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L-Lactide CAS:4511-42-6

Name: L-Lactide CAS:4511-42-6
Brand: Orient
SKU: pr2512292625
Price: 4 USD
Availability: InStock

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CAS No.:

4511-42-6

Grade:

Industrail Grade

Content:

99%

Port:

SHANGHAI

Brand:

Orient

Packaging:

1KG, 5KG, 25KG

Price valid (until):

2026-01-29

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Qingdao Orient Chemical Co.,LTD

Company Type:

Trader

Location:

China

Qualification:

Main Products:

pharmaceutical intermediates,peptides,electronic chemicals

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Product Description
Seller Information
Inquiry History

Description

Product Name:	L-Lactide
Synonyms:	L-3,6-Dimethyl-1,4-dioxane-2,5-dione;1,4-Dioxane-2,5-dione, 3,6-dimethyl-, (3S,6S)-;3,6-dimethyl-1,4-dioxane-2,5-quinone;actide;L-(-)-LACTIDE 98+%;3,6-Dimethyl-2,5-p-dioxanedione;L-(-)-Lactide ,99%;L,L-Dilactide
CAS:	4511-42-6
MF:	C6H8O4
MW:	144.13
EINECS:	224-832-0
Product Categories:	Chiral Building Blocks;Dioxanes;Dioxanes & Dioxolanes;Functional Materials;Glycidyl Compounds, etc. (Chiral);Lactones & Lactides (for High-Performance Polymer Research);Reagent for High-Performance Polymer Research;Synthetic Organic Chemistry;4511-42-6
Mol File:	4511-42-6.mol

L-Lactide Chemical Properties

Melting point	92-94 °C(lit.)
Boiling point	255°C
density	1.186±0.06 g/cm3(Predicted)
vapor pressure	0.311Pa at 25℃
refractive index	1.4475
storage temp.	2-8°C
solubility	Soluble in chloroform, and methanol. Slightly soluble in benzene.
form	Solid
color	White to Off-White
Optical Rotation	[α]20/D 285°, c = 1 in toluene
Water Solubility	16.7g/L at 20℃
Sensitive	Moisture Sensitive
BRN	82124
Stability:	Hygroscopic
InChIKey	JJTUDXZGHPGLLC-IMJSIDKUSA-N
LogP	0.4 at 25℃
CAS DataBase Reference	4511-42-6(CAS DataBase Reference)
EPA Substance Registry System	1,4-Dioxane-2,5-dione, 3,6-dimethyl-, (3S,6S)- (4511-42-6)

Safety Information

Hazard Codes	Xi
Risk Statements	36/37/38-36
Safety Statements	26-37/39
WGK Germany	3
TSCA	Yes
HS Code	29322090

MSDS Information

L-Lactide Usage And Synthesis

Description	L-lactide (3,6-dimethyl-1,4-dioxane-2,5-dione) is a cyclic lactone that is derived from lactic acid. It has the molecular formula C3H6O2 and is an essential building block for synthesizing polylactic acid (PLA) plastics, which are widely used in the manufacturing industry.
Chemical Properties	White crystal
Uses	(3S)-cis-3,6-Dimethyl-1,4-dioxane-2,5-dione may be used in the synthesis of optically active terpyridine containing poly(L-lactide)s, polydisperse lactic acid oligomers, bicyclic and tricyclic lactide derivatives.
Application	L-Lactide is a monomer used to produce polylactic acid (PLA), which is a biodegradable thermoplastic that has many uses in the pharmaceutical industry. Additionally, L-Lactide can be used to modify existing drug carriers or create new ones from scratch. As such, the pharmaceutical industry relies heavily on L-Lactide for its versatile applications.
Flammability and Explosibility	Non flammable
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.]

First aid measures

If inhaled

Move the victim into fresh air. If breathing is difficult, give oxygen. If not breathing, give artificial respiration and consult a doctor immediately. Do not use mouth to mouth resuscitation if the victim ingested or inhaled the chemical.

Following skin contact

Take off contaminated clothing immediately. Wash off with soap and plenty of water. Consult a doctor.

Following eye contact

Rinse with pure water for at least 15 minutes. Consult a doctor.

Following ingestion

Rinse mouth with water. Do not induce vomiting. Never give anything by mouth to an unconscious person. Call a doctor or Poison Control Center immediately.

Accidental release measures

Personal precautions, protective equipment and emergency procedures

Avoid dust formation. Avoid breathing mist, gas or vapours.Avoid contacting with skin and eye. Use personal protective equipment.Wear chemical impermeable gloves. Ensure adequate ventilation.Remove all sources of ignition. Evacuate personnel to safe areas.Keep people away from and upwind of spill/leak. Environmental precautions

Prevent further spillage or leakage if it is safe to do so. Do not let the chemical enter drains. Discharge into the environment must be avoided. Methods and materials for containment and cleaning up

Collect and arrange disposal. Keep the chemical in suitable and closed containers for disposal. Remove all sources of ignition. Use spark-proof tools and explosion-proof equipment. Adhered or collected material should be promptly disposed of, in accordance with appropriate laws and regulations.

Firefighting measures

Extinguishing media

Use dry chemical, carbon dioxide or alcohol-resistant foam.

Specific Hazards Arising from the Chemical

no data available

Advice for firefighters

Wear self-contained breathing apparatus for firefighting if necessary.

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—— Q&A ——

Q1:Do you provide sample?

A: Yes, we can provide free sample, you only need pay the shipping cost.

Q2: What is the lead time?

A: For stock goods, it usually take about 5-7 days by air, 15-30 days by sea,For customized products, the delivery time needs to be confirmed based on the actual situation.

Q3: How can I buy? What is the payment method?

A: You can contract us through Email or you can browse our website:orientchem.cc, we have bank transfer,

Q4:What if there are quality issues？

A：We attach great importance to after-sales service of our products. If there are any quality issues, please contact us within 30 days of receiving the goods and we will handle returns and exchanges for you.

Certificates

Basic Info

Product Name:

L-Lactide

Other Name:

1,4-Dioxane-2,5-dione,3,6-dimethyl-,(3S,6S)-;p-Dioxane-2,5-dione,3,6-dimethyl-,L-;1,4-Dioxane-2,5-dione,3,6-dimethyl-,(3S-cis)-;(3S,6S)-3,6-Dimethyl-1,4-dioxane-2,5-dione;L-Lactide;(S,S)-3,6-Dimethyl-1,4-dioxane-2,5-dione;L,L-Dilactide;L-(-)-Lactide;L-Dilactide;(-)-L-Dilactide;LL-Lactide;1,4-Dioxane-2,5-dione,3,6-dimethyl-,(3S,5S)-;Purasorb L;Scolat AL;Puralact B 3;PuraLact L;Purac TL;Lumilact L;Esun LA 99;13167-47-0;17699-81-9;22061-81-0;25151-34-2

CAS No.:

4511-42-6

Molecular Formula:

C6H8O4

InChIKeys:

InChIKey=JJTUDXZGHPGLLC-IMJSIDKUSA-N

Molecular Weight:

144.13

Exact Mass:

144.13

EC Number:

608-832-1

UNII:

IJ13TO4NO1

DSSTox ID:

DTXSID5049655

HScode:

2934999090

Categories:

Bulk Drug Intermediates

Characteristics

PSA:

52.6

XLogP3:

0.6

Appearance:

White crystalline solide

Density:

1.2±0.1 g/cm3

Melting Point:

95-96 °C

Boiling Point:

285.5°C at 760 mmHg

Flash Point:

150.6±18.8 °C

Refractive Index:

1.429

See More L-Lactide Properties 

Hazard Identification

Classification of the substance or mixture

Eye irritation, Category 2

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	Warning
Hazard statement(s)	H319 Causes serious eye irritation
Prevention	P264 Wash ... thoroughly after handling. P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
Response	P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Storage	none
Disposal	none

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.

See More L-Lactide Safety Data Sheet 

Seller Information

Business Type:
Trader

Main Products:
pharmaceutical intermediates,peptides,electronic chemicals

Location:
Room 102, 1st Floor, East Office Building, No. 45 Pengwan Road, Qianwan Bonded Port Area, Qingdao Zone, China (Shandong) Pilot Free Trade Zone

Payment Terms:
100% TT in advance

Average lead Time:
10

Total Annual Revenue:
$10 million-$25 million

Total Employees:
51-100

Year of Establishment:
2024

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We are mainly specilized in supply of pharmaceutical intermediates, electronic chemicals，food additives, and other fine chemical products.
Integrity is the foundation, quality is life. We would like to work together with you to build a greener and brighter future.

Website: orientchem.cc
Email: scarlett@orientchem.cc
WhatsApp: +86 17753254221

Inquiry History

4 Inquiries

Country	Product	Purchase Quantity	Date Posted
China	L-Lactide	1 TON	Aug 15, 2024
Italy	High quality L-Lactide	200 KG	Nov 28, 2025
Germany	L-Lactide	1 KG	Mar 18, 2025
Israel	L-Lactide	1 MT	Feb 15, 2025

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