Monosodium glutamate (MSG, also known as sodium glutamate) is the sodium salt of glutamic acid, one of the most abundant naturally-occurring non-essential amino acids. MSG is found in tomatoes, Parmesan, potatoes, mushrooms, and other vegetables and fruits.ITEMSSPECIFICATIONPurity≥99.0%PH6.7-7.2Transparency≥98.0%SO42-≤0.05%Fe≤5mg/kgLoss on drying≤0.5%Specific rotation24.9°~+25.3°Cl-≤0.1%