L-Lactide CAS#4511-42-6
High-Purity Building Block – L-lactide is a key monomer derived from lactic acid, essential for polymer synthesis.
PLA Production – Serves as the primary raw material for manufacturing polylactic acid (PLA) plastics.
Versatile Industrial Applications – PLA produced from L-lactide is widely used across the manufacturing sector.
Sustainable Origin – Derived from renewable lactic acid, supporting environmentally friendly plastic production.
L-lactide (3,6-dimethyl-1,4-dioxane-2,5-dione) is a cyclic lactone derived from lactic acid, with the molecular formula C3H6O2. It serves as a crucial building block for the synthesis of polylactic acid (PLA) plastics, which are extensively used in various manufacturing applications.
L-Lactide Chemical Properties
Melting point | 92-94 °C(lit.) |
Boiling point | 255°C |
Density | 1.186±0.06 g/cm3(Predicted) |
Vapor pressure | 0.311Pa at 25℃ |
Refractive index | 1.4475 |
Storage temp | 2-8°C |
Solubility | Soluble in chloroform, and methanol. Slightly soluble in benzene. |
Form | Solid |
Color | White to Off-White |
Optical Rotation | [α]20/D 285°, c = 1 in toluene |
Water Solubility | 16.7g/L at 20℃ |
Sensitive | Moisture Sensitive |
BRN | 82124 |
Stability | Hygroscopic |
InChIKey | JJTUDXZGHPGLLC-IMJSIDKUSA-N |
LogP | 0.4 at 25℃ |
CAS DataBase Reference | 4511-42-6(CAS DataBase Reference) |
EPA Substance Registry System | 1,4-Dioxane-2,5-dione, 3,6-dimethyl-, (3S,6S)- (4511-42-6) |
Safety Information
Hazard Codes | Xi |
Risk Statements | 36/37/38-36 |
Safety Statements | 26-37/39 |
WGK Germany | 3 |
TSCA | Yes |
HS Code | 29322090 |
L-Lactide is a monomer used in the production of polylactic acid (PLA), a biodegradable thermoplastic with numerous applications in the pharmaceutical industry. It can also be used to modify existing drug carriers or to develop new ones from scratch, making L-Lactide a highly versatile and essential material for pharmaceutical applications.




