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L-Lactide

Also known as: L-(-)-Lactide, L,L-Dilactide, L-(-)-Dilactide, LL-Lactide, (3S,6S)-(-)-3,6-Dimethyl-1,4-dioxane-2,5-dione, (3S)-cis-3,6-Dimethyl-1,4-dioxane-2,5-dione, 3,6-Dimethyl-1,4-dioxane-2,5-dione, 3,6-Dimethyl-2,5-p-dioxanedione, 1,4-Dioxane-2,5-dione, 3,6-dimethyl-, (3S,6S)-

L-Lactide (CAS 4511-42-6) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C6H8O4 and a molecular weight of 144.125 g/mol. Key properties include a melting point of 92-98ºC, a boiling point of 285.5±15.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 150.6±18.8 °C. It is classified under GHS with signal word Warning and hazard statements H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4511-42-6
Jingsj CID
J-1078822-8
Molecular Formula
C6H8O4
Molecular Weight
144.125 g/mol
Category
Esters
Last updated
8/21/2026

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Physicochemical Properties

Melting Point92-98ºC
Boiling Point285.5±15.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point150.6±18.8 °C
Exact Mass144.042252
PSA52.60000
LogP-1.45
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.429

GHS Safety & Compliance

IrritantSignal word: Warning
  • H319 — Causes serious eye irritation

Customs & Trade Information

HS Code2934999090
Summary2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of L-Lactide?

The CAS number of L-Lactide is 4511-42-6.

What are the molecular formula and molecular weight of L-Lactide?

L-Lactide has molecular formula C6H8O4 and molecular weight 144.125 g/mol.

Is L-Lactide hazardous?

L-Lactide has GHS signal word Warning and hazard statements H319 — Causes serious eye irritation.

What are the upstream and downstream products of L-Lactide?

For L-Lactide, Upstream Products: L-Lactic acid, (3R,6R)-3,6-dimethyl-1,4-dioxane-2,5-dione; Downstream Products: ethyl (2R)-2-hydroxypropanoate.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "L-Lactide (CAS 4511-42-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1078822-8 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.