Fragrance avoidance
Nothing to weigh for this context yet.
We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.
- beauty
- industrial
- pharma
O-tolyl biguanide
CAS 147140-65-6
Also registered as 2 other CAS numbers
92679-92-0 · 93-69-6
Concern score
Not assessed — no hazard data yet.
O-tolyl biguanide in plain language
Also known as 1-O-TOLYLBIGUANIDE · 1-(o-Tolyl)biguanide · o-Tolylbiguanide · 1-(diaminomethylidene)-2-(2-methylphenyl)guanidine · N-(2-Methylphenyl)triimidodicarbonic diamide · 1-carbamimidamido-N-(2-methylphenyl)methanimidamide
Show all 17 names
2-Tolylbiguanide · Aliant · BIGUANIDE, 1-o-TOLYL- · Eponoc B · Imidodicarbonimidic diamide, N-(2-methylphenyl)- · N-(2-Methylphenyl)imidodicarbonimidic diamide · Nocceler BG · Sopanox · Vulkacit 1000 · o-Tolyldiguanide · ortho-tolylbiguanide
Used in cosmetics as an antioxidant.
- Antioxidant
- We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.
Regulation
No restrictions found. O-tolyl biguanide appears in these published regulatory listings.
- Inactive ingredient in US drugs
- Found in consumer products
- Industrial
EUCosIngActiveListed in CosIng inventory for cosmetic use.
- Listed in CosIng inventory for cosmetic use.Source →
USEPAcommercial use observedEPA CPDat observed this chemical in 2 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Antioxidant, Catalyst, Chemical reaction regulator.
- EPA CPDat observed this chemical in 2 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Antioxidant, Catalyst, Chemical reaction regulator.Source →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
- openFDA substance registry classifies this ingredient as chemical.Source →
Expert safety opinions
No expert opinion on file for O-tolyl biguanide. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.
SCCS
EU Scientific Committee on Consumer Safety
No SCCS opinion on file.
CIR
Cosmetic Ingredient Review (US expert panel)
No CIR safety assessment on file.
Evidence & sources
No graded research studies for O-tolyl biguanide yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.
Where this comes from
- Open →
CosIng
regulatory · updated 2026-09-23
- Open →
EPA Chemical and Products Database
exposure · updated 23 March 2010
- Open →
EPA DSSTox Identifiers
chemistry · updated 2025-12-29
- Open →
FDA Inactive Ingredient Database
regulatory · updated 2026-01-09
- Open →
FDA GSRS UNII
registry · updated 2026-02-26
- Open →
openFDA Substance
registry · updated 2026-05-24
- Open →
PubChem Live Enrichment
chemistry · updated 2026-05-17
Suitability
Context-specific fit derived from published classifications and the current ingredient evidence profile.
No signal in this context
Where it has been recorded
How often EPA CPDat has listed O-tolyl biguanide in a product composition. These are source records, not Greenveil catalog products.
Source records
2
Named organisations
3
Typical roles
Antioxidant
Found in these products
Cosmetic and personal-care products that list O-tolyl biguanide are shown first. Their ingredient lists include O-tolyl biguanide; each product's own rating depends on its whole formula, so it is shown on the product page, not here.
