Description

L(+)-Lactic Acid CAS NO 79-33-4 is the naturally occurring, biologically active enantiomer of lactic acid, a fundamental α-hydroxy acid (AHA). This high-purity chiral compound is essential for applications requiring specific stereochemistry, offering superior biocompatibility and metabolic relevance compared to its racemic or D(-) counterparts. It is a critical raw material for the pharmaceutical, food & beverage, cosmetic, and biodegradable polymer industries, where its purity and optical activity directly impact product efficacy and regulatory compliance.

Application

• Pharmaceutical Intermediate: Key starting material for synthesizing chiral drugs, intravenous solutions, and topical medications.
• Food & Beverage Additive: Used as a natural acidulant, pH regulator, flavor enhancer, and microbial inhibitor (E270) in baked goods, beverages, and dairy products.
• Cosmetic & Personal Care: Active ingredient in anti-aging skincare formulations for its gentle exfoliating and moisturizing properties.
• Biodegradable Polymers: Monomer for the production of Polylactic Acid (PLA), a sustainable bioplastic for packaging, textiles, and medical devices.
• Industrial Applications: Employed in metal cleaning, electroplating, and as a descaling agent due to its chelating properties.
• Animal Feed & Agriculture: Acts as a feed preservative and acidifier to promote gut health in livestock.

Basic Information

Product Name	L(+)-Lactic Acid
CAS No.	79-33-4
Molecular Formula	C3H6O3
Molecular Weight	90.08 g/mol
Synonyms	(S)-2-Hydroxypropanoic acid; (S)-Lactic acid; L-Lactic acid; (+)-Lactic acid; Sarcolactic acid; Food additive E270; 2-Hydroxypropionic acid (L-form); (S)-(+)-Lactic acid; Muscle lactic acid
EINECS	201-196-2

Quality Control

Our L(+)-Lactic Acid is manufactured under strict quality management systems. We offer grades compliant with FCC (Food Chemicals Codex), USP (United States Pharmacopeia), and Pharmaceutical standards, ensuring suitability for sensitive applications. Every batch is supported by a comprehensive Certificate of Analysis (COA) verifying identity, purity (assay), optical rotation, and impurity profiles. Certificates for REACH, FDA, and Kosher/Halal compliance are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); keep container tightly sealed when not in use to prevent absorption of atmospheric moisture. Keep away from strong bases, oxidizing agents, and excessive heat.

Specification

Item	Specification
Appearance	Colorless to pale yellow syrupy liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 88.0 % (w/w)
Optical Rotation [α]20/D	+13.5° to +15.5°
Water Content (KF)	≤ 12.0 %
Chloride (Cl)	≤ 0.1 %
Sulfate (SO4)	≤ 0.25 %
Heavy Metals (as Pb)	≤ 10 ppm
Iron (Fe)	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.