E634 — Calcium5-Ribonucleotide
Flavour enhancer - combines inosinate + guanylate
Also known as: Calcium Ribonucleotide · Calcium 5'-Ribonucleotide
Verification required
Verify — Mushbooh
Source-dependent and requires verification. This additive may be derived from either halal (plant/synthetic) or haraam (animal) sources. Always check the product label or contact the manufacturer to verify the source.
Checking this in a shop right now?
Vegan / vegetarian label on pack → plant-based source → safe for this code
HFA / HMC / IFANCA / JAKIM logo → independently certified → safe
Neither? Follow the steps below.
School of Thought Breakdown
Hanafi
Verify source
Maliki
May permit
Shafi'i
Avoid if animal
Hanbali
Avoid if animal
Mushbooh - combines all concerns of E626, E627, E631. Seek halal certification.
What to do with this product
Follow these steps in order — most products resolve at step 1 or 2
Check for a "suitable for vegans" or "suitable for vegetarians" claim
If present, E634 comes from a plant-based source — safe for this code. Still check all other ingredients too.
Look for a halal certification logo on the pack
An HFA, HMC, IFANCA, JAKIM, or ESMA logo means the source has been independently audited. The E-code is confirmed halal in this product.
Neither? Here's what to do next:
Put it back and look for a certified alternative on the same shelf.
Check for products carrying an HFA, HMC, or IFANCA logo, or labelled "suitable for vegans". Either confirms a safe source.
Did you find a certified alternative?
Halal snacks — no MSG or nucleotide flavor enhancers:
Browse halal alternatives on AmazonAmazon Associate — we earn from qualifying purchases.
About E634
Calcium5-ribonucleotide is a nucleotide commercially obtained from torula yeast cells. Torula yeast is grown on alcohol in USA to obtain nucleotide which is mostly used in infant baby formula. In Europe if torula yeast grown on sugar cane and calcium5-ribonucleotide is obtained from it then it is Halal otherwise it is not Halal.
Verification Required
This additive's halal status depends on its source. Check the product label for a halal certification mark, or contact the manufacturer directly.
What is E634 made from?
- same mixed sources as E635
Foods that commonly contain E634
Food Category Guide
E634 is common in seasoning mixes — see the full halal guide →
Always check the ingredient label on the specific product - manufacturers may change formulations.
Frequently Asked Questions
Is E634 (Calcium5-Ribonucleotide) halal?
E634 (Calcium5-Ribonucleotide) is classified as Mushbooh (Questionable). Source-dependent and requires verification. This additive may be derived from either halal (plant/synthetic) or haraam (animal) sources. Always check the product label or contact the manufacturer to verify the source.
What is E634 used for?
E634 is used as a flavour enhancer - combines inosinate + guanylate in food products.
What foods contain E634?
E634 (Calcium5-Ribonucleotide) is commonly found in: seasoning mixes, crisps, processed foods.
What is E634 made from?
E634 can be derived from the following sources: same mixed sources as E635.
What are the other names for E634?
E634 may appear on food labels as: Calcium Ribonucleotide, Calcium 5'-Ribonucleotide.
flavor enhancers — 20 E-codes: 3 Halal, 0 Haraam, 17 Mushbooh
Related E-Codes in flavor enhancers
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This information is for educational purposes only. For religious rulings, consult a qualified Islamic scholar or halal certification authority. E-code classifications may vary by source, manufacturing process, and school of thought.