Flavor Enhancer · CAS 644-49-5
Propyl Isobutyrate
FDA status: Approved. EU: not separately listed. No U.S. state has enacted a specific ban yet.
According to the U.S. Food and Drug Administration, Propyl Isobutyrate is FDA-approved, and no U.S. state has moved to restrict it independently of federal policy. Its composite safety score is 4 out of 5 (Low Risk).
The verdict
Propyl Isobutyrate is FDA-approved, and no U.S. state has moved to restrict it.
- 4/5
- Low Risk
- Approved
- FDA status
- -
- EU status
- 0
- state regulations
CAS-led regulatory snapshot
Propyl Isobutyrate: no OFF product match; CAS 644-49-5 is the lead registry handle on this row.
| Property | Value | Source |
|---|---|---|
| CAS Number | 644-49-5 | CAS Registry |
| FDA Status | Approved | FDA SAFFA |
| EU Status | Not separately listed | EC 1333/2008 |
| E-Number | - | EU additive register |
| Category | Flavor Enhancer | FDA functional class |
| Composite Safety Score | 4 / 5 (Low Risk) | PlainIngredients methodology |
| EFSA ADI | Not established | EFSA scientific opinion |
| U.S. State Actions | 0 states | State legislative records |
| Tracked Products | Not yet tracked | Open Food Facts (US) |
Values reflect official agency classifications as published by the U.S. Food and Drug Administration and the European Union's regulatory framework. See our methodology for scoring details.
What is Propyl Isobutyrate?
Propyl Isobutyrate (CAS 644-49-5) is an FDA-regulated food substance used as flavor enhancer, flavoring agent or adjuvant.
Common Uses
Catalog-profile peer axes
Nationwide catalog-profile peers for Propyl Isobutyrate
Product-count (0) and safety-score (4/5) peer columns, disjoint link sets.
Score 4/5 peers (≥50 OFF products)
Nearest other additives by PlainIngredients safety score (floored at ≥50 tracked products), distinct from the count row.
Frequently Asked Questions
Is Propyl Isobutyrate safe to consume?
Propyl Isobutyrate scores 4/5 (Low Risk). FDA status is Approved. No OFF product match yet; the distinctive registry handle is CAS 644-49-5, so this page leads with the chemical identity row rather than a shelf-prevalence claim.
What is Propyl Isobutyrate used for in food?
Propyl Isobutyrate (CAS 644-49-5) is catalogued for flavor enhancer, flavoring agent or adjuvant (Flavor Enhancer); OFF has not matched a U.S. product row yet.