22798-10-3

Basic information

• Product Name: DL-Malic acid disodium salt
• Synonyms: SODIUM DL-MALATE HYDRATE;DI-SODIUM MALATE 0.5-WATER;DI-SODIUM DL-MALATE;DISODIUM DL-MALATE HYDRATE;DISODIUM DL-MALATE N-HYDRATE;DL-APPLE ACID DISODIUM SALT;DL-APPLE ACID DISODIUM SALT HYDRATE;DL-MALIC ACID DISODIUM SALT HYDRATE
• CAS NO: 22798-10-3
• Molecular Formula: C₄H₄O₅*2Na
• Molecular Weight: 178.05
• EINECS: 211-627-6
• Mol File: 22798-10-3.mol
• Article Data: 3

Chemical Properties

• Melting Point: >300 °C(lit.)
• Boiling Point: 306.4 °C at 760 mmHg
• Flash Point: 153.4 °C
• Appearance: /
• CAS DataBase Reference: DL-Malic acid disodium salt(CAS DataBase Reference)
• NIST Chemistry Reference: DL-Malic acid disodium salt(22798-10-3)
• EPA Substance Registry System: DL-Malic acid disodium salt(22798-10-3)

Safety Data

• WGK Germany: 3
• RTECS: ON7730000
• Hazardous Substances Data: 22798-10-3(Hazardous Substances Data)

Usage

General Description

DL-Malic acid disodium salt is a chemical compound that is commonly used as a food additive and acidulant. It is a white, crystalline powder that is highly soluble in water. DL-Malic acid disodium salt is used in the food industry to add a sour or tart flavor to products such as fruit juices, carbonated beverages, and candies. It is also used as a buffering agent and pH adjuster in various food and beverage applications. Additionally, DL-Malic acid disodium salt is used in the pharmaceutical industry as a pH adjuster and in the production of various drugs and medications.

InChI:InChI=1/C4H6O5.Na/c5-2(4(8)9)1-3(6)7;/h2,5H,1H2,(H,6,7)(H,8,9);

Upstream product

• 71901-42-3 4-ethoxy-3-hydroxy-4-oxobutanoic acid 
• 3105-55-3 sodium maleate 

Downstream Products

• 328-42-7 Oxalacetic acid 

Relevant articles and documents

Process for preparing hyperpolarized substrates and method for MRI

The present invention generally relates to a process for the preparation of aqueous solutions of hyperpolarized molecules ready for use in in-vivo MR diagnostic imaging, the use thereof as MRI contrast agent in investigation methods for producing diagnostic MR images of a human or non-human animal body organ, region or tissue.

Enzymatic Production of L-Malate from Maleate by Alcaligenes sp.

Alcaligenes sp.T501, which has the ability to produce L-malate from maleate at a concentration of 20percent in a molar yield of 98.4percent was isolated from soil.Analysis of the reaction mixture components suggested that maleate was converted to L-malate via fumarate through the action of maleate isomerase and fumarase.These two enzymes were constitutively found in the cells regardless of the carbon source in the medium.The enzyme reaction was significantly enhanced by adding 2-mercaptoethanol, but was not affected by glutathione or L-cysteine.