FDA Status
Approved
Flavor Enhancer · CAS 91-60-1
2-naphthalenthiol
FDA status: Approved. EU: not separately listed. No U.S. state has enacted a specific ban yet.
4.0 / 5
Composite safety Low Risk
Score 4 of 5
2-naphthalenthiol: 4/5 (Low Risk)
According to the U.S. Food and Drug Administration, 2-naphthalenthiol 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
2-naphthalenthiol 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
2-naphthalenthiol, CAS 91-60-1, is a flavor enhancer additive holding a composite safety score of 4 out of 5 (Low Risk). According to the U.S. Food and Drug Administration's Substances Added to Food inventory, it is currently classified as Approved, while the European Union lists it as not separately listed. It is most commonly used as flavor enhancer, flavoring agent or adjuvant":.
No U.S. state has enacted specific legislation targeting 2-naphthalenthiol to date, keeping federal FDA classification as the operative standard. State-level food safety legislation remains active nationally, and that picture may shift as new bills advance.
No major peer-reviewed health concerns are presently documented for 2-naphthalenthiol at consumer exposure levels, though scientific review is ongoing and positions can shift. All figures above draw on FDA SAFFA inventory records, EU food additive regulation (EC) No 1333/2008, EFSA scientific opinions where published, and legislative records from individual U.S. states.
Regulatory Snapshot
| Property | Value | Source |
|---|---|---|
| FDA Status | Approved | FDA SAFFA |
| EU Status | Not separately listed | EC 1333/2008 |
| E-Number | - | EU additive register |
| CAS Number | 91-60-1 | CAS Registry |
| 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.
EU Status
Not specified
U.S. State Regulations
0 states
None enacted
Safety Assessment
2-naphthalenthiol's 4/5 (Low Risk) score reflects where this specific ingredient lands on that scale. The FDA has approved 2-naphthalenthiol for use in food products under specified conditions.
How 2-naphthalenthiol compares
Where a safety score of 4/5 falls among all 4,509 scored ingredients tracked on PlainIngredients.
Ingredients by safety score (2-naphthalenthiol highlighted)
4,369 of 4,509 scored ingredients (96.9%) share a safety score of 4/5.
What is 2-naphthalenthiol?
2-naphthalenthiol (CAS 91-60-1) is an FDA-regulated food substance used as flavor enhancer, flavoring agent or adjuvant":.
Common Uses
flavor enhancer, flavoring agent or adjuvant":
Frequently Asked Questions
Is 2-naphthalenthiol safe to consume?
2-naphthalenthiol has a safety score of 4/5 (Low Risk). It is approved by the FDA for use in food. As with all food additives, moderation is advisable.
What is 2-naphthalenthiol used for in food?
2-naphthalenthiol is commonly used as: flavor enhancer, flavoring agent or adjuvant":. It belongs to the Flavor Enhancer category of food additives.
Is 2-naphthalenthiol banned in any US states?
Currently, no US states have enacted specific bans or regulations targeting 2-naphthalenthiol. However, state food safety legislation is evolving rapidly.
What is the difference between FDA and EU regulation of 2-naphthalenthiol?
The FDA classifies 2-naphthalenthiol as "Approved", and the EU may apply different standards. The FDA and EU use separate evaluation frameworks, the EU often applies the precautionary principle, sometimes banning additives that remain approved in the US. Always check both jurisdictions when evaluating food additive safety.
What health concerns are associated with 2-naphthalenthiol?
No major health concerns have been widely documented for 2-naphthalenthiol at this time. It holds a safety score of 4/5 (Low Risk). As with all food additives, ongoing scientific review may identify new findings.
How is the safety score for 2-naphthalenthiol calculated?
The safety score of 4/5 for 2-naphthalenthiol is a composite assessment based on FDA regulatory status, EU approval status, published scientific research on health effects, and state-level legislative actions. A score of 1 means "Banned / Avoid" and 5 means "Generally Safe." The score is updated as new regulatory actions or scientific evidence emerge.
Data Sources
- FDA Substances Added to Food (SAFFA) Inventory
- EU Food Additive Regulations (EC) No 1333/2008
- State food safety legislation and bill records
What to do about 2-naphthalenthiol
Use the regulatory picture, not a single score, to decide.
- Check the FDA status (Approved) and EU status (unlisted) before assuming it is risk-free. How we score
- Compare it against the most-restricted additives in the U.S. supply. View rankings
- Scan a whole ingredient label at once to flag the concerning entries. Label checker
Safety scores summarise regulatory status and published concerns; they are not medical or dietary advice.
Every figure on PlainIngredients is rendered directly from FDA, EU, EFSA and U.S. state regulatory records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.