Danger GHS06GHS09 NOAEL Data Cosmetic Ingredient

2-Amino-5-(diethylamino)toluene monohydrochloride

Also known as: N4,N4-Diethyl-2-methyl-1,4-benzenediamine monohydrochloride, 2-Amino-5-(diethylamino)toluene monoHCl, N4,N4-Diethyl-2-methylbenzene-1,4-diamine hydrochloride, 1,​4-​Benzenediamine, N4,​N4-​diethyl-​2-​methyl-​, hydrochloride (1:1), 1,4-Benzenediamine, N4,N4-diethyl-2-methyl-, monohydrochloride (+15 more)

CAS 2051-79-8

2-Amino-5-(diethylamino)toluene monohydrochloride (CAS 2051-79-8) is a chemical substance with GHS signal word Danger; key hazard signal: H301; H319; H317; H400; H410. Key regulatory status: cosmetic ingredient cross-reference; source data from ECHA CLP, EPA ToxValDB, EPA CPDat, AICIS.

View cosmetic safety profile for N,N-DIETHYLTOLUENE-2,5-DIAMINE HCL →

SOURCE NOAEL studies
NOAEL studies
11
SOURCE Chemical inventory jurisdictions
Regulatory lists
0
SOURCE EU CLP Annex VI
GHS signal
Danger

Chemical Identity

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

SOURCE DSSTox identifiers 26 fields
Name
2-Amino-5-(diethylamino)toluene monohydrochloride
CAS Number
2051-79-8
DTXSID
DTXSID1038799
Molecular Formula
C11H18N2.ClH
InChI Key
MPLZNPZPPXERDA-UHFFFAOYSA-N
Monoisotopic Mass
214.123676
Synonyms
N4,N4-Diethyl-2-methyl-1,4-benzenediamine monohydrochloride2-Amino-5-(diethylamino)toluene monoHClN4,N4-Diethyl-2-methylbenzene-1,4-diamine hydrochloride1,​4-​Benzenediamine, N4,​N4-​diethyl-​2-​methyl-​, hydrochloride (1:1)1,4-Benzenediamine, N4,N4-diethyl-2-methyl-, monohydrochlorideToluene-2,5-diamine, N5,N5-diethyl-, monohydrochloride3-Methyl-4-amino-N,N-diethylaniline hydrochloride3-Methyl-4-amino-N,N-diethylaniline monohydrochloride4-(Diethylamino)-2-methylaniline monohydrochloride4-Amino-N,N-diethyl-m-toluidine hydrochlorideN',N'-Diethyl-2-methyl-1,4-phenylenediamine monohydrochloride4-diethylamino-2-methylaniline monohydrochloride

GHS / CLP Classification

EU harmonized hazard classification, hazard statements, pictograms, and signal word.

SOURCE EU CLP Annex VI (ECHA) 1 classifications
Hazard ClassH-StatementsPictogramsSignal
Acute Tox. 3 *; Eye Irrit. 2; Skin Sens. 1; Aquatic Acute 1; Aquatic Chronic 1H301; H319; H317; H400; H410GHS06; GHS09Danger

Functional Uses

Industrial and product-use categories associated with this substance.

SOURCE EPA CPDat 2 records
Dye

NOAEL Studies

Toxicology endpoints rendered from public NOAEL study rows.

SOURCE NOAEL studies Showing 11 of 11 studies
ValueUnitEndpointRouteSpeciesSource
1.645%Concentration, 5% incidence of positive responsesDermalHumanNTP ICE skin sensitization
1.316%Concentration, one positive responseDermalHumanNTP ICE skin sensitization
39MIH70E0IUNIIFDA UNII substance identifier--openFDA substances
39MIH70E0IUNIIFDA UNII substance identifier--openFDA substances
39MIH70E0IUNIIFDA UNII substance identifier--openFDA substances
39MIH70E0IUNIIFDA UNII substance identifier--openFDA substances
76%Incidence of positive responsesDermalHumanNTP ICE skin sensitization
15520ug/cm2Induction dose per skin areaDermalHumanNTP ICE skin sensitization
1021ug/cm2Induction dose per skin area, 5% incidence of positive responsesDermalHumanNTP ICE skin sensitization
816.7ug/cm2Induction dose per skin area, one positive responseDermalHumanNTP ICE skin sensitization
1unitlessRelative reliability scoreDermalHumanNTP ICE skin sensitization

Showing 11 of 11 studies

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
restricted
Max
II/1310
Category
Hair Dyes
View full cosmetic safety profile →

Frequently Asked Questions

What is the GHS hazard classification for 2-Amino-5-(diethylamino)toluene monohydrochloride?

2-Amino-5-(diethylamino)toluene monohydrochloride (CAS 2051-79-8) is classified under EU CLP Annex VI as Acute Tox. 3 *; Eye Irrit. 2; Skin Sens. 1; Aquatic Acute 1; Aquatic Chronic 1 with signal word Danger. Hazard statements: H301; H319; H317; H400; H410. Source: EU CLP Annex VI (ECHA).

What is the NOAEL for 2-Amino-5-(diethylamino)toluene monohydrochloride?

2-Amino-5-(diethylamino)toluene monohydrochloride has 11 NOAEL studies in the database. The lowest reported value is 1.316 % via Dermal in Human. Source: NTP ICE skin sensitization.

Is 2-Amino-5-(diethylamino)toluene monohydrochloride used in cosmetics?

Yes, 2-Amino-5-(diethylamino)toluene monohydrochloride is also indexed as a cosmetic ingredient under the name N,N-DIETHYLTOLUENE-2,5-DIAMINE HCL. 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 2-Amino-5-(diethylamino)toluene monohydrochloride come from?

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

Does 2-Amino-5-(diethylamino)toluene monohydrochloride have different safety status in cosmetics vs industrial chemicals?

2-Amino-5-(diethylamino)toluene monohydrochloride is classified GHS Danger (H301, H319, H317, H400, H410) in the chemicals database but is restricted in EU cosmetics at max II/1310.

Is 2-Amino-5-(diethylamino)toluene monohydrochloride used outside industrial chemicals?

2-Amino-5-(diethylamino)toluene monohydrochloride also appears in cosmetics databases.