What other records share CAS 1634-04-4?

CAS 1634-04-4 may appear across multiple EU annex records. The CAS lookup page shows all Annex II–VI entries sharing this identifier, useful for identifying cross-annex regulatory status of the same chemical substance.

InventoryRef 8568115/10/2010

T-BUTYL METHYL ETHER

Q: How do I check if my formula contains T-BUTYL METHYL ETHER?

Use the INCI Checker tool on CosIng Checker to paste your full ingredient list and scan it against all EU annex records and allergen flags in one step.

tert-butyl methyl ether

T-BUTYL METHYL ETHER is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

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Inventory details for T-BUTYL METHYL ETHER

INCI name

T-BUTYL METHYL ETHER

Description

tert-butyl methyl ether

Annex records for T-BUTYL METHYL ETHER

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Key data

CAS

1634-04-4

216-653-1

Restriction

—

Function

SOLVENT

How T-BUTYL METHYL ETHER appears in the CosIng inventory

The CosIng inventory lists T-BUTYL METHYL ETHER 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.

T-BUTYL METHYL ETHER 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

T-BUTYL METHYL ETHER 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, T-BUTYL METHYL ETHER carries the following function designation(s):

SOLVENT

CAS 1634-04-4 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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Use the INCI Checker tool to paste your full ingredient list and scan it against all EU annex records and allergen flags in one step.

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Source note for T-BUTYL METHYL ETHER

This page reproduces the CosIng inventory entry for T-BUTYL METHYL ETHER 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 T-BUTYL METHYL ETHER 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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Tools & next steps

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