E-code guide
E634Calcium 5-ribonucleotides
DoubtfulFlavor enhancer
E634

Calcium 5-ribonucleotides

Flavor enhancer

SANHA classifies this as doubtful.
Based on 1 cited authority. Confidence: medium.

What authorities say

1 authority on record
1says Doubtful
Saying Doubtful1 of 1

Why this verdict

E634 is calcium 5-ribonucleotides, a flavour enhancer used in savoury snacks and processed foods. It is a mixture of calcium guanylate (E629) and calcium inosinate (E633). SANHA classifies E634 as Mushbooh because the inosinate component can be from animal sources. No other major halal authority in the source corpus has published a per-additive position on E634. Without source disclosure the additive defaults to doubtful unless the product carries halal certification.

Common questions

Is E634 halal?

Calcium 5-ribonucleotides (E634) is classified doubtful. SANHA classifies it as doubtful.

Only SANHA has a published position on this additive. The verdict is provisional until more authorities weigh in.
Last reviewed by the HalalHQ research team in May 2026.