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Malic acid

Malic acid Suppliers list
Company Name: Capot Chemical Co.,Ltd.
Tel: +86 (0)571-855 867 18
Products Intro: Product Name:DL-Malic acid
Purity:98% (Min,GC) Package:100g;1kg;5kg,10kg,25kg,50kg
Company Name: Shenzhen Sendi Biotechnology Co.Ltd.
Tel: 0755-23311925 18102838259
Products Intro: Product Name:Malic acid
Purity:99% Package:16/KG
Company Name: Henan DaKen Chemical CO.,LTD.
Tel: +86-371-55531817
Products Intro: Product Name:Malic acid
Purity:99.00% Package:100g,500g,1KG,10KG,100KG
Company Name: Henan Tianfu Chemical Co.,Ltd.
Tel: 0371-55170693
Products Intro: CAS:6915-15-7
Purity:99% Package:500G;1KG;5KG;25KG
Company Name: Shanghai Time Chemicals CO., Ltd.
Tel: +86-021-57951555
Products Intro: Product Name:DL-Malic acid

Lastest Price from Malic acid manufacturers

  • Malic acid
  • US $2.00 / KG
  • 2018-08-11
  • CAS:6915-15-7
  • Min. Order: 1KG
  • Purity: 98%
  • Supply Ability: 10000kg
Malic acid Basic information
Product Name:Malic acid
Product Categories:Food & Flavor Additives;Aliphatics;Chiral Reagents;Isotope Labelled Compounds;Building Blocks;C1 to C5;NULL;Food additive;Carbonyl Compounds;Carboxylic Acids;Chemical Synthesis;Organic Building Blocks
Mol File:6915-15-7.mol
Malic acid Structure
Malic acid Chemical Properties
Melting point 131-133 °C(lit.)
Boiling point 167.16°C (rough estimate)
density 1.609
vapor density 4.6 (vs air)
vapor pressure <0.1 mm Hg ( 20 °C)
refractive index 1.3920 (estimate)
Fp 203 °C
storage temp. 2-8°C
solubility methanol: 0.1 g/mL, clear, colorless
pka3.4(at 25℃)
form neat
PH2.3 (10g/l, H2O, 20℃)
optical activity[α]/D 0.10 to +0.10°
Water Solubility 558 g/L (20 ºC)
Merck 14,5707
BRN 1723539
CAS DataBase Reference6915-15-7(CAS DataBase Reference)
NIST Chemistry ReferenceHydroxybutanedioic acid(6915-15-7)
Safety Information
Hazard Codes Xn,Xi
Risk Statements 22-37/38-41-36/37/38-42/43-34
Safety Statements 26-39-37/39-36-36/39
WGK Germany 1
RTECS ON7175000
Autoignition Temperature644 °F
HS Code 29181980
Hazardous Substances Data6915-15-7(Hazardous Substances Data)
ToxicityLD50 orally in Rabbit: > 3200 mg/kg
MSDS Information
DL-Hydroxybutanedioic acid English
ACROS English
SigmaAldrich English
ALFA English
Malic acid Usage And Synthesis
Chemical PropertiesWhite to nearly white crystals or crystal powder
UsesMalic acid, HOOCCH(OH).CH2COOH, also known as hydroxysuccinic acid, is a colorless solid. It is soluble in water and alcohol. Malic acid exists in two optically active forms and a racemic mixture. It is used in medicine and found in apples and other fruits.
The naturally occuring isomer is the L-form which has been found in apples and many other fruits and plants. Selective α-amino protecting reagent for amino acid derivatives. Versatile synthon for the preparation of chiral compounds including κ-opioid rece
Usesmalic acid is the third smallest alpha hydroxy acid in terms of molecular size. Although it is used in numerous cosmetic products, particularly those indicating a “fruit acid” content and generally designed for anti-aging, unlike glycolic and lactic acids, its skin benefits have not been extensively studied. Some formulators consider it difficult to work with, particularly when compared to other AHAs, and it can be somewhat irritating. It is rarely used as the only AHA in a product. It is found naturally occurring in apples.
UsesMalic Acid is an acidulant that is the predominant acid in apples. it exists as white crystalline powder or granules and is considered hygroscopic. as compared to citric acid, it is slightly less soluble but is still readily soluble in water with a solubility of 132 g/100 ml at 20°c. it has a stronger apparent acid taste and has a longer taste retention than citric acid which peaks faster but does not mask the aftertaste as effectively. a quantity of 0.362–0.408 kg of malic acid is equivalent to 0.453 kg of citric acid and to 0.272–0.317 kg of fumaric acid in tartness. at temperatures above 150°c it begins to lose water very slowly to yield fumaric acid. it is used in soft drinks, dry-mix beverages, puddings, jellies, and fruit filling. it is used in hard can- dies because it has a lower melting point (129°c) than citric acid which improves the ease of incorporation.
DefinitionChEBI: A 2-hydroxydicarboxylic acid that is succinic acid in which one of the hydrogens attached to a carbon is replaced by a hydroxy group.
Biotechnological ProductionDL-malic acid as well as L-malic acid can be used in beverage, food, and animal nutrition. DL-malic acid is mainly derived from chemical synthesis, whereas L-malic acid is produced biotechnologically by enzymatic or fermentative processes.
Fumaric acid can be converted to L-malic acid using fumarases. Different microorganisms (e.g. Brevibacterium flavum, Brevibacterum ammoniagenes, and Corynebacterium species) are able to form naturally high amounts of fumarase intracellularly. For example, B. flavum has been immobilized in j-carrageenan and polyethyleneimine for whole-cell biocatalysis. A fumarase activity of 2.16 -1 at 55 C has been reported. This process has been used to produce 30 metric tons of L-malic acid per month in a continuous process with a 1,000 L column fed at a flow rate of 450 L.h-1 of 1 M sodium fumarate solution. Genetic engineering has been used to improve productivity, by which S. cerevisiae is modified to overexpress fumarase. With this method, a conversion rate of 65 mmol.g-1.h -1 has been observed.
Another possibility is the cultivation of an L-malic acid forming microorganism (e.g. Aspergillus flavus or Schizophyllum commune). The best results have been achieved by cultivation of A. flavus on glucose.Afinal product concentration of 113 g.L-1 with a yield of 1.26 mol of malic acid per mole of glucose and a productivity of 0.59 g.L-1.h-1 has been measured. Moreover, new biotechnological routes have been described using metabolically engineered S. cereviciae. In batch cultivations, concentrations up to 59 g.L-1 with a yield of 0.42 mol of malic acid per mole of glucose and a productivity of 0.19 g.L-1.h-1 have been observed.
Safety ProfileA poison by intraperitoneal route. Moderately toxic by ingestion. A skin and severe eye irritant. When heated to decomposition it emits acrid smoke and irritating fumes.
Purification MethodsCrystallise the acid from acetone, then from acetone/CCl4, or from ethyl acetate by adding pet ether (b 60-70o). Dry it at 35o under 1mm pressure to avoid formation of the anhydride. [Beilstein 3 IV 1124.]
Malic acid Preparation Products And Raw materials
Raw materialsMaleic acid
Preparation Products7-FLUORO-[1,8]NAPHTHYRIDIN-2-OL-->Coumalic acid
Tag:Malic acid(6915-15-7) Related Product Information
Diisooctyl maleate Dimethyl succinate Citric acid phosphoric acid Sunitinib Malate D(-)-Tartaric acid (METHOXYMETHYL)DIPHENYLPHOSPHINE OXIDE Ascoric Acid ACETIC ACID Malic acid DL-MALIC ACID,DL(+/-)-MALIC ACID Glycine Succinic acid meso-2,3-Dibromosuccinic acid D(+)-Malic acid Disodium succinate Ammonium succinate L-(-)-Malic Acid