ISOFOL 12 is a primary, saturated alcohol with defined branching of the carbon chain. It can be chemically described as 2-butyl-1-octanol and is also referred to as C12 Guerbet alcohol. It is used in personal care. ISOFOL 12 is a light emollient, solvent, basic material for the production of emollient esters. For documents specific to a region, please contact Sasol using the 'Request Document' button.

Chemical Name: 2-butyloctan-1-ol

CAS Number: 3913-02-8

Functions: Anti-Foaming Agent, Intermediate

Chemical Family: Alcohols

Labeling Claims: Biodegradable

Synonyms: 2-Butyl-1-octanol, 2-Butyloctanol, 2-Butyloctyl alcohol, 5-(Hydroxymethyl)undecane, Butyloctanol, Butyloctyl alcohol, NSC 2414

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Identification & Functionality

Chemical Family
Chemical Name
Base Chemicals Functions
Industrial Additives Functions
EC No.

Features & Benefits

Labeling Claims

Applications & Uses

Base Chemicals End Uses
Recommended Uses & Known Applications

ISOFOL Alcohols and their derivatives are used as raw materials and intermediates in many application areas including:

  • Lubricants – converted to esters having improved hydrolytic stability and lower pour points than linear counterparts.
  • Cosmetics and Pharmaceuticals – an odorless ingredient of creams, lotions, and ointments.
  • Personal Care – sulfate derivative gives low foaming cleansing.


Physical Form
Clear colorless liquid
Typical Properties
ValueUnitsTest Method / Conditions
Refractive Index (nD20)approx. 1.443DIN 51423
Iodine Valuemax. 0.5mg I/100mg600-39
iC 12 OHmin. 97.0wt. %600-12a
Ester valuemax. 0.3mg KOH/g600-33
Acid numbermax. 0.05mg KOH/g600-31
Boiling Pointapprox. 243°C600-21
Flash pointapprox. 120°CDIN 51758
Molecular weightapprox. 186g/mol600-19
Hydroxyl value286 - 305mg KOH/g600-30
Water Contentmax. 0.1 wt. %DIN 51777
Color Valuemax. 10EN ISO 6271-2
Melting rangemax. -30°C600-27
Density (at 20°C)0.831 - 0.835g/mlDIN 51757
Viscosity (at 20°C)approx. 23mPa.s600-25

Regulatory & Compliance

Technical Details & Test Data

Melting points of ISOFOL alcohols in comparison with linear NACOL alcohols

The ISOFOL alcohols C12 to C24 are liquid at ambient temperature, whereas corresponding linear and saturated alcohols are solid. While oleyl alcohol starts to solidify at approx. 10 °C, ISOFOL alcohol of similar chain lengths remains liquid  

Sasol ISOFOL 12 Melting points of ISOFOL alcohols  in comparison with linear NACOL alcohols

ISOFOL alcohol viscosity vs temperature

The temperature-dependant kinematic viscosity of ISOFOL alcohols is shown in Figure

Sasol ISOFOL 12 ISOFOL alcohol viscosity vs temperature

ISOFOL alcohol density vs temperature

Sasol ISOFOL 12 ISOFOL alcohol density vs temperature

Packaging & Availability

Packaging Type

Storage & Handling

Shelf Life
48 months
Storage And Handling

Precautions for safe handling 

Advice on safe handling

  • Handle in accordance with good industrial hygiene and safety practice
  • Provide sufficient air exchange and/or exhaust in work rooms

Advice on protection against fire and explosion

  • The product is flammable but not readily ignited. Normal measures for preventive fire protection.

Fire-fighting class

  • B: Fires involving liquids or liquid containing substances. Also includes substances which become liquid at elevated temperatures

Conditions for safe storage, including any incompatibilities

Storage class (TRGS 510)

  • 10-13: German Storage Class 10 to 13

Other data 

  • Stable under normal conditions.