303143

3,6-Dimethyl-1,4-dioxane-2,5-dione

99%

• 동의어(들): DL-Lactide, rac-Lactide, Lactide
• 실험식(Hill 표기법): C₆H₈O₄
• CAS Number: 95-96-5
• Molecular Weight: 144.13
• EC Number: 202-468-3
• MDL number: MFCD00011685
• UNSPSC 코드: 12352100
• PubChem Substance ID: 24858300
• NACRES: NA.22

속성

• Quality Level: 200
• 분석: 99%
• 양식: crystals
• bp: 142 °C/8 mmHg (lit.)
• mp: 116-119 °C
• 작용기: ester
• 저장 온도: 2-8°C
• SMILES string: CC1OC(=O)C(C)OC1=O
• InChI: 1S/C6H8O4/c1-3-5(7)10-4(2)6(8)9-3/h3-4H,1-2H3
• InChI key: JJTUDXZGHPGLLC-UHFFFAOYSA-N

설명

일반 설명

3,6-Dimethyl-1,4-dioxane-2,5-dione (or rac-lactide), is the 50:50 racemic mixture of D- and L-Lactide. Rac-lactide is a lactone derived from lactic acid that has attracted great interest in academia and commercial applications, as it is derived from abundant renewable resources. Rac-lactide can be ready polymerized via ring-opening polymerization, using a variety of metal or organocatalysts, yielding poly(D,L-lactide). While the resulting polymer is generally amorphous, the use of stereospecific catalysts can lead to heterotactic PLA, which exhibits some degree of crystallinity.

애플리케이션

3,6-Dimethyl-1,4-dioxane-2,5-dione can be used as a reactant:

• To synthesize multi-block copolymers of polylactide and polycarbonate.
• In the aluminum-catalyzed polymerization of propene oxide, lactide, and phthalic anhydride to produce multi-block polyesters.

안전성 정보

• 픽토그램: GHS07
• 신호어: Warning
• 유해 및 위험 성명서: H319
• 예방조치 성명서: P264 - P280 - P305 + P351 + P338 - P337 + P313
• Hazard Classifications: Eye Irrit. 2
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 2
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable
• 개인 보호 장비: dust mask type N95 (US), Eyeshields, Gloves