aceingredients
https://www.aceingredients.com/products/e621-monosodium-glutamate-msg.html
E621 Monosodium Glutamate (MSG)
Monosodium glutamate (MSG E621) is a common food additive used as a food flavoring and umami seasoning in foods, including meat products, broth, soups, snacks, and different kinds of seasonings.