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L-Lactide good supplier high purity L-Lactide high quality cas 4511-42-6
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Description
Lactide is the cyclic di-ester of lactic acid, i.e., 2-hydroxypropionic acid. Lactic acid cannot form a lactone as other hydroxy acids do because the hydroxy group is too close to the carboxylic group. Instead, lactic acid first forms a dimer, which is similar to a 5-hydroxyacid. The dimer contains a hydroxy group at a convenient distance from the carboxylic group for the formation of a lactone. Indeed, the dimer readily forms a six-membered cyclic diester known as lactide. Lactides may be prepared by heating lactic acid in the presence of an acid catalyst.
Properties
Appearance & Physical State: White crystalline solid
Density: 1.186 g/cm3
Melting Point: 92-98ºC
Boiling Point: 285.5ºC at 760 mmHg
Flash Point: 150.6ºC
Refractive Index: 1.4475
Safety Info
HS Code: 2934999090
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