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InventoryRef 5450115/10/2010

ARGON

Argon

ARGON is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

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Regulatory evidence by market

No rule for this ingredient has been imported for any of the 13 markets tracked here.

That describes this inventory, not the law. No imported rule is not evidence that an ingredient is permitted: a rule may exist under another name or identifier, or in a dataset not yet imported here.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 7440-37-1
CAS 7440-37-1PubChem CID 23968

Argon

Argon appears as a colorless odorless noncombustible gas. Heavier than air and can asphyxiate by displacement of air. Exposure of the container to prolonged heat or fire can cause it to rupture violently and rocket. If liquefied, contact of the very cold liquid with water may cause violent boiling. If the water is hot, there is the possibility that a liquid "superheat" explosion may occur. Contacts with water in a closed container may cause dangerous pressure to build. — CAMEO Chemicals

IUPAC name
argon
Molecular formula
Ar
Molecular weight
39.9 g/mol
Exact mass
39.96238312 Da
Topological polar surface area
0.0 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
0
Covalent units
1
Defined stereocentres
0

Also known as

Argon-40Argon, Elemental67XQY1V3KHArgon 40ARKHLADON R 740INS NO.938E-938
16 more reported names
INS-938R 740RefChem:113993231-147-0argon atomArgon36argon(0)E938Argon, >=99.998%EINECS 231-147-0UN1006UN1951UNII-67XQY1V3KHArgon elementAtomic ArgonElement Argon
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Inventory details for ARGON

INCI name

ARGON

Description

Argon

Record provenance

Inventory reference
54501
Imported identity
ARGON
Source update
15/10/2010
European Commission CosIng source notes
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Key data

CAS
7440-37-1
EC
231-147-0
Restriction
—
Function
ANTIOXIDANT
Inhibiting reactions promoted by oxygen, thus avoiding oxidation and rancidity.

Official EU ingredient-name evidence

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

#2262 · ARGON

Ingredients with overlapping formulation functions

ARCTIUM LAPPA FRUIT EXTRACTANTIOXIDANT, SKIN CONDITIONING
ARGANIA SPINOSA CALLUS EXTRACTANTIMICROBIAL, ANTIOXIDANT, HAIR CONDITIONING, HUMECTANT, SKIN PROTECTING
ARGEMONE MEXICANA CALLUS EXTRACTANTIOXIDANT
ARGININE AMINOPHOSPHONOBUTYRIC ACIDANTIOXIDANT, ANTIPLAQUE, HAIR CONDITIONING, NAIL CONDITIONING, SKIN CONDITIONING - EMOLLIENT
ARISTOTELIA CHILENSIS CALLUS EXTRACTANTIOXIDANT
ARISTOTELIA CHILENSIS FRUIT JUICEANTIOXIDANT
ARMERIA ALPINA LEAF CELL EXTRACTANTIOXIDANT, SKIN PROTECTING
AROMADENDRINANTIOXIDANT; SKIN CONDITIONING - MISCELLANEOUS

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 ARGON appears in the CosIng inventory

The CosIng inventory lists ARGON as a cosmetic ingredient and this page links it to 0 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.

ARGON 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

ARGON is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Absence of an annex link does not guarantee unrestricted use — always verify against the current official CosIng database before formulating.

According to the EU CosIng inventory, ARGON carries the following function designation(s):

CAS 7440-37-1 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 ARGON

This page reproduces the CosIng inventory entry for ARGON from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.

Use this inventory page to research ARGON 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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