A5410512
                    MES , Molecular biology grade, ≥99.5%(t) , 4432-31-9
                            Synonym(s):
2-(N-Morpholino) ethanesulfonic acid;2-(N-Morpholino)ethanesulfonic Acid;4-Morpholineethanesulfonic acid
                            
                        
                CAS NO.:4432-31-9
Empirical Formula: C6H13NO4S
Molecular Weight: 195.24
MDL number: MFCD00006181
EINECS: 224-632-3
| Pack Size | Price | Stock | Quantity | 
| 10G | RMB236.00 | In Stock | 
                                                 | 
                                        
| 50G | RMB327.20 | In Stock | 
                                                 | 
                                        
| 250G | RMB647.20 | In Stock | 
                                                 | 
                                        
| 1kg | RMB1292.00 | In Stock | 
                                                 | 
                                        
| others | Enquire | 
Update time: 2022-07-08
                    PRODUCT Properties
| Melting point: | >300 °C(lit.) | 
                                    
| Boiling point: | 102°C | 
                                    
| Density | 1.208 (estimate) | 
                                    
| refractive index | 1.5500 (estimate) | 
                                    
| storage temp. | 2-8°C | 
                                    
| solubility | H2O: 0.5 M at 20 °C, clear | 
                                    
| pka | pKa at 0.1M ionic: 0°, 6.38; 20°, 6.15; 37°, 5.98; pKa1 1.99; pKa2 6.21; pKa/°C -0.011 | 
                                    
| form | Powder | 
                                    
| color | White | 
                                    
| PH | 2.5-4.0 (25℃ in neat) | 
                                    
| PH Range | 5.5 - 6.7 | 
                                    
| Water Solubility | 185.2g/L at 20℃ | 
                                    
| λmax | λ: 260 nm Amax: 0.01 λ: 280 nm Amax: 0.01  | 
                                    
| Merck | 13,5929 | 
                                    
| BRN | 6350956 | 
                                    
| Stability: | Stable. Incompatible with strong oxidizing agents. | 
                                    
| InChIKey | SXGZJKUKBWWHRA-UHFFFAOYSA-N | 
                                    
| LogP | -2.2 at 20℃ | 
                                    
| CAS DataBase Reference | 4432-31-9(CAS DataBase Reference) | 
                                    
| EPA Substance Registry System | 4-Morpholineethanesulfonic acid (4432-31-9) | 
                                    
Description and Uses
MES solution has been used to activate microspheres. It has also been used as a component of activating solution to activate carboxyl groups of poly lactic-co-glycolic acid (PLGA).
Safety
| Symbol(GHS) | ![]() GHS07  | 
                                    
| Signal word | Warning | 
| Hazard statements | H315-H319-H335 | 
| Precautionary statements | P261-P271-P280 | 
| Hazard Codes | Xi | 
| Risk Statements | 36/37/38 | 
| Safety Statements | 26-36-24/25-22 | 
| WGK Germany | 1 | 
| RTECS | QE9104530 | 
| HS Code | 29349990 | 






