Name: L-(+)Sodium glutamate
Synonyms:L-Glutamic acid monosodium salt; Sodium hydrogen glutamate; Monosodium-L-glutamate
Molecular Formula: C5H8NNaO4
Molecular Weight: 169.11
CAS Registry Number: 142-47-2
EINECS: 205-538-1
Monosodium glutamate, also known as
sodium glutamate and
MSG, is a sodium salt of the non-essential amino acid glutamic acid. It is used as a food additive and is commonly marketed as a flavour enhancer. It has the
HS code 29224220 and
the E number E621. Trade names of monosodium glutamate include Ajinomoto, Vetsin, and Accent. It was once predominantly made from wheat gluten, but is now mostly made from bacterial fermentation; it is acceptable for celiacs following a gluten-free diet. Although traditional Asian cuisine had often used seaweed extract, which contains high concentrations of glutamic acid, MSG was not isolated until 1907. MSG was subsequently patented by Ajinomoto Corporation of Japan in 1909. In its pure form, it appears as a white crystalline powder; when immersed in water or saliva, it rapidly dissociates into sodium cations and glutamate anions (glutamate is the anionic form of glutamic acid, a naturally occurring amino acid).
Speciafication
| Product name |
Sodium glutamate |
| Molar mass |
169.111 g/mol |
| Appearance |
white crystalline powder |
| Melting point |
225 °C, 498 K, 437 °F |
| Solubility in water |
very soluble in water |
| Melting point |
232 ºC |