| | Identification | More |  | [Name] 
 GALAXOLIDE
 |  | [CAS] 
 1222-05-5
 |  | [Synonyms] 
 1,3,4,6,7,8-HEXAHYDRO-4,6,6,7,8,8-HEXAMETHYLCYCLOPENTA[G]-2-BENZOPYRAN
 1,3,4,6,7,8-HEXAHYDRO-4,6,6,7,8,8-HEXAMETHYL-CYCLOPENTA-GAMMA-2-BENZOPYRAN
 ABBALIDE
 GALAXOLIDE
 GALAXOLIDE 50
 GALAXOLIDE 50 BB
 GALAXOLIDE 50 IPM
 HHCB
 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethyl-cyclopenta(g)-2-benzopyra
 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethyl-cyclopenta[g]-2-benzopyra
 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethylindeno(5,6
 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethylindeno(5,6-c)pyran
 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethylindeno[5,
 4,6,6,7,8,8-Hexamethyl-1,3,4,6,7,8-hexahydrocyclopenta[g]isochromene
 Galoxolide
 Musk50
 Pearlide
 HEXAMETHYLINDANOPYRAN
 Hexahydro-4,6,6,7,8,8-hexamethyl cyclopenta-γ-2-benzopyran
 Cyclopentag-2-benzopyran, 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethyl-
 |  | [EINECS(EC#)] 
 214-946-9
 |  | [Molecular Formula] 
 C18H26O
 |  | [MDL Number] 
 MFCD00217003
 |  | [Molecular Weight] 
 258.4
 |  | [MOL File] 
 1222-05-5.mol
 | 
 | Chemical Properties | Back Directory |  | [Melting point ] 
 57-58°
 |  | [Boiling point ] 
 304 °C(lit.)
 |  | [density ] 
 1.044 g/mL at 25 °C(lit.)
 
 |  | [vapor pressure ] 
 0.073Pa at 25℃
 |  | [refractive index ] 
 n20/D 1.5215(lit.)
 
 |  | [Fp ] 
 >230 °F
 
 |  | [storage temp. ] 
 Sealed in dry,Room Temperature
 |  | [form ] 
 clear liquid
 |  | [color ] 
 Colorless to Light yellow
 |  | [Odor] 
 at 100.00 %. strong diffusive sweet floral musk
 |  | [Odor Type] 
 musk
 |  | [Water Solubility ] 
 1.65mg/L at 25℃
 |  | [LogP] 
 5.3 at 25℃
 |  | [CAS DataBase Reference] 
 1222-05-5(CAS DataBase Reference)
 |  | [EPA Substance Registry System] 
 1,3,4,6,7,8-Hexahydro-4,6,6,7,8,8-hexamethylcyclopenta[g]-2-benzopyran (1222-05-5)
 | 
 | Safety Data | Back Directory |  | [Hazard Codes ] 
 Xi
 |  | [Risk Statements ] 
 R38:Irritating to the skin.
 |  | [Safety Statements ] 
 S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
 S36:Wear suitable protective clothing .
 |  | [RIDADR ] 
 UN 3082 9 / PGIII
 |  | [WGK Germany ] 
 3
 
 |  | [HS Code ] 
 2932.99.7000
 |  | [HazardClass ] 
 9
 |  | [PackingGroup ] 
 III
 |  | [Hazardous Substances Data] 
 1222-05-5(Hazardous Substances Data)
 |  | [Toxicity] 
 LD50 skin in rat: > 5gm/kg
 | 
 | Hazard Information | Back Directory |  | [Chemical Properties] 
 4,6,6,7,8,8-Hexamethyl-1,3,4,6,7,8-hexahydrocyclopenta[g]benzopyran is a viscous liquid with
a musk-like odor. It is one of the most frequently used synthetic, artificial musk
fragrances.The starting material for its synthesis is 1,1,2,3,3-pentamethylindane,
which is prepared by cycloaddition of tert-amylene to α-methylstyrene. The
pentamethylindane is hydroxyalkylated with propylene oxide in a Friedel–Crafts
reaction using aluminum chloride as a catalyst (analogous to the synthesis
of phenylethyl alcohol from benzene and ethylene oxide . Ring
closure of the resulting 1,1,2,3,3-pentamethyl-5-(β-hydroxyisopropyl)indane
is accomplished with paraformaldehyde and a lower aliphatic alcohol via the
acetal  or with paraformaldehyde and a carboxylic acid anhydride via the
acylate.
 The commercial product is diluted with solvents (e.g., diethyl phthalate, isopropyl
myristate, benzyl benzoate) to make it less viscous. It is alkali-stable and does not
discolor in light. Therefore, it is a popular ingredient of perfume compositions for
soaps, detergents, and cosmetics and is used in large amounts.
 |  | [Chemical Properties] 
 Clear Colourless to Pale Yellow Oil
 |  | [Uses] 
 Galaxolide is a polycyclic musk (PCM) used as a fragrance ingredient in perfumes, soaps, cosmetics and detergents.
 |  | [Definition] 
 ChEBI: An organic heterotricyclic compound that is 1,3,4,6,7,8-hexahydrocyclopenta[g]isochromene substituted by methyl groups at positions 4, 6, 6, 7, 8 and 8 respectively. It is a synthetic musk used as a fragrance in cosmetics.
 |  | [General Description] 
 
 1,3,4,6,7,8-Hexahydro-4,6,6,7,8,8-hexamethylcyclopenta[g]-2-benzopyran is an isochromone with a strong musk odor, commonly used in fragrances. |  | [Flammability and Explosibility] 
 Notclassified
 |  | [Trade name] 
 Galaxolide® (IFF), Astromusk (Agan),Musk YingHai (YingHai).
 | 
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