What is Monosodium Glutamate CAS 142-47-2?

Monosodium Glutamate CAS 142-47-2 is the sodium salt of L-glutamic acid, commonly called MSG or sodium glutamate. Commercial food-grade MSG is usually supplied as the monohydrate with formula C5H8NO4Na.H2O.

It is generally produced by fermentation of carbohydrate sources such as corn, rice, or tapioca using Corynebacterium strains, followed by purification and neutralization with sodium hydroxide. This is a controlled biological process rather than chemical synthesis from petroleum.

How does Monosodium Glutamate enhance flavor?

It provides umami, the savory taste associated with glutamate, and intensifies meaty or broth-like notes in foods. Because it contributes less sodium by weight than table salt, formulators can sometimes reduce total sodium while maintaining savory intensity.

What grades and regulatory identities apply?

Food-grade MSG is commonly supplied under E621, FCC, or GB/T 8967 specifications. Pharmaceutical or specialty grades may have tighter impurity, microbial, and assay controls depending on the intended market.

What storage and handling conditions should be followed?

Store Monosodium Glutamate in sealed, dry packaging away from moisture and strong oxidizing agents. Keep it in a cool, clean area to protect flowability, appearance, and sensory quality.

Monosodium Glutamate CAS 142-47-2

Monosodium Glutamate (CAS 142-47-2), widely recognized as MSG, is the sodium salt of glutamic acid functioning as a premier flavor enhancer in the global food processing industry. Chemically identified as Sodium 2-aminopentanedioate, this white crystalline powder acts to intensify the savory "Umami" taste profile by stimulating specific glutamate receptors on the tongue. As a stable Amino acid salt derived typically through bacterial fermentation of starch or molasses, it is extensively integrated into soups, snacks, processed meats, and seasoning blends to improve palatability while allowing for sodium reduction in final formulations. We ensure bulk supply capabilities for this material, providing access to competitive factory pricing and customized specifications to meet specific mesh sizes (e.g., 20 mesh, 60 mesh, 80 mesh, or powder). Full technical documentation, including MSDS, TDS, COA, is available to support compliance and safety protocols.

CAS: 142-47-2
Synonyms: MSG, Sodium glutamate, Monosodium L-glutamate, L-Glutamic acid monosodium salt, Sodium 2-aminopentanedioate
Einecs: 205-538-1
Molecular Formula: C5H8NO4Na.H2O
Grade: Food Grade / FCC IV / E621 / GB/T 8967
Package: 25kg Kraft Paper Bag / PP Bag, or customized small packaging (454g, 1lb, etc.) for retail.

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Product Description

Monosodium Glutamate, commonly known as MSG, is the sodium salt of glutamic acid, one of the most abundant naturally occurring non-essential amino acids. Our product appears as white, odorless, prismatic crystals or powder with a distinct “Umami” taste.

It is produced via a natural fermentation process (similar to yogurt or vinegar) using corn or rice glucose. As a flavor enhancer, it intensifies the meaty, savory flavor of food. Our manufacturing facilities are ISO, HACCP, HALAL, and KOSHER certified, ensuring the product meets strict international food safety standards suitable for global export.

1 Physicochemical Properties

2 Applications

3 Storage Conditions

4 Safety Precautions

Physicochemical Properties

The following specifications represent typical Food Grade standards (99% Purity):

Property	Specification / Value
Appearance	White Crystalline Granules or Powder
Purity (Assay as C5H8NO4Na·H2O)	≥ 99.0%
State of Solution (Transmittance)	≥ 98.0% (Clear and colorless)
Specific Rotation [α] (20, D)	+24.8° to +25.3°
Loss on Drying	≤ 0.50%
pH Value (5% Solution)	6.7 – 7.5
Chloride (Cl)	≤ 0.10%
Iron (Fe)	≤ 5 mg/kg (ppm)
Heavy Metals (as Pb)	≤ 1 mg/kg (ppm)
Arsenic (As)	≤ 0.5 mg/kg (ppm)
Sulfate (SO4)	≤ 0.05%
Mesh Sizes Available	20, 30, 40, 60, 80, 100 mesh, or powder

Applications

Monosodium Glutamate is a staple ingredient in the food processing and culinary industries:

Food Processing: Widely used in the production of bouillon cubes, soup mixes, stocks, and sauces to enhance savory notes.
Snack Industry: Applied to potato chips, crackers, and savory snacks for flavor boosting.
Meat Products: Used in sausages, hams, and preserved meats to improve taste profile and palatability.
Catering & Restaurants: Essential in Asian and international cuisines for marinating meats and seasoning stir-fries, stews, and soups.
Instant Foods: A key ingredient in instant noodles and pre-packaged meals.

Storage Conditions

Environment: Store in a cool, dry, and well-ventilated area.
Moisture Control: MSG is stable but can cake if exposed to high humidity. Keep containers tightly closed when not in use.
Contamination: Store away from toxic, harmful, or strong-smelling goods to prevent contamination.
Shelf Life: Typically 36 months (3 years) when stored under proper conditions.

Safety Precautions

General Handling: Considered GRAS (Generally Recognized As Safe) by the FDA and WHO. Standard food hygiene practices should be followed.
Inhalation: Avoid breathing in fine dust. For powder forms, a dust mask is recommended during handling in large quantities.
Contact: Prolonged skin or eye contact may cause mild irritation in sensitive individuals. Wash hands thoroughly with water after handling.
Fire Safety: The product is combustible if heated but not highly flammable. In case of fire, use water spray, dry chemical, or carbon dioxide.

FAQ - Technical & Supply Chain

Q:
What is Monosodium Glutamate CAS 142-47-2?

A: Monosodium Glutamate CAS 142-47-2 is the sodium salt of L-glutamic acid, commonly called MSG or sodium glutamate. Commercial food-grade MSG is usually supplied as the monohydrate with formula C5H8NO4Na.H2O.
Q:
How is MSG produced?

A: It is generally produced by fermentation of carbohydrate sources such as corn, rice, or tapioca using Corynebacterium strains, followed by purification and neutralization with sodium hydroxide. This is a controlled biological process rather than chemical synthesis from petroleum.
Q:
How does Monosodium Glutamate enhance flavor?

A: It provides umami, the savory taste associated with glutamate, and intensifies meaty or broth-like notes in foods. Because it contributes less sodium by weight than table salt, formulators can sometimes reduce total sodium while maintaining savory intensity.
Q:
What grades and regulatory identities apply?

A: Food-grade MSG is commonly supplied under E621, FCC, or GB/T 8967 specifications. Pharmaceutical or specialty grades may have tighter impurity, microbial, and assay controls depending on the intended market.
Q:
What storage and handling conditions should be followed?

A: Store Monosodium Glutamate in sealed, dry packaging away from moisture and strong oxidizing agents. Keep it in a cool, clean area to protect flowability, appearance, and sensory quality.

Ordering & Documentation

Key information for document requests, quotations, and supply planning.

Documents

COA, TDS, SDS/MSDS and packing details are available on request.

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Sample & Supply

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Storage & Shipping

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