1,2,3,5,6,7-Hexahydro-1,1,2,3,3-pentamethyl-4H-inden-4-one TCI C4134

Chemical Identity

Other names: 1,1,2,3,3-Pentamethyl-1,2,3,5,6,7-hexahydro-4H-inden-4-one
CAS No.: 33704-61-9
PubChem: CID 92292
Formula: C14H22O
Molecular weight: 206.33 g/mol
Purity: >90.0%(GC)
Storage: 0-10°C
Reference databases: ChemSpider·ECHA·Wikipedia

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: 1,1,2,3,3-pentamethyl-2,5,6,7-tetrahydroinden-4-one
SMILES: CC1C(C2=C(C1(C)C)C(=O)CCC2)(C)C
InChIKey: MIZGSAALSYARKU-UHFFFAOYSA-N
MDL: MDL00216987

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Dokumen Keamanan & Mutu

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CoA (Certificate of Analysis)

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1,2,3,5,6,7-Hexahydro-1,1,2,3,3-pentamethyl-4H-inden-4-one (TCI C4134) is a bicyclic ketone built on a partially hydrogenated indanone skeleton that carries five methyl groups. In the fragrance industry, this compound is known by the trade name Cashmeran and is valued for its musky, woody, and soft odour character. TCI classifies it under terpenes in its biochemicals and reagents section. In the laboratory, it serves as a reference compound for aroma research, analytical fragrance chemistry, and environmental studies of polycyclic musk compounds.

Researchers choose this compound because its structure is compact and, as a heavily substituted ketone, it is reasonably stable. Ketones with this many substituents tend to resist side reactions under ordinary analytical conditions, so results stay more consistent from run to run. Its moderate volatility makes it well suited to gas chromatography with either flame ionisation detection (FID) or mass spectrometry. Because it is used in scented consumer products, it is also a relevant target when monitoring residues in water, sediment, and personal care products. Pure material from a trusted supplier makes it much easier to build reliable calibration curves.

In Indonesia, the cosmetics, soap, detergent, and household fragrance industries are growing quickly, so more laboratories need to identify and quantify fragrance ingredients. Quality control laboratories at fragrance and personal care manufacturers can use this compound as an analytical reference. University research groups working on aroma chemistry or environmental analysis can also use it in method development, and environmental testing laboratories can use it when tracing polycyclic musks in surface water and sediment samples.

Related TCI products

Aroma and fragrance research: as a well-defined musky, woody ketone known commercially as Cashmeran, it is a useful reference for studying odour character and structure-odour relationships.
Gas chromatography method development: its moderate volatility suits GC analysis with FID or mass spectrometry, making it practical for optimising separation and detection conditions for fragrance compounds.
Calibration standard preparation: pure material from TCI lets analysts prepare calibration curves to quantify this compound in fragrance formulations and finished consumer products.
Environmental monitoring of polycyclic musks: because it appears in scented consumer goods, it is a relevant target analyte when tracing musk residues in water and sediment samples.
Quality control of personal care products: cosmetics, soap, and detergent laboratories can use it as a reference to confirm identity and monitor fragrance ingredient levels in their products.

Brand	TCI (product code C4134)
CAS number	33704-61-9
Molecular formula	—
Purity	—
Category	Life Science > Biochemicals and Reagents > Terpenes
Pack sizes	please confirm the available pack sizes with our sales team before ordering
Physical form	refer to the TCI certificate of analysis and product label
Storage	follow the storage conditions on the TCI label and safety data sheet (SDS)

Store this compound in its original, tightly closed container in a cool, dry, well-ventilated area, away from direct sunlight, heat sources, and strong oxidising agents. Because the material is moderately volatile, keep containers sealed when not in use to limit evaporation and odour transfer to nearby samples. Glass containers with chemically resistant caps are suitable for any working portions. Wear standard laboratory protective equipment, including gloves, safety glasses, and a lab coat, and handle the material in a fume hood or well-ventilated area. Avoid contact with skin and eyes, and do not inhale vapours. Always check the TCI safety data sheet for specific storage temperatures, hazards, and disposal instructions before use.

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