L(-)-乳酸乙酯

Description

Ethyl L(-)-lactate · CAS 687-47-8 · C5H10O3. UNII F3P750VW8I. Boiling Point: 309 °F at 760 mmHg (USCG, 1999); Boiling Point: 154 °C; Boiling Point: 154.00 °C. @ 760.00 mm Hg.

Identification

CAS Registry Number	687-47-8
PubChem CID	7344
Molecular formula	C5H10O3
IUPAC name	ethyl 2-hydroxypropanoate
UNII (FDA)	F3P750VW8I
FEMA number	2440
JECFA number	931

Computed Descriptors

Molecular Weight	118.13
XLogP3	0.2
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	3
Rotatable Bond Count	3
Exact Mass	118.062994177
Monoisotopic Mass	118.062994177
Topological Polar Surface Area	46.5
Heavy Atom Count	8
Formal Charge	0

Physical & Chemical Properties

Boiling Point	309 °F at 760 mmHg (USCG, 1999)
Boiling Point	154 °C
Boiling Point	154.00 °C. @ 760.00 mm Hg
Boiling Point	309 °F
Boiling Point	154 °C @760 [mm Hg]
Melting Point	-26 °C
Melting Point	-26.00 °C. @ 760.00 mm Hg
Melting Point	25 °C
Flash Point	115 °F (USCG, 1999)
Flash Point	46 °C

Physical description & handling notes

• Ethyl lactate appears as a clear colorless liquid with a mild odor. Flash point 115 °F. Denser than water and soluble in water. Vapors heavier than air.
• CBI; Liquid
• Colorless liquid with characteristic odor; [Sullivan, p. 450]
• colourless liquid with a light ethereal, buttery odour
• A clear colorless liquid with a mild odor.
• Colorless liquid

Regulatory Status

Regulatory & Food Contact	EU Flavoring substances FDA Substance added to food: FLAVORING AGENT OR ADJUVANT FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS Flavoring Agents FLAVOURING_AGENTFood Additives -> CARRIER_SOLVENT: Flavouring Agent Cheese, Floral, Fruit, Pungent, Rubber
GHS notification summary	0.1% (1 / 2851)

GHS Hazard Classification

GHS notification summary	0.1% (1 / 2851)
Reported hazard statements	H226, H318, H335, H319

Documented Uses

• Used as a solvent substitute for glycol ethers in photolithography in the semiconductor manufacturing industry; used in some nail polish removers; [Sullivan, p. 450-1] Used as a solvent for resins, dyes, and coatings; has FDA approval for use as a food flavoring agent; [HSDB]
• Semiconductor Manufacturing [Category: Industry]
• Painting (Solvents) [Category: Paint]
• Plastic Composites Manufacturing [Category: Industry]
• Solvent for nitrocellulose, cellulose acetate, many cellulose ethers, resins; lacquers; paints; enamels; varnishes; stencil sheets; safety glass; flavoring.
• To reduce the alkalinity of cosmetic formulations.

Synonyms

ETHYL LACTATE; 97-64-3; Ethyl 2-hydroxypropanoate; Solactol; Actylol; Acytol; Ethyl 2-hydroxypropionate; Propanoic acid, 2-hydroxy-, ethyl ester; Lactate d'ethyle; 2-Hydroxypropanoic acid ethyl ester; Ethyl alpha-hydroxypropionate; FEMA No. 2440; Ethylester kyseliny mlecne; DTXSID6029127; F3P750VW8I; PURASOLV ELS

Frequently Asked Questions

What are the CAS number and molecular formula of Ethyl L(-)-lactate?

CAS 687-47-8; molecular formula C5H10O3; molecular weight — g/mol.

What other names is Ethyl L(-)-lactate known by?

ETHYL LACTATE, 97-64-3, Ethyl 2-hydroxypropanoate, Solactol, Actylol, Acytol.

What is the regulatory status of Ethyl L(-)-lactate?

Documented regulatory listings: EU Flavoring substances; FDA Substance added to food: FLAVORING AGENT OR ADJUVANT; FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS.

Is Ethyl L(-)-lactate classified as hazardous?

0.1% of GHS notifications report no hazard classification (1 of 2851).

What are the key physical properties of Ethyl L(-)-lactate?

Boiling Point: 309 °F at 760 mmHg (USCG, 1999); Boiling Point: 154 °C; Boiling Point: 154.00 °C. @ 760.00 mm Hg; Boiling Point: 309 °F.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.