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InventoryRef 9229813/03/2018

1-HEXYL 4,5-DIAMINO PYRAZOLE SULFATE

1H-Pyrazole-4,5-diamine, 1-hexyl-, sulfate (2:1)

1-HEXYL 4,5-DIAMINO PYRAZOLE SULFATE is linked to 1 EU annex record on this page. Inventory note: III/300.

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Regulatory evidence by market

This matrix separates verified ingredient rules from sources that are mapped but not yet imported. No imported rule does not mean the ingredient is permitted.

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MarketEvidence statusRecordsSource language
European UnionEvidence linked
Restricted entry found
Open this evidence		1English and EU languages
Great BritainEvidence linked
Restricted
Open this evidence		1English
CanadaSource mapped
Official source mapped; ingredient rule not imported
0English and French
New ZealandEvidence linked
Restricted
Open this evidence		1English
ASEANEvidence linked
Restricted
Open this evidence		1English and national languages
ChinaSource mapped
Official source mapped; ingredient rule not imported
0Chinese with selected English material
JapanSource mapped
Official source mapped; ingredient rule not imported
0Japanese; official English translation available
South KoreaSource mapped
Official source mapped; ingredient rule not imported
0Korean with some English names
United StatesSource mapped
Official source mapped; ingredient rule not imported
0English
AustraliaSource mapped
Official source mapped; ingredient rule not imported
0English
BrazilSource mapped
Official source mapped; ingredient rule not imported
0Portuguese with INCI crosswalks
IndiaEvidence linked
Restricted
Open this evidence		1English and Hindi
Saudi ArabiaEvidence linked
Restricted
Open this evidence		1Arabic and English

Chemical identity and properties

PubChem 2D chemical structure for CAS 1361000-03-4
CAS 1361000-03-4PubChem CID 91936919

1-Hexyl 4,5-diamino pyrazole sulfate

IUPAC name
bis(1-hexylpyrazole-4,5-diamine);sulfuric acid
Molecular formula
C18H38N8O4S
Molecular weight
462.6 g/mol
Exact mass
462.27367290 Da
Topological polar surface area
223.0 Ų
Hydrogen-bond donors
6
Hydrogen-bond acceptors
10
Covalent units
3
Defined stereocentres
0

Also known as

9L2QOQ6WFHUNII-9L2QOQ6WFH1-Hexyl 4,5-diamino pyrazole hemisulfate1H-Pyrazole-4,5-diamine, 1-hexyl-, sulfate (2:1)1-Hexyl 4,5-diamino pyrazole sulfate [INCI]RefChem:1970444,5-Diamino-1-N-hexyl-1H-pyrazole hemisulfate2-hexylpyrazole-3,4-diamine;sulfuric acid
2 more reported names
1-Hexyl-1H-pyrazole-4,5-diamine hemisulfate1H-aPyrazole-a4,a5-adiamine, 1-ahexyl-a, sulfate (2:1)
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Inventory details for 1-HEXYL 4,5-DIAMINO PYRAZOLE SULFATE

INCI name

1-HEXYL 4,5-DIAMINO PYRAZOLE SULFATE

Description

1H-Pyrazole-4,5-diamine, 1-hexyl-, sulfate (2:1)

Record provenance

Inventory reference
92298
Imported identity
1-HEXYL 4,5-DIAMINO PYRAZOLE SULFATE
Source update
13/03/2018
European Commission CosIng source notes

Key data

CAS
1361000-03-4
EC
—
Restriction
III/300
Function
HAIR DYEING
Imparting color to hair. Hair dyeing preparations may be temporary, semi-permanent, or permanent, depending on the length of time the colorant remains on the hair.

Official EU ingredient-name evidence

The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.

#132 · 1-HEXYL 4,5-DIAMINO PYRAZOLE SULFATE

Ingredients with overlapping formulation functions

1,5-NAPHTHALENEDIOLHAIR DYEING
1,7-NAPHTHALENEDIOLHAIR DYEING
1-ACETOXY-2-METHYLNAPHTHALENEHAIR DYEING
1-ALLYL-3,4,6-TRIMETHYL-2-PYRIMIDONE BROMIDEHAIR DYEING
1-HYDROXYETHYL 4,5-DIAMINO PYRAZOLE SULFATEHAIR DYEING
1-NAPHTHOLHAIR DYEING
2,2'-METHYLENEBIS 4-AMINOPHENOLHAIR DYEING
2,2'-METHYLENEBIS-4-AMINOPHENOLHAIR DYEING

Additional official and scientific sources

11 external databases to check this identity in

Each link searches that source for this identity. What each source is, and its legal weight

ECHA CHEM / Information on chemicalsPubChem PUG RESTEU Safety Gate cosmetic product alertsECHA CHEMUS EPA CompToxCosmetic Ingredient Review safety assessmentsFDA Global Substance Registration SystemILO/WHO International Chemical Safety CardsJapan NITE-CHRIPNIOSH Pocket Guide to Chemical HazardsOECD eChemPortal

How 1-HEXYL 4,5-DIAMINO PYRAZOLE SULFATE appears in the CosIng inventory

The CosIng inventory lists 1-HEXYL 4,5-DIAMINO PYRAZOLE SULFATE as a cosmetic ingredient and this page links it to 1 annex record. The inventory entry captures names and identifiers, while the annex record shows where the substance is prohibited, restricted or positively listed in EU cosmetics law.

1-HEXYL 4,5-DIAMINO PYRAZOLE SULFATE is also tagged with 1 cosmetic function in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.

Frequently asked questions

1-HEXYL 4,5-DIAMINO PYRAZOLE SULFATE appears in the EU CosIng inventory and has linked annex records. Check the annex records above for applicable restrictions, concentration limits and conditions of use. Annex II listing means prohibited; Annex III means restricted; Annexes IV, V and VI mean permitted under specified conditions.

The restriction field for 1-HEXYL 4,5-DIAMINO PYRAZOLE SULFATE reads: "III/300". This is the restriction note recorded in the CosIng inventory for this ingredient. For authoritative conditions and limits, always refer to the linked annex entries above.

According to the EU CosIng inventory, 1-HEXYL 4,5-DIAMINO PYRAZOLE SULFATE carries the following function designation(s):

CAS 1361000-03-4 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.
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Source note for 1-HEXYL 4,5-DIAMINO PYRAZOLE SULFATE

This page combines the CosIng inventory entry for 1-HEXYL 4,5-DIAMINO PYRAZOLE SULFATE with 1 linked Annex II–VI record from the local dataset built from public European Commission cosmetic ingredient materials.

Use this inventory page to research 1-HEXYL 4,5-DIAMINO PYRAZOLE SULFATE and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

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