CAS No.4511-42-6,L-Lactide Suppliers,MSDS download

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Basic Information

Molecular Structure:
CAS No.:	4511-42-6
Name:	L-Lactide
Article Data:	36

Formula:	C₆H₈O₄
Molecular Weight:	144.127
Synonyms:	1,4-Dioxane-2,5-dione,3,6-dimethyl-, (3S-cis)-;p-Dioxane-2,5-dione, 3,6-dimethyl-, L- (8CI);(-)-L-Dilactide;(3S,6S)-3,6-Dimethyl-1,4-dioxane-2,5-dione;(S,S)-3,6-Dimethyl-1,4-dioxane-2,5-dione;1,4-Dioxane-2,5-dione, 3,6-dimethyl-,(3S,5S)-;L,L-Dilactide;L-(-)-Lactide;L-Dilactide;Purasorb L;
EINECS:	224-832-0
Density:	1.186 g/cm³
Melting Point:	92-94 °C(lit.)
Boiling Point:	285.5 °C at 760 mmHg
Flash Point:	150.6 °C
Solubility:	16.7g/L at 20℃
Appearance:	Crystalline flake object
Hazard Symbols:	Xi
Risk Codes:	36/37/38
Safety:	26-37/39
PSA:	52.60000
LogP:	-0.13660

Synthetic route

Reaxys ID: 11369849: Reaxys ID: 11369849

: 4511-42-6
L,L-dilactide

Conditions

Conditions	Yield
at 60 - 320℃; for 0.35 - 0.433333h; Product distribution / selectivity; Pyrolysis;	100%
at 280℃; for 2h; Product distribution / selectivity; Pyrolysis;	95.3%

Reaxys ID: 11385251: Reaxys ID: 11385251

: 4511-42-6
L,L-dilactide

Conditions

Conditions	Yield
tin octylate at 200℃; under 5 Torr; Product distribution / selectivity;	99.3%
at 200℃; under 5 Torr; Product distribution / selectivity;	99.3%
at 200℃; under 5 Torr; Product distribution / selectivity;
at 200℃; under 5 Torr; Product distribution / selectivity;
at 210℃; under 4 Torr; Product distribution / selectivity;

: stannous lactate

: 4511-42-6
L,L-dilactide

Conditions

Conditions	Yield
With benzylurea at 100 - 180℃; under 1 Torr; for 2h; Temperature; Reagent/catalyst; Pressure;	96.72%

: 79-33-4
L-Lactic acid

: 4511-42-6
L,L-dilactide

Conditions

Conditions	Yield
In water at 240℃; under 760.051 Torr; Inert atmosphere; Autoclave;	94%
Stage #1: L-Lactic acid With 1-docosanol; 3-chloropyridinium trifluoromethanesulfonate at 140℃; under 25 Torr; for 12h; Stage #2: at 160℃; under 1 Torr; for 3h; Reagent/catalyst; Pressure; Temperature; Time;	80%
Stage #1: L-Lactic acid With 1-docosanol; 3-chloropyridinium trifluoromethanesulfonate In water at 140℃; under 30.003 Torr; for 12h; Stage #2: In water at 160℃; under 0.99985 Torr; for 3h; Reagent/catalyst;	79%

: 687-47-8
(S)-Ethyl lactate

: 4511-42-6
L,L-dilactide

Conditions

Conditions	Yield
titanium(IV) tetraethanolate; Triethylene glycol dimethyl ether at 120℃; under 50 Torr; for 7.5h; Inert atmosphere;	85.5%
Stage #1: (S)-Ethyl lactate With cerium(III) chloride heptahydrate In water Inert atmosphere; Stage #2: for 4h; Reagent/catalyst;	52%
With Triethylene glycol dimethyl ether; titanium(IV) tetraethanolate at 120℃; for 6h; Product distribution / selectivity;

: 79-33-4
L-Lactic acid

: 661-19-8
1-docosanol

A: 908335-80-8
2-docosene

B: methyl 2-docosyloxypropionate

C: 4511-42-6
L,L-dilactide

Conditions

Conditions	Yield
Stage #1: L-Lactic acid; 1-docosanol With 3-chloropyridinium trifluoromethanesulfonate at 140℃; under 25 Torr; for 12h; Stage #2: at 160℃; under 1 Torr; for 3h; Stage #3: With methanol; potassium carbonate Reagent/catalyst; Pressure; Temperature; Time;	A n/a B n/a C 80%

...Expand

: 79-33-4
L-Lactic acid

: 2216-51-5
(-)-menthol

A: 923031-01-0
L-menthyl L-lactoyl L-lactate

B: 923031-02-1
L-menthyl L-lactoyl L-lactoyl L-lactate

C: 61597-98-6
(1R,2S,5R)-menthyl (S)-(-)-lactate

D: 4511-42-6
L,L-dilactide

Conditions

Conditions	Yield
In n-heptane; water at 128℃; for 32h; Product distribution / selectivity; Heating / reflux;	A 24.6% B 0.4% C 67.7% D 0.6%
sulfuric acid In n-heptane at 119℃; for 2h; Product distribution / selectivity;	A 32.2% B 1.9% C 57.6% D 0.4%
sodium hydrogen sulfate In n-heptane at 93 - 123℃; for 17h; Product distribution / selectivity; Heating / reflux;	A 36.5% B 5.6% C 48.7% D 4.8%

...Expand

Reaxys ID: 11369848: Reaxys ID: 11369848

A: hexalactide

B: 859046-55-2
trilactide

C: C12H16O8

D: 859046-57-4
C15H20O10

E: C21H28O14

F: 13076-19-2
(3R,6S)-3,6-dimethyl-1,4-dioxane-2,5-dione

G: 4511-42-6
L,L-dilactide

H: 13076-17-0
D-lactide

Conditions

Conditions	Yield
at 60 - 400℃; for 0.566667h; Product distribution / selectivity; Pyrolysis;	A 4.51% B 3.26% C 5.59% D 6.02% E 1.88% F 18.28% G n/a H n/a

...Expand

Reaxys ID: 11369849: Reaxys ID: 11369849

A: hexalactide

B: 859046-55-2
trilactide

C: C12H16O8

D: 859046-57-4
C15H20O10

E: 13076-19-2
(3R,6S)-3,6-dimethyl-1,4-dioxane-2,5-dione

F: 4511-42-6
L,L-dilactide

G: 13076-17-0
D-lactide

Conditions

Conditions	Yield
at 60 - 400℃; for 0.566667h; Product distribution / selectivity; Pyrolysis;	A 0.46% B 0.5% C 1.65% D 0.75% E 12.17% F n/a G n/a

...Expand

: 547-64-8
methyl lactate

A: 67-56-1
methanol

B DP2: DP2

C DP3: DP3

D DP4: DP4

E: 4511-42-6
L,L-dilactide

Conditions

Conditions	Yield
Amberlys 36 resin at 104 - 115℃; under 25 - 80 Torr; for 28h; Heating / reflux;	A n/a B 7.4% C 0.3% D 0% E 0%

...Expand

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Specification

The CAS registry number of 1,4-Dioxane-2,5-dione,3,6-dimethyl-,(3S,6S)- is 4511-42-6. The systematic name is (3S,6S)-3,6-dimethyl-1,4-dioxane-2,5-dione. Its EINECS registry number is 224-832-0. In addition, the molecular formula is C₆H₈O₄ and the molecular weight is 144.13. It belongs to the classes of Chiral Building Blocks; Dioxanes; Dioxanes Dioxolanes; Functional Materials; Glycidyl Compounds; Lactones Lactides (for High-Performance Polymer Research); Reagent for High-Performance Polymer Research; Synthetic Organic Chemistry. And it should be stored in a cool and dry place.

Physical properties about 1,4-Dioxane-2,5-dione,3,6-dimethyl-,(3S,6S)- are: (1)ACD/BCF (pH 5.5): 1; (2)ACD/BCF (pH 7.4): 1; (3)ACD/KOC (pH 5.5): 4.003; (4)ACD/KOC (pH 7.4): 4.003; (5)#H bond acceptors: 4; (6)Polar Surface Area: 52.6 Å²; (7)Index of Refraction: 1.429; (8)Molar Refractivity: 31.335 cm³; (9)Molar Volume: 121.519 cm³; (10)Polarizability: 12.422 ×10^-24cm³; (11)Surface Tension: 31.383 dyne/cm; (12)Density: 1.186 g/cm³; (13)Flash Point: 150.578 °C; (14)Enthalpy of Vaporization: 52.452 kJ/mol; (15)Boiling Point: 285.469 °C at 760 mmHg; (16)Vapour Pressure: 0.003 mmHg at 25°C.

When you are using this chemical, please be cautious about it as the following:
It is irritating to eyes, respiratory system and skin. When you are using it, wear suitable protective clothing and eye/face protection. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
(1)SMILES: C[C@H]1C(=O)O[C@H](C(=O)O1)C
(2)InChI: InChI=1/C6H8O4/c1-3-5(7)10-4(2)6(8)9-3/h3-4H,1-2H3/t3-,4-/m0/s1
(3)InChIKey: JJTUDXZGHPGLLC-IMJSIDKUBG