Welcome to LookChem.com Sign In|Join Free
  • or


Post Buying Request

50-21-5 Suppliers

Recommended suppliersmore

Product FOB Price Min.Order Supply Ability Supplier
Lactic Acid
Cas No: 50-21-5
No Data No Data Metric Ton/Day Shanghai Ingredients Technology Co., Ltd. Contact Supplier
calcium lactate food/feed grade
Cas No: 50-21-5
No Data 5 Metric Ton 1000 Metric Ton/Year QINGDAO TAOSIGN INTERNATIONAL TRADE CO.,LIMITED Contact Supplier
Top purity DL-Lactic acid with high quality and best price cas:50-21-5
Cas No: 50-21-5
USD $ 3.0-10.0 / Kilogram 1 Kilogram 99999 Kilogram/Year Hangzhou Dingyan Chem Co., Ltd Contact Supplier
High quality Dl(+)-Lactic Acid supplier in China
Cas No: 50-21-5
No Data No Data No Data Simagchem Corporation Contact Supplier
Lactic acid
Cas No: 50-21-5
No Data No Data Metric Ton/Day ORCHID CHEMICAL SUPPLIES LTD Contact Supplier
Lactic acid
Cas No: 50-21-5
No Data 1 Kilogram 1-100 Metric Ton/Month Hangzhou Dayangchem Co., Ltd. Contact Supplier
2-hydroxypropanoic acid/factory/best price CAS NO.50-21-5
Cas No: 50-21-5
No Data 1 Metric Ton 2000 Metric Ton/Day Crovell Biotech (Hebei) Co., Ltd. Contact Supplier
DL-Lactic acid
Cas No: 50-21-5
USD $ 1.0-1.0 / Metric Ton 5 Metric Ton 200 Metric Ton/Day Henan Sinotech Import&Export Corporation Contact Supplier
Cas No: 50-21-5
USD $ 150.0-380.0 / Gram 5 Gram 100000 Gram/Day Chengdu Yanxi Import & Export Trading CO.,LTD Contact Supplier
2-hydroxypropanoic acid/factory/best price
Cas No: 50-21-5
No Data 10 Gram 200 Kilogram/Month Hubei Jusheng Technology Co., Ltd., Contact Supplier

50-21-5 Usage


Prostaglandin E1 analogue

Health Hazard

Inhalation of mist causes coughing and irritation of mucous membranes. Ingestion, even of diluted preparations, has a corrosive effect on the esophagus and stomach. Contact with more concentrated solutions can cause severe burns of skin or eye.

Chemical Properties

Lactic acid, CH3CHOHCOOH, also known as 2-hydroxypropanoic acid, is a hygroscopic liquid that exists in three isometric forms. I-lactic acid is found in blood and animal tissue as a product of glucose and glycogen metabolism. d-Iactic acid is obtained by fermentation of sucrose (corn refining), The racemic mixture is present in foods prepared by bacterial fermentation or prepared synthetically. Lactic acid is soluble in water,alcohol,and ether. It is used as a solvent, in manufacturing confectionery, and in medicine.


ChEBI: A 2-hydroxy monocarboxylic acid that is propanoic acid in which one of the alpha-hydrogens is replaced by a hydroxy group.

Air & Water Reactions

Soluble in water.

General Description

A colorless to yellow odorless syrupy liquid. Corrosive to metals and tissue. Used to make cultured dairy products, as a food preservative, and to make chemicals.

Fire Hazard

Combustible material: may burn but does not ignite readily. When heated, vapors may form explosive mixtures with air: indoors, outdoors and sewers explosion hazards. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. Runoff may pollute waterways. Substance may be transported in a molten form.

Reactivity Profile

Lactic acid is a carboxylic acid. Carboxylic acids donate hydrogen ions if a base is present to accept them. They react in this way with all bases, both organic (for example, the amines) and inorganic. Their reactions with bases, called "neutralizations", are accompanied by the evolution of substantial amounts of heat. Neutralization between an acid and a base produces water plus a salt. Carboxylic acids with six or fewer carbon atoms are freely or moderately soluble in water; those with more than six carbons are slightly soluble in water. Soluble carboxylic acid dissociate to an extent in water to yield hydrogen ions. The pH of solutions of carboxylic acids is therefore less than 7.0. Many insoluble carboxylic acids react rapidly with aqueous solutions containing a chemical base and dissolve as the neutralization generates a soluble salt. Carboxylic acids in aqueous solution and liquid or molten carboxylic acids can react with active metals to form gaseous hydrogen and a metal salt. Such reactions occur in principle for solid carboxylic acids as well, but are slow if the solid acid remains dry. Even "insoluble" carboxylic acids may absorb enough water from the air and dissolve sufficiently in Lactic acid to corrode or dissolve iron, steel, and aluminum parts and containers. Carboxylic acids, like other acids, react with cyanide salts to generate gaseous hydrogen cyanide. The reaction is slower for dry, solid carboxylic acids. Insoluble carboxylic acids react with solutions of cyanides to cause the release of gaseous hydrogen cyanide. Flammable and/or toxic gases and heat are generated by the reaction of carboxylic acids with diazo compounds, dithiocarbamates, isocyanates, mercaptans, nitrides, and sulfides. Carboxylic acids, especially in aqueous solution, also react with sulfites, nitrites, thiosulfates (to give H2S and SO3), dithionites (SO2), to generate flammable and/or toxic gases and heat. Their reaction with carbonates and bicarbonates generates a harmless gas (carbon dioxide) but still heat. Like other organic compounds, carboxylic acids can be oxidized by strong oxidizing agents and reduced by strong reducing agents. These reactions generate heat. A wide variety of products is possible. Like other acids, carboxylic acids may initiate polymerization reactions; like other acids, they often catalyze (increase the rate of) chemical reactions. Slowly corrodes most metals [USCG, 1999].

50-21-5 Well-known Company Product Price

Brand (Code)Product description CAS number Packaging Price Detail
Vetec (V900136)  Lacticacidsolution  Vetec reagent grade, 85% 50-21-5 V900136-500G 140.40CNY Detail
Sigma-Aldrich (252476)  Lacticacidsolution  ACS reagent, ≥85% 50-21-5 252476-2.5KG 2,211.30CNY Detail
Sigma-Aldrich (252476)  Lacticacidsolution  ACS reagent, ≥85% 50-21-5 252476-1KG 1,106.82CNY Detail
Sigma-Aldrich (252476)  Lacticacidsolution  ACS reagent, ≥85% 50-21-5 252476-500G 614.25CNY Detail
Sigma-Aldrich (252476)  Lacticacidsolution  ACS reagent, ≥85% 50-21-5 252476-100G 284.31CNY Detail
Sigma (L6661)  Lacticacid  meets USP testing specifications 50-21-5 L6661-500ML 1,785.42CNY Detail
Sigma (L6661)  Lacticacid  meets USP testing specifications 50-21-5 L6661-100ML 664.56CNY Detail
USP (1356734)  Lacticacid  United States Pharmacopeia (USP) Reference Standard 50-21-5 1356734-3X1.5ML 4,662.45CNY Detail
Sigma-Aldrich (PHR1215)  Lacticacid  pharmaceutical secondary standard; traceable to USP 50-21-5 PHR1215-3X1.5ML 732.19CNY Detail
Alfa Aesar (36415)  Lactic acid, ACS, 85.0-90.0% aq. soln.    50-21-5 2kg 1886.0CNY Detail
Alfa Aesar (36415)  Lactic acid, ACS, 85.0-90.0% aq. soln.    50-21-5 500g 637.0CNY Detail
Alfa Aesar (36415)  Lactic acid, ACS, 85.0-90.0% aq. soln.    50-21-5 100g 258.0CNY Detail



According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 13, 2017

Revision Date: Aug 13, 2017


1.1 GHS Product identifier

Product name 2-hydroxypropanoic acid

1.2 Other means of identification

Product number -
Other names 2-Hydroxypropionic acid

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Preservatives and Antioxidants;Processing Aids and Additives
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:50-21-5 SDS

Please post your buying leads,so that our qualified suppliers will soon contact you!

*Required Fields