PRODUCT Properties
| Melting point: | 165-168 °C (lit.) | 
                                    
| Boiling point: | 268°C | 
                                    
| Density | 1.573 g/mL at 25 °C (lit.) | 
                                    
| vapor pressure | 0.0000115 Pa (20 °C) | 
                                    
| refractive index | 1.4980 (estimate) | 
                                    
| Flash point: | 268°C | 
                                    
| storage temp. | Store below +30°C. | 
                                    
| solubility | 77.49g/l | 
                                    
| pka | 3.85(at 25℃) | 
                                    
| form | Crystalline Powder or Crystals | 
                                    
| Specific Gravity | 1.573 | 
                                    
| color | White to light beige | 
                                    
| PH | 3.5(1 mM solution);2.95(10 mM solution);2.43(100 mM solution); | 
                                    
| Odor | Characteristic Odor | 
                                    
| Water Solubility | Soluble in water, acetone, methanol, hexane and ethanol. Slightly soluble in benzene, chloroform, carbon disulfide and petroleum ether. | 
                                    
| Sensitive | Hygroscopic | 
                                    
| Merck | 14,5242 | 
                                    
| BRN | 1759501 | 
                                    
| Stability: | Light Sensitive | 
                                    
| InChIKey | LVHBHZANLOWSRM-UHFFFAOYSA-N | 
                                    
| LogP | -0.301 at 20℃ | 
                                    
| CAS DataBase Reference | 97-65-4(CAS DataBase Reference) | 
                                    
| NIST Chemistry Reference | Butanedioic acid, methylene-(97-65-4) | 
                                    
| EPA Substance Registry System | Itaconic acid (97-65-4) | 
                                    
| CAS Number Unlabeled | 97-65-4 | 
                                    
Description and Uses
The major uses for itaconic acid are in copolymerizations, resins, plasticizers, and as lube oil additives.
Safety
| Symbol(GHS) | ![]() GHS05  | 
                                    
| Signal word | Danger | 
| Hazard statements | H318 | 
| Precautionary statements | P280-P305+P351+P338+P310 | 
| Hazard Codes | Xi | 
| Risk Statements | 36/37/38 | 
| Safety Statements | 26-36 | 
| WGK Germany | 1 | 
| Autoignition Temperature | 430 °C | 
| TSCA | Yes | 
| HS Code | 29171990 | 
| Hazardous Substances Data | 97-65-4(Hazardous Substances Data) | 
| Toxicity | LD50 orally in Rabbit: > 2000 mg/kg | 



