1,2-Hexanediol

CAS Number
6920-22-5
EC Number
230-029-6

What is 1,2-Hexanediol?

1,2-Hexanediol (CAS 6920-22-5), also known as 1,2-Dihydroxyhexane, is a short-chain diol used primarily as a multifunctional ingredient in personal care and industrial formulations.

Where is 1,2-Hexanediol used?

  • Personal care: humectant and skin-conditioning agent in moisturizers, serums and sunscreens, enhancing preservation systems
  • Coatings and adhesives: reactive diol for crosslinking resins, improving film flexibility and substrate adhesion
  • Home care and industrial cleaning: solubilizes fragrance oils and active ingredients in aqueous systems
  • It also supports emulsion stability in rinse-off and leave-on formulations.

Commercial specifications

  • Cosmetic-grade material meeting standard purity requirements is the most commonly traded specification
  • Bulk supply in drums and IBCs; smaller packaging for laboratory and development quantities

Other Names (Synonyms)

DL-1,2-Hexanediol|1,2-Dihydroxyhexane|5,6-Dihydroxyhexane|TR046Y3K1G|RefChem:412076|(±)-Hexane-1,2-diol|SYMDIOL 68

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What are the physical properties of 1,2-Hexanediol?

Melting Point 45°C
Boiling Point 91 °C @ Press: 4.5 Torr
Density 0.951 g/mL at 25 °C(lit.)
Flash Point >230 °F
Appearance CLEAR COLORLESS TO LIGHT YELLOW LIQUID
Color Clear colorless to light yellow
Odor Bland
Form Liquid
Water Solubility Miscible with water, lower aliphatic hydrocarbons and fatty acids.
Vapor Pressure 0.576Pa at 25℃
Refractive Index n 20/D 1.442(lit.)
Log P 0.58 at 25℃

How is 1,2-Hexanediol classified and handled safely? Learn More

Warning
GHS07· Irritant

Hazard Statements

H315 Causes skin irritation
H319 Causes serious eye irritation
H335 May cause respiratory irritation

Precautionary Statements

P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear protective gloves/protective clothing/eye protection/face protection.

Which trade and regulatory codes apply to 1,2-Hexanediol?

HS Code 29053990
WGK (Germany) 2
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