4511-42-6
- Product Name：L-Lactide
- Molecular Formula：C6H8O4
- Purity：99%
- Molecular Weight：144.127
Product Details
pd_meltingpoint:92-94 °C(lit.)
Appearance:Crystalline flake object
Purity:99%
Cost-effective and customizable L-Lactide 4511-42-6 for sale
- Molecular Formula:C6H8O4
- Molecular Weight:144.127
- Appearance/Colour:Crystalline flake object
- Vapor Pressure:0.0028mmHg at 25°C
- Melting Point:92-94 °C(lit.)
- Refractive Index:1.4475
- Boiling Point:285.5 °C at 760 mmHg
- Flash Point:150.6 °C
- PSA：52.60000
- Density:1.186 g/cm3
- LogP:-0.13660
L-Lactide(Cas 4511-42-6) Usage
|
Flammability and Explosibility |
Nonflammable |
|
Purification Methods |
This is the cyclic dilactone of lactic acid. The (±)-cis-racemate has been distilled with b 142o/8mm; the distillate which solidifies gives yellow needles on recrystallisation from EtOH with m 128o, from Et2O with m 129o, or CHCl3 with m 126o , 1720-1740 cm-1. It hydrolyses in cold max H2O. [Carothers et al. J Am Chem Soc 54 772 1932]. A trans-form (probably RS,SR) has been reported which crystallises from Et2O with m 42-43o [Hummel et al. Acta Cryst (Sect B) 38 1679 1982]. The R,R -(+)-lactide has b 150o/2mm and crystallises from Et2O with m 95o , or m 96.5 -97.5o (from CHCl3) or m 97.7o (from EtOAc) and [] D +297o (c 1.2, *C6H6). The S,S-(-)-lactide has b 150o/2.5mm and crystallises from EtOAc with m 98.7o, or m 95o (from CHCl3) or m 96.5-97.5o (from CCl4) and []D -297o (c 1.2, *C6H6). [Toniolo et al. J Org Chem 35 6 1970, Beilstein 19 H 154, 19 I 179, 19 II 176, 19 IV 1927, 19/5 V 10.] |
InChI:InChI=1/C6H8O4/c1-3-5(7)10-4(2)6(8)9-3/h3-4H,1-2H3/t3-,4+
4511-42-6 Relevant articles
SYNTHESIS METHOD AND DEVICE FOR RAPIDLY PRODUCING LACTIDE AT HIGH YIELD
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Paragraph 0050-0114, (2021/06/26)
The invention discloses a synthesis meth...
Method for catalytically synthesizing lactide
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Paragraph 0023-0055; 0077-0080; 0085-0094; 0098-0100, (2021/01/29)
The invention discloses a method for cat...
Method for synthesizing rod-like long L-lactide crystal with high optical purity
-
Paragraph 0017-0035, (2019/01/17)
The invention discloses a method for syn...
Investigation into the Anticancer Activity and Apoptosis Induction of Brevinin-2R and Brevinin-2R-Conjugated PLA–PEG–PLA Nanoparticles and Strong Cell Cycle Arrest in AGS, HepG2 and KYSE-30 Cell Lines
Hassanvand Jamadi, Robab,Asadi, Asadollah,Yaghoubi, Hashem,Goudarzi, Fariba
, p. 1225 - 1239 (2018/10/26)
Our study aims to establish a biocompati...
4511-42-6 Process route
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1071822-17-7
(6S)-3-methylene-6-methyl-1,4-dioxane-2,5-dione
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13076-19-2,26680-10-4,26969-66-4,615-95-2
(3R,6S)-3,6-dimethyl-1,4-dioxane-2,5-dione
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4511-42-6,26680-10-4,26969-66-4,615-95-2
L,L-dilactide
| Conditions | Yield |
|---|---|
|
With
10% Pd on charcoal; hydrogen;
In
tetrahydrofuran;
at 20 ℃;
for 18h;
under 21446.5 Torr;
optical yield given as %de;
Autoclave;
|
-
-
849585-22-4,106989-11-1,26811-96-1,31587-11-8,26100-51-6
LACTIC ACID
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-
13076-19-2,26680-10-4,26969-66-4,615-95-2
(3R,6S)-3,6-dimethyl-1,4-dioxane-2,5-dione
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-
4511-42-6,26680-10-4,26969-66-4,615-95-2
L,L-dilactide
| Conditions | Yield |
|---|---|
|
LACTIC ACID;
at 70 ℃;
under 60.006 Torr;
With
tin(II) octanoate;
at 70 - 250 ℃;
under 7.50075 - 15.0015 Torr;
|
4511-42-6 Upstream products
-
923-17-1
(S,S)-2-[(2-hydroxypropanoyl)oxy]propanoic acid
-
79-33-4
L-Lactic acid
-
620627-85-2
sec-phenethyl O-lactoyllactate
-
547-64-8
methyl lactate
4511-42-6 Downstream products
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620627-85-2
sec-phenethyl O-lactoyllactate
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27871-49-4
(S)-Methyl lactate
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-
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-
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