303143

Sigma-Aldrich

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

99%

Synonym(s):
Lactide
Empirical Formula (Hill Notation):
C6H8O4
CAS Number:
Molecular Weight:
144.13
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22
Pricing and availability is not currently available.

Quality Level

assay

99%

form

crystals

bp

142 °C/8 mmHg (lit.)

mp

116-119 °C

storage temp.

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

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General description

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.

Packaging

100 g in poly bottle
25 g in glass bottle

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Precautionary Statements

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

RIDADR

NONH for all modes of transport

WGK Germany

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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