2-ISOBUTYL-4-HYDROXY-4-METHYLTETRAHYDROPYRAN Chemical Properties

Boiling point:

93-95 °C(Press: 3 Torr)

Density 

0.9516 g/cm3

vapor pressure 

1Pa at 20℃

pka

14.69±0.40(Predicted)

Odor

at 100.00 %. fresh clean soft natural floral muguet linalool

Odor Type

floral

Water Solubility 

23g/L at 23℃

LogP

1.65 at 23℃

EPA Substance Registry System

2H-Pyran-4-ol, tetrahydro-4-methyl-2-(2-methylpropyl)- (63500-71-0)

2-ISOBUTYL-4-HYDROXY-4-METHYLTETRAHYDROPYRAN Usage And Synthesis

Application

2-ISOBUTYL-4-HYDROXY-4-METHYLTETRAHYDROPYRAN can be used in almost all types of perfumes, producing an elegant, diffused floral scent without altering the original fragrance characteristics. It has a long-lasting fragrance and is stable in perfumes, face creams, talcum powders, and other daily chemical products, making it an excellent fragrance raw material.

Chemical Properties

2-Isobutyl-4-methyltetrahydro-2H-pyran-4-ol is a colorless to pale yellow liquid with a fresh, soft, and natural floral odor.
Cyclocondensation of 3-methyl-3-buten-l-ol with 3-methylbutanal on silica gel and alumina in the absence of solvents is proposed for synthesis.The material consists of a cis/trans-isomer mixture. The proportion of the more valuable cis-isomer can be increased by using dilute sulfuric acid as catalyst.

Flammability and Explosibility

Non flammable

Trade name

Florol® (Firmenich), Florosa (Givaudan), Florosol (Innospec), Pyranol (BASF).

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