INS 627 is disodium guanylate, a flavour booster from the same family as disodium inosinate (INS 631). It is almost always paired with MSG (INS 621) in chips and noodle masala, where the combination tastes far stronger than any of them alone. Veg status depends on the source the manufacturer uses and is permitted by FSSAI for specified food categories.
INS 627 is disodium guanylate, a flavour booster from the same family as disodium inosinate (INS 631). It is almost always paired with MSG (INS 621) in chips and noodle masala, where the combination tastes far stronger than any of them alone.
Brands use it because it works in combination with MSG to boost umami at very small doses. The label shorthand 'I+G' (inosinate + guanylate) is the industry name for the combined flavour enhancer in many savoury Indian snacks.
INS 627 commonly shows up on Indian packets in these categories:
Disodium guanylate is most commonly produced from yeast extracts, but can also be derived from fish or animal products depending on the manufacturer. The pack alone does not say which source the brand used. The Indian veg/non-veg dot logo is your safest signal: a green dot means the brand has declared a non-animal source.
FSSAI: Permitted by FSSAI as a flavour enhancer under Schedule I of the FSS (Food Products Standards and Food Additives) Regulations 2011 for specified food categories.
JECFA: Group ADI 'not specified' for inosinic acid, guanylic acid, and their sodium, potassium, and calcium salts (covering INS 627, 630, 631, 633, 635). First assessed by JECFA in 1974, retained at 'not specified' in 1993.
On packets, in recipes, and in conversation, INS 627 is also called:
Last verified: 2026-04-29.