Details :  MSG is a kind of seasoning, the main ingredient is sodium glutamate. 
MSG, also known as MSG, is a kind of seasoning, the main ingredient is sodium glutamate. 
MSG, also known as "Ajinomoto" scientific name "monosodium glutamate." Finished columnar crystals or white crystalline powder, the main component of glutamate and salt. 
IUPAC English name   Sodium (2S)-2-amino-5-hydroxy-5-oxo-pentanoate 
CAS No.  142-47-2   PubChem 85314   SMILES C (CC (= O) O) C (C (= O) O-) N. [Na +] 
Chemical Formula  C5H8O4NNa · H2O 
InChI = 1/C5H9NO4. Na/c6-3 (5 (9) 10) 1-2-4 (7) 8 ;/ h3H ,1-2, 6H2, (H, 7,8) (H, 9,10 ) ;/ q; +1 / p-1 
Molar mass  187.13g mol-1   Exterior White crystalline powder, granular size   Melting  232 ℃ 
Solubility   Soluble in water solubility at 20 ℃ is 71.7g/100ml, slightly soluble in ethanol. 
Glutamate is an amino acid glutamic acid sodium salt. Is an odorless, colorless crystals, melting at 232 ℃ disintegration time. Good water-soluble sodium glutamate, can be dissolved in 100 ml water and 72 g of sodium glutamate.