A1141550
                    Cycloheximide , 95% , 66-81-9
                            Synonym(s):
CHX;Actidione;Cycloheximide - CAS 66-81-9 - Calbiochem;Cycloheximide, High Purity - CAS 66-81-9 - Calbiochem;InSolution Cycloheximide - CAS 66-81-9 - Calbiochem
                            
                        
                CAS NO.:66-81-9
Empirical Formula: C15H23NO4
Molecular Weight: 281.35
MDL number: MFCD06202064
EINECS: 200-636-0
Update time: 2022-07-08
                    PRODUCT Properties
| Melting point: | 111-116 °C | 
                                    
| alpha | -28.5 º (c=1, CHCl3) | 
                                    
| Boiling point: | 492℃ | 
                                    
| Density | 1.0867 (rough estimate) | 
                                    
| refractive index | 1.5000 (estimate) | 
                                    
| Flash point: | 87°0°(230°F) | 
                                    
| storage temp. | 2-8°C | 
                                    
| solubility | Soluble in Ethanol (up to 14 mg/ml) or in Water (up to 7 mg/ml). | 
                                    
| form | Glassy Irregular Shaped Granules | 
                                    
| pka | 11.61±0.40(Predicted) | 
                                    
| color | White | 
                                    
| biological source | microbial | 
                                    
| Water Solubility | 2.1 g/100 mL (2 ºC) | 
                                    
| BRN | 88868 | 
                                    
| Stability: | Stable. Combustible. Incompatible with strong oxidizing agents, acid chlorides, acid anhydrides, alkali. | 
                                    
| CAS DataBase Reference | 66-81-9(CAS DataBase Reference) | 
                                    
| EPA Substance Registry System | Cycloheximide (66-81-9) | 
                                    
Description and Uses
Cycloheximide is a glutarimide-type antibiotic produced by Streptomyces griseus. Colorless crystals, C15H23NO4 (281.4), melting point: 115.5–117 ?C, weak acidic substance (pKa 11.2), Soluble in chloroform, isopropanol and methanol; water > 21 g/L (2 ?C). Stable in pH 3–5, but rapidly destroyed in alkaline solutions.
Cycloheximide is an antibiotic substance isolated from the beers of streptomycin-producing strains of Streptomyces griseus. Cycloheximide is used as fungicide.
Safety
| Symbol(GHS) | ![]() ![]() GHS06,GHS08  | 
                                    
| Signal word | Danger | 
| Hazard statements | H301-H341-H360D-H412 | 
| Precautionary statements | P201-P202-P264-P270-P273-P301+P310 | 
| Hazard Codes | Xn,T,N,T+ | 
| Risk Statements | 22-68-61-51/53-28-38-52/53 | 
| Safety Statements | 53-45-61-36/37-28 | 
| RIDADR | UN 2811 6.1/PG 1 | 
| WGK Germany | 3 | 
| RTECS | MA4375000 | 
| HazardClass | 6.1(a) | 
| PackingGroup | II | 
| HS Code | 29419000 | 
| Hazardous Substances Data | 66-81-9(Hazardous Substances Data) | 
| Toxicity | LD50 i.v. in mice: 150 mg/kg (Leach) | 
| Limited Quantities | 100ml (liquid) or 0.5 Kg (solid) | 
| Excepted Quantities | Max Inner Pack (1g or 1ml) and Max Outer Pack (500g or 500ml) | 




