNA damage-specific deubiquitination regulates Rad18 functions to suppress mutagenesis.
                                    
                                    
                                     J. Cell Biol. 206(2) , 183-97, (2014) Deoxyribonucleic acid (DNA) lesions encountered during replication are often bypassed using DNA damage tolerance (DDT) pathways to avoid prolonged fork stalling and allow for completion of DNA replica...  | 
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                                    A dihydroselenoquinazoline inhibits S6 ribosomal protein signalling, induces apoptosis and inhibits autophagy in MCF-7 cells.
                                    
                                    
                                     Eur. J. Pharm. Sci. 63 , 87-95, (2014) The PI3K/Akt/mTOR/S6 ribosomal protein signalling pathway is a key potential target in breast cancer therapy, playing a central role in proliferation and cell survival. In this study, we found that th...  | 
                                
| EINECS 444-280-6 | 
| Camptothecin | 
| d-Camptothecin | 
| 1H-Pyrano(3',4':6,7)indolizino(1,2-b)quinoline-3,14(4H,12H)-dione, 4-ethyl-4-hydroxy-, (S)- | 
| (S)-4-ethyl-4-hydroxy-1H-Pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione | 
| (S)-4-ethyl-4-hydroxy-1H-Pyrano(3',4':6,7)indolizino(1,2-b)quinoline-3,14(4H,12H)-dione | 
| CaMpathecin | 
| 1H-Pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione, 4-ethyl-4-hydroxy-, (4S)- | 
| (S)-(+)-Camptothecin | 
| (4S)-4-Ethyl-4-hydroxy-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione | 
| 1H-Pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione, 4-ethyl-4-hydroxy-, (S)- | 
| Camptohecin | 
| MFCD00081076 | 
| Baicalin std. | 
| CAMPTOTHECINE | 
| 1H-Pyrano(3',4':6,7)indolizino(1,2-b)quinoline-3,14(4H,12H)-dione, 4-ethyl-4-hydroxy-, (4S)- | 
| (S)-4-ethyl-4-hydroxy-1H-pyrano-[3',4':6,7]indolizinol[1,2-b]quinoline-3,14(4H,12H)-dione | 
| (+)-Camptothecin | 
| (+)-Camptothecine |