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GREENVEIL

  • food

Rennin

CAS 9001-98-3 · 40/100 · High conf.

Concern score

40/100Moderate concern based on regulatory listings.
High confidence

Rennin in plain language

What it is

Also known as Chymosin · Rennet bovine · Abomasal enzyme · Bovine chymase · Rennase · Rennin (bos taurus)

Show all 9 names

Rennin from calf stomach · EC-34234 · EC-3443

What it does

Used in food as an enzyme preparation.

  • Enzyme preparation
Is it a concern?
Moderate concern: no hazard classifications on record.

Why it's flagged

EPA DSSTox provides the canonical identifier, structure, and synonym profile for this chemical.

The score describes this ingredient's chemical identity — its hazard profile from published classifications and regulatory status — not the safety of any product it appears in.

Regulation

No restrictions found. Rennin appears in these published regulatory listings.

  • GLOBALJECFANOT SPECIFIEDJECFA evaluation lists ADI NOT SPECIFIED. Functional class: enzyme preparation.
    • JECFA evaluation lists ADI NOT SPECIFIED. Functional class: enzyme preparation.Source →
  • GLOBALJECFANOT LIMITEDJECFA evaluation lists ADI NOT LIMITED. Functional class: enzyme preparation.
    • JECFA evaluation lists ADI NOT LIMITED. Functional class: enzyme preparation.Source →
  • GLOBALJECFAEvaluatedJECFA evaluation record.
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as protein.
    • openFDA substance registry classifies this ingredient as protein.Source →

Expert safety opinions

Independent scientific assessments cited by the records we hold, with the year and link where the record gives one.

  • JECFA

    Joint FAO/WHO Expert Committee on Food Additives

    • JECFA evaluation lists ADI NOT SPECIFIED. Functional class: enzyme preparation.

      Year not recorded · GLOBAL JECFA listing · Read the source →

    • JECFA evaluation lists ADI NOT LIMITED. Functional class: enzyme preparation.

      Year not recorded · GLOBAL JECFA listing · Read the source →

    • JECFA evaluation record.

      Year not recorded · GLOBAL JECFA listing · Read the source →

  • EFSA

    European Food Safety Authority

    No EFSA opinion on file.

Evidence & sources

No graded research studies for Rennin yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

4 data sources

Where this comes from

  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →

  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →

  • WHO JECFA Database

    regulatory · updated 2026-10-04

    Open →

  • openFDA Substance

    registry · updated 2026-05-24

    Open →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Food use

Food-use source coverage is present in the current record.

Good fit

The ingredient appears in food-oriented source coverage or allowed-use references, which makes food use easier to support than a context with no domain signal at all.

Fragrance avoidance

No fragrance-linked caution surfaced in the current profile.

Good fit

This ingredient does not currently read as a fragrance-linked driver in the published evidence and hazard profile.

Catalog

Found in these products

Their ingredient lists include Rennin; each product's own rating depends on its whole formula, so it is shown on the product page, not here.

See all 12 →Find products without it →