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Annex III Entry 97 CMR23/05/2022

MUSK KETONE

4'-tert-Butyl-2',6'-dimethyl-3',5'-dinitroacetophenone

MUSK KETONE is listed in Annex III and may only be used under the conditions shown in this record. Maximum concentration in this record: (a) 1.4% in fine fragrance (b) 0.56% in eau de toilette (c) 0.042% in other products.

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Restricted substance— Annex III, EU Regulation 1223/2009
Entry: 97
CMR

Chemical identity and properties

PubChem 2D chemical structure for CAS 81-14-1
CAS 81-14-1PubChem CID 6669

Musk ketone

4'-tert-Butyl-2',6'-dimethyl-3',5'-dinitroacetophenone is an aromatic ketone. — ChEBI

IUPAC name
1-(4-tert-butyl-2,6-dimethyl-3,5-dinitrophenyl)ethanone
Molecular formula
C14H18N2O5
Molecular weight
294.30 g/mol
Exact mass
294.12157168 Da
XLogP3
3.7
Topological polar surface area
109.0 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
5
Covalent units
1
Defined stereocentres
0

Also known as

4'-tert-Butyl-2',6'-dimethyl-3',5'-dinitroacetophenone2-Acetyl-5-tert-butyl-4,6-dinitroxyleneAcetophenone, 4'-tert-butyl-2',6'-dimethyl-3',5'-dinitro-3,5-Dinitro-2,6-dimethyl-4-tert-butylacetophenone4-tert-Butyl-3,5-dinitro-2,6-dimethylacetophenone2,6-Dinitro-3,5-dimethyl-4-acetyl-tert-butylbenzene2,6-Dimethyl-3,5-dinitro-4-t-butylacetophenone4-tert-Butyl-2,6-dimethyl-3,5-dinitroacetophenone
16 more reported names
483V3E1L6J1-(4-tert-butyl-2,6-dimethyl-3,5-dinitrophenyl)ethan-1-oneNSC-153391-(4-(1,1-Dimethylethyl)-2,6-dimethyl-3,5-dinitrophenyl)ethanoneEthanone, 1-(4-(1,1-dimethylethyl)-2,6-dimethyl-3,5-dinitrophenyl)-Ethanone, 1-[4-(1,1-dimethylethyl)-2,6-dimethyl-3,5-dinitrophenyl]-1-[4-(1,1-Dimethylethyl)-2,6-dimethyl-3,5-dinitrophenyl]ethanoneRefChem:160193201-328-9Ketone moschusKetone muskNSC 153391-(4-(tert-Butyl)-2,6-dimethyl-3,5-dinitrophenyl)ethan-1-one1-Acetyl-4-tert-butyl-2,6-dimethyl-3,5-dinitrobenzene4-t-Butyl-2,6-dimethyl-3,5-dinitroacetophenone4-tert-Butyl-2,6-dimethyl-3,5-dinitroactophenone
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.

Record details

Maximum concentration

(a) 1.4% in fine fragrance (b) 0.56% in eau de toilette (c) 0.042% in other products

Product type

All cosmetic products, with the exception of oral care products

INCI glossary name

MUSK KETONE

Chemical name

4'-tert-Butyl-2',6'-dimethyl-3',5'-dinitroacetophenone

Chemical / IUPAC name

4'-tert-Butyl-2',6'-dimethyl-3',5'-dinitroacetophenone

Regulatory information

Regulation

(EC) 2009/1223

See every entry this act set

Other directives

(EC) 2009/790

SCCS opinions

Identified ingredients

CMR

CategoryCarcinogenicMutagenicReprotoxic
Cat. 2✓——

Key data

CAS
81-14-1
EC
201-328-9
Annex
III
Entry number
97

Inventory links for MUSK KETONE

Inventory Restriction reference
Ref 35408

MUSK KETONE

CAS: 81-14-1
EC: 201-328-9

Direct matches are limited for this record, so nearby entries from Annex III are shown as well.

Annex III 96
Nearby record in the same annex

MUSK XYLENE

CAS: 81-15-2
EC: 201-329-4
Annex III 98
Nearby record in the same annex

SALICYLIC ACID

CAS: 69-72-7
EC: 200-712-3
Annex III 100
Nearby record in the same annex

TRICLOCARBAN

CAS: 101-20-2
EC: 202-924-1
Annex III 102
Nearby record in the same annex

METHYL EUGENOL

CAS: 93-15-2
EC: 202-223-0

What Annex III means for MUSK KETONE

MUSK KETONE is a restricted substance under Annex III of EU Cosmetics Regulation 1223/2009. Its use in cosmetics is only permitted under the specific conditions set out in the entry above, including applicable concentration limits, product type restrictions and required warning statements.

When including this substance in a formulation, all conditions — maximum concentration, product scope and warning labels — must be met simultaneously. Compliance with one condition does not override the others.

This record is linked to 1 CosIng inventory ingredient for name and identifier cross-reference. The page also surfaces 12 related annex records with overlapping identifiers, annex logic or naming patterns.

Compliance checklist

  • Ensure formulation concentration does not exceed: (a) 1.4% in fine fragrance (b) 0.56% in eau de toilette (c) 0.042% in other products
  • Confirm product type compatibility: All cosmetic products, with the exception of oral care products
  • Document conditions of use in the Product Information File (PIF).
  • This substance has CMR classification. Review the CMR table above and verify current Annex II/III status before use.

Frequently asked questions

MUSK KETONE is listed in Annex III of EU Regulation 1223/2009 as a restricted substance. It may only be used under the conditions specified in the entry, including any maximum concentration, product type limitation and required warning statements shown above.

CAS 81-14-1 is the unique numerical identifier assigned to MUSK KETONE by the Chemical Abstracts Service. In cosmetic compliance work, the CAS number is used to cross-reference the substance across regulatory databases, raw material specifications and safety assessment reports. Multiple EU annex entries may share the same CAS number if the same substance appears under different conditions or in different annexes.

MUSK KETONE has a CMR (carcinogenic, mutagenic or reprotoxic) classification under EU CLP Regulation. Under Article 15 of EU Cosmetics Regulation 1223/2009, CMR substances of category 1A or 1B are prohibited in cosmetics unless specifically permitted. Category 2 CMR substances may be used only if assessed safe by the SCCS. Always verify current annex status and any applicable derogations before use.

The maximum concentration of (a) 1.4% in fine fragrance (b) 0.56% in eau de toilette (c) 0.042% in other products applies to the concentration of the substance in the ready-to-use cosmetic product. When the substance is supplied as part of a blend or mixture, the calculation must account for the contribution of all sources in the formulation. The combined concentration must not exceed the stated limit.

Use the INCI Checker tool on this site to paste your full ingredient list (INCI) and scan it against all Annex II–VI entries. The tool highlights any ingredients that match restricted, prohibited or allergen-flagged records. This is useful for rapid compliance screening of finished product formulas or raw material declarations.
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Source note for Annex III record MUSK KETONE

This page summarizes one Annex III record for MUSK KETONE from public European Commission cosmetic materials and adds linked inventory or identifier matches when available.

Use this record page to review Annex III conditions for MUSK KETONE, but confirm any final regulatory decision against the current official annex wording and source files.

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