NOAEL Data REACH Registered Cosmetic Ingredient

1-Hexadecanaminium, N-(carboxymethyl)-N,N-dimethyl-, inner salt

Also known as: BRN 3676787, N-(Carboxymethyl)-N,N-dimethyl-1-hexadecanaminium hydroxide inner salt, N,N-Dimethyl-N-hexadecylglycine, EINECS 211-748-4, UNII-E945X08YA9

CAS 693-33-4

1-Hexadecanaminium, N-(carboxymethyl)-N,N-dimethyl-, inner salt (CAS 693-33-4) is a chemical substance. Key regulatory status: REACH registered, 4 regulatory/inventory lists, cosmetic ingredient cross-reference; source data from EPA ToxValDB, EPA CPDat, AICIS, ECHA REACH.

View cosmetic safety profile for Cetyl Betaine →

SOURCE noael studies public
NOAEL studies
7
SOURCE chemical inventory jurisdictions
Regulatory lists
4
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 11 fields
Name
1-Hexadecanaminium, N-(carboxymethyl)-N,N-dimethyl-, inner salt
CAS Number
693-33-4
DTXSID
DTXSID8027298
Molecular Formula
C20H41NO2
InChI Key
TYIOVYZMKITKRO-UHFFFAOYSA-N
Monoisotopic Mass
327.31373
Synonyms
BRN 3676787N-(Carboxymethyl)-N,N-dimethyl-1-hexadecanaminium hydroxide inner saltN,N-Dimethyl-N-hexadecylglycineEINECS 211-748-4UNII-E945X08YA9

Functional Uses

Industrial and product-use categories associated with this substance.

SOURCE EPA CPDat 60 records
Surfactant (surface active agent)Anti-static agentSoftener and conditionerViscosity modifierCleaning agentFoamantThickening agent

Regulatory Lists

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

SOURCE EPA CPDat 4 records
ListKeywordSource
SCIL (9/2019)USEPASafer Chemical Ingredients List
inert_ingredient; non_food_use; PesticidesEPACPCat
children; Europe; Personal careDanish Environmental Protection AgencyDanish EPA
children; Europe; Personal care - hair styling and care - shampooDanish Environmental Protection AgencyDanish EPA

NOAEL Studies

Toxicology endpoints rendered from public NOAEL study rows.

SOURCE NOAEL studies Showing 7 of 7 studies
ValueUnitEndpointRouteSpeciesSource
E945X08YA9UNIIFDA UNII substance identifier--openFDA substances
E945X08YA9UNIIFDA UNII substance identifier--openFDA substances
E945X08YA9UNIIFDA UNII substance identifier--openFDA substances
E945X08YA9UNIIFDA UNII substance identifier--openFDA substances
<50mg/kg bw/dayNOAELoralRatToxValDB_ECHA_IUCLID
>250mg/kg bw/dayNOAELoralRatToxValDB_ECHA_IUCLID
=350mg/kg bw/dayNOAELoralRatToxValDB_ECHA_IUCLID

Showing 7 of 7 studies

REACH Registration

Registration status from the ECHA REACH registered substances database.

SOURCE ECHA (EU) 1 records
StatusNameEC NumberLink
Registered(carboxylatomethyl)hexadecyldimethylammonium211-748-4ECHA 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
Surfactant
View full cosmetic safety profile →

Frequently Asked Questions

What is the NOAEL for 1-Hexadecanaminium, N-(carboxymethyl)-N,N-dimethyl-, inner salt?

1-Hexadecanaminium, N-(carboxymethyl)-N,N-dimethyl-, inner salt has 7 NOAEL studies in the database. The lowest reported value is E945X08YA9 UNII. Source: openFDA substances.

What regulatory lists include 1-Hexadecanaminium, N-(carboxymethyl)-N,N-dimethyl-, inner salt?

1-Hexadecanaminium, N-(carboxymethyl)-N,N-dimethyl-, inner salt appears on 4 regulatory/inventory lists including SCIL (9/2019), inert_ingredient; non_food_use; Pesticides, children; Europe; Personal care, and 1 more. Source: EPA CPDat.

Is 1-Hexadecanaminium, N-(carboxymethyl)-N,N-dimethyl-, inner salt used in cosmetics?

Yes, 1-Hexadecanaminium, N-(carboxymethyl)-N,N-dimethyl-, inner salt is also indexed as a cosmetic ingredient under the name Cetyl Betaine. 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 1-Hexadecanaminium, N-(carboxymethyl)-N,N-dimethyl-, inner salt 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 1-Hexadecanaminium, N-(carboxymethyl)-N,N-dimethyl-, inner salt used outside industrial chemicals?

1-Hexadecanaminium, N-(carboxymethyl)-N,N-dimethyl-, inner salt also appears in cosmetics databases.