What is the Lactic acid?

Lactic acid is colourless to yellow liquid, while it's Molecular Formula is C3H6O3. colourless to yellow liquid Lactic Acid is an acidulant that is a natural organic acid present in milk, meat, and beer, but is normally associated with milk. it is a syrupy liquid available as 50 and 88% aqueous solutions, and is mis-cible in water and alcohol. it is heat stable, nonvolatile, and has a smooth, milk acid taste. it functions as a flavor agent, preservative, and acidity adjuster in foods. it is used in spanish olives to prevent spoilage and provide flavor, in dry egg powder to improve disper-sion and whipping properties, in cheese spreads, and in salad dress-ing mixes.

What is the CAS number for Lactic acid?

The CAS number of Lactic acid is 50-21-5.

What is Lactic acid (50-21-5) used for?

Lactic acid (2-hydroxypropionic acid, CH3-CHOH-COOH) is the most widelyoccurring organic acid in nature. Due to its chiral a-carbon atom, lactic acid (LA)has two enantiomeric forms. Of these, L-(+)-lactic acid is more important in food and pharmaceutical industries because humans have only L-lactatedehydrogenase. The chemical behavior of lactic acid is mostly determinedby the two functional groups. Besides the acidic character in aqueousmedium, the bifunctionality (a terminal carboxylic acid and a hydroxyl group)allows lactic acid molecules to form ‘‘interesters’’ such as the cyclic dimers, thetrimers, or longer lactic acid oligomers.After its first isolation by the Swedish chemist Scheel in 1780 from sour milk,lactic acid has been produced commercially since the 1880s in the United Statesand later in Europe. Worldwide, lactic acid production was approximately250,000 metric tons per year in 2012 and is expected to reach 330,000metric tons by the year 2015, with an average price of 1.25 US$ perkilogram in 2013 (food grade, 80–85 % purity). Approximately 85 % of the demand for LA is from the food industry. Theprimary use of lactic acid is as a pH-adjusting agent in the beverage sector and as apreservative in the food industry. It is included in the Generally Recognized asSafe (GRAS) by the U.S. Food and Drug Administration [158] as a food ingredientand was deemed safe by the European Food Safety Authority as well [159]. Theacceptable daily intake for LA was defined by the Joint FAO/WHO ExpertCommittee on Food Additives as ‘‘not limited,’’ and it is also supported by theScientific Committee of Food. In recent decades, the consumption of lactic acid due to its novel applicationshas grown quite rapidly, by 19 % per year. Nonfood use of lactic acid for polymer production contributes to this growth. Biodegradable polylactic acid isconsidered to be an environmentally friendly alternative to other plastics frompetroleum. It is used in various fields, including drug delivery systems,medical devices, fibers, and packaging materials. Lactic acid can be produced via chemical synthesis or carbohydrate fermentation.The chemical route has various issues, including toxic raw materials, lowconversion rates, and especially the inability to produce the optically pure isomer.Therefore, approximately 90 % of lactic acid worldwide is produced by biotechnologicalprocesses, namely fermentations using renewable resources, whichis relatively fast, economical, and able to supply selectively one or two stereoisomersof lactic acid.InChI:InChI=1/C3H6O3/c1-2(4)3(5)6/h2,4H,1H3,(H,5,6)/p-1/t2-/m1/s1

Product classification

50-21-5

Product Name：Lactic acid
Molecular Formula：C₃H₆O₃
Purity：99%
Molecular Weight：90.0788

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Product Details;

CasNo： 50-21-5

Molecular Formula： C₃H₆O₃

Appearance： colourless to yellow liquid

Quality Manufacturer Supply Lactic acid, Offer 50-21-5 with Efficient Transportation

Description:

Chemical Formula: C3H6O3
Molecular Weight: 90.08 g/mol
Appearance: Colorless liquid or solid (crystals)
Solubility: Highly soluble in water

Data Sheet:

Chemical Name: Lactic acid
E Number: E270
CAS Number: 50-21-5
EINECS Number: 200-018-0
HS Code: 2918.12.00

Features:

Acidulant: Lactic acid is primarily used as an acidulant in the food industry. It imparts a sour taste and is commonly used to enhance the acidity and tanginess of various food and beverage products.
pH Regulation: It acts as a pH regulator, helping to adjust and control the acidity or alkalinity of food and cosmetic formulations.
Preservative: Lactic acid exhibits antimicrobial properties and can inhibit the growth of certain microorganisms, acting as a natural preservative in food products.
Flavor Enhancer: It can enhance and modify flavors, contributing to the overall taste profile of food and beverage products.
Exfoliant and Moisturizer: In the cosmetic industry, lactic acid is used as an exfoliant to remove dead skin cells and promote skin renewal. It also functions as a moisturizer and skin conditioning agent.

Product Specification Of Lactic Acid 80% food grade

Items	Standard	Result
Appearance	Oily liquid	Complies
Smell	No stimulation and no smell	Complies
Chroma	APHA	Complies
PH	4.0~6.0	Complies
Assay	80%-90%	88.3%
Chloride	≤ 0.002%	<0.002%
Sulfate	≤ 0.005%	<0.004%
Ferric salt	≤ 0.001%	<0.001%
Residue on ignition	≤ 0.1%	<0.1%
Arsenic	≤ 1 mg/kg	<1
Heavy metal	≤ 10 mg/kg	<10
Cyanide	≤ 5 mg/kg	<5

Packaging	1kg-15kg packing	2 PE bag inside + 1 foil bag outside in carton
	25kg-50kg packing	2 PE bag inside + 1 foil bag outside in drum
	Other packing	Customized packing
Drum Size	D38cm*H60cm or customized, 25 kg/ drum
Shipping	1-50kg	International Express	Fast and convenient	Door to Door
	50-500kg	Air Transportation	Fast and cheap	To Air Port
	Above 500kg	Sea Transportation	Cheap and convenient	To Port

Lactic acid(Cas 50-21-5) Usage

Description

Lactic acid is a versatile compound with widespread applications across industries due to its natural origin, diverse functionalities, and favorable regulatory status. From enhancing the flavor and stability of food products to providing skincare benefits and serving pharmaceutical formulations, lactic acid plays a crucial role in various aspects of modern life.

Chemical Properties

Lactic acid consists of a mixture of 2-hydroxypropionic acid, its condensation products, such as lactoyllactic acid and other polylactic acids, and water. It is usually in the form of the racemate, (RS)-lactic acid, but in some cases the (S)-(+)-isomer is predominant. Lactic acid is a practically odorless, colorless or slightly yellowcolored, viscous, hygroscopic, nonvolatile liquid.

Uses

Food and Beverage Industry: Lactic acid is widely used as an acidulant and flavor enhancer in various food and beverage products, including dairy products, baked goods, beverages, confectionery, and sauces.

Pharmaceutical Industry: In the pharmaceutical industry, lactic acid serves multiple purposes, including as an excipient in oral care products, a pH regulator in topical preparations, and a component in drug delivery systems.

Other Applications: Lactic acid finds applications in fermentation processes, textile and leather industries, biodegradable polymers, and as a cleaning agent.

InChI:InChI=1/C3H6O3/c1-2(4)3(5)6/h2,4H,1H3,(H,5,6)/p-1/t2-/m1/s1

50-21-5 Relevant articles

S-2-Hydroxyacylglutathione-Derivatives: Enzymatic Preparation, Purification and Characterisation

Clelland, James D.,Thornalley, Paul J.

, p. 3009 - 3016 (2007/10/02)

S-2-Hydroxyacylglutathione derivatives h...

Photosensitized NAD(P)H Regeneration Systems; Application in the Reduction of Butan-2-one, Pyruvic, and Acetoacetic Acids and in the Reductive Amination of Pyruvic and Oxoglutaric Acid to Amino Acid

Mandler, Daniel,Willner, Itamar

, p. 805 - 812 (2007/10/02)

The photosensitized formation of NAD(P)H...

Lactic acid properties, applications and production: A review

Fabio Andres Castillo Martinez a, Eduardo Marcos Balciunas a, José Manuel Salgado b, José Manuel Domínguez González b, Attilio Converti c, Ricardo Pinheiro de Souza Oliveira a

, Trends in Food Science & Technology Volume 30, Issue 1, March 2013, Pages 70-83

The worldwide demand of lactic acid in 2007 was estimated to be 130,000–150,000 metric tons per year, with commercial prices of food-grade lactic acid ranging between 1.38 US$ kg−1 (50% of purity) and 1.54 US$ kg−1 (88% of purity) (John, Nampoothiri, & Pandey, 2007).

50-21-5 Process route

: 81388-05-8
2-Hydroxy-3-(2-hydroxy-ethylsulfanyl)-propionic acid

: 50-21-5,106989-11-1,26811-96-1,31587-11-8,26100-51-6
L-(+)-lactic acid

: 50-21-5,79-33-4,598-82-3,10326-41-7,106989-11-1,26811-96-1,31587-11-8,26100-51-6
D-lactic acid

Conditions

Conditions	Yield
With nickel; In water; at 80 - 85 ℃; for 16h; Yield given. Yields of byproduct given;

: 81388-05-8
2-Hydroxy-3-(2-hydroxy-ethylsulfanyl)-propionic acid

: 50-21-5,106989-11-1,26811-96-1,31587-11-8,26100-51-6
L-(+)-lactic acid

: 50-21-5,79-33-4,598-82-3,10326-41-7,106989-11-1,26811-96-1,31587-11-8,26100-51-6
D-lactic acid

Conditions

Conditions	Yield
With nickel; In water; at 80 - 85 ℃; for 16h; Yield given. Yields of byproduct given;

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