| Customization: | Available |
|---|---|
| CAS No.: | 13076-17-0 |
| Formula: | 13076-17-0 |
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Specification for D(+)-LACTIDE
| Item | Standard | Results |
| Appearance | White crystals | White crystals |
| Melting point(ºC) | 96-99 | 97 |
| Water content,% | ≤0.4 | 0.12 |
| Heavy metal content(ppm) | ≤5 | ≤5 |
| Free acid | ≤0.1 | 0.056 |
| Ash,% | ≤0.05 | 0.035 |
| Purity,% | ≥99.5 | ≥99.5 |
| Optical rotation ( 25 ° C) | 260~265° | 262° |
| Conclusion | Qualified | |
Usage for D(+)-LACTIDE
D-lactide is used as a polymerization monomer and is mainly used for homopolymerization to obtain D-polylactic acid. The homopolymer has optical activity, good stereoregularity, certain crystallinity and melting point, and good mechanical strength. Therefore, in the medical field, PLLA is used to process orthopedic load-bearing bodies such as bone screws.
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