NOAEL Data REACH Registered Cosmetic Ingredient

Ionox 330

Also known as: Phenol, 4,4',4''-[(2,4,6-trimethyl-1,3,5-benzenetriyl)tris(methylene)]tris[2,6-bis(1,1-dimethylethyl)-, 1,3,5-Tris(3,5-di-tert-butyl-4-hydroxybenzyl)mesitylene, BRN 2034522, EINECS 216-971-0, Methylene bis ethyl butyl phenol (+5 more)

CAS 1709-70-2

Ionox 330 (CAS 1709-70-2) is a chemical substance. Key regulatory status: REACH registered, 3 regulatory/inventory lists, cosmetic ingredient cross-reference; source data from EPA ToxValDB, EPA CPDat, AICIS, ECHA REACH.

View cosmetic safety profile for Tris-BHT Mesitylene →

SOURCE noael studies public
NOAEL studies
13
SOURCE chemical inventory jurisdictions
Regulatory lists
3
SOURCE eu clp annex vi
GHS signal
Not classified

Chemical Identity

CAS, identifiers, formula, and alternate names for the matched substance record.

SOURCE DSSTox identifiers 16 fields
Name
Ionox 330
CAS Number
1709-70-2
DTXSID
DTXSID6027428
Molecular Formula
C54H78O3
InChI Key
VSAWBBYYMBQKIK-UHFFFAOYSA-N
Monoisotopic Mass
774.595096
Synonyms
Phenol, 4,4',4''-[(2,4,6-trimethyl-1,3,5-benzenetriyl)tris(methylene)]tris[2,6-bis(1,1-dimethylethyl)-1,3,5-Tris(3,5-di-tert-butyl-4-hydroxybenzyl)mesityleneBRN 2034522EINECS 216-971-0Methylene bis ethyl butyl phenolSantoquin emulsionSantoquin mixture 62,4,6-Tri(3,5-di-tert-butyl-4-hydroxybenzyl)mesityleneUNII-51DM34B894Phenol, 4,4',4''-((2,4,6-trimethyl-1,3,5-benzenetriyl)tris(methylene))tris(2,6-bis(1,1-dimethylethyl)-

Functional Uses

Industrial and product-use categories associated with this substance.

SOURCE EPA CPDat 24 records
AntioxidantStabilizing agent

Regulatory Lists

Inventory, screening, and regulatory list matches from public chemical databases.

SOURCE EPA CPDat 3 records
ListKeywordSource
Indirect additives food contact (10/2018)FDAUnited States Food and Drug Administration (FDA)
Europe; plastic_additiveEuropean Chemicals AgencyEuropean Chemicals Agency (ECHA)
drinking_water; Europe; manufacturing; plastic_additiveBelgaquaCPCat

NOAEL Studies

Toxicology endpoints rendered from public NOAEL study rows.

SOURCE NOAEL studies Showing 13 of 13 studies
ValueUnitEndpointRouteSpeciesSource
=33.234mg/m3DNEL systemicinhalationHumanToxValDB_GESTIS_DNEL
51DM34B894UNIIFDA UNII substance identifier--openFDA substances
51DM34B894UNIIFDA UNII substance identifier--openFDA substances
51DM34B894UNIIFDA UNII substance identifier--openFDA substances
51DM34B894UNIIFDA UNII substance identifier--openFDA substances
=1500mg/kg bwLD50oralRatNTP_ICE_acute_oral
=185mg/kg bw/dayNOAELoralDogToxValDB_HPVIS
=480mg/kg bw/dayNOAELoralRatToxValDB_HPVIS
>960mg/kg bw/dayNOAELoralRatToxValDB_HPVIS
>5000ppmNOAELoralRatToxValDB_ECHA_IUCLID
=200mg/kg bw/dayNOELoralDogToxValDB_ECHA_IUCLID
>390mg/kg bw/dayNOELoralRatToxValDB_ECHA_IUCLID
>3033.6mg/kg bw/dayNOELoralRatToxValDB_ECHA_IUCLID

Showing 13 of 13 studies

REACH Registration

Registration status from the ECHA REACH registered substances database.

SOURCE ECHA (EU) 1 records
StatusNameEC NumberLink
Registered3,3',3'',5,5',5''-hexa-tert-butyl-α,α',α''-(mesitylene-2,4,6-triyl)tri-p-cresol216-971-0ECHA overview →

Australian Status (AICIS)

Australian industrial chemicals inventory status and applicable conditions.

SOURCE AICIS inventory 1 records
Inventory Status
listed

Cosmetic Safety Profile

Same-CAS cosmetic ingredient record for cross-vertical context.

SOURCE CosIng / Ingredients DB
EU Status
permitted
Max
-
Category
Antioxidant
View full cosmetic safety profile →

Frequently Asked Questions

What is the NOAEL for Ionox 330?

Ionox 330 has 13 NOAEL studies in the database. The lowest reported value is 33.234 mg/m3 via inhalation in Human. Source: ToxValDB_GESTIS_DNEL.

What regulatory lists include Ionox 330?

Ionox 330 appears on 3 regulatory/inventory lists including Indirect additives food contact (10/2018), Europe; plastic_additive, drinking_water; Europe; manufacturing; plastic_additive. Source: EPA CPDat.

Is Ionox 330 used in cosmetics?

Yes, Ionox 330 is also indexed as a cosmetic ingredient under the name Tris-BHT Mesitylene. View the full cosmetic safety profile on the ingredient page for detailed safety data, SCCS opinions, and regulatory status.

Where does the safety data for Ionox 330 come from?

Safety data is sourced from EPA ToxValDB, EPA CPDat, AICIS (Australian Industrial Chemicals Introduction Scheme), EPA DSSTox, ECHA REACH, CosIng / Ingredients DB. All data traces to primary regulatory sources and is updated from official government databases.

Is Ionox 330 used outside industrial chemicals?

Ionox 330 also appears in cosmetics databases.