Isoamyl alcohol
Synonyms
1-Butanol, 3-methyl-;
3-Methylbutan-1-ol;
Isopentyl alcohol;
FEMA No. 2057;
Category
Non-ionic surfactant
> Alcohol
>> Fatty Alcohol
Chemical Numbering System
CAS: 123-51-3
EINECS: 204-633-5
Molecular Formula & Molecular Weight
Molecular Formula: C5H12O
Molecular Weight: 88.15
Structure
Properties
Appearance (1), liquid.
Odor unpleasant odor.
Solubility soluble in water.
Stability stable.
Risk Liquid form: flammable material; irritation, irritation to skin, eye, respiratory system. Harmful products of combustion are CO, CO2 and so on. Contact with strong oxidants, can cause to burn.
GHS label: 
Animal Toxicity
Table 1 Animal toxicity values
|
cat intravenous LDLo |
210mg/kg[1] |
|
mouse intravenous LD50 |
234mg/kg[1] |
|
mouse intraperitoneal LDLo |
233mg/kg[1] |
|
mouse subcutaneous LDLo |
7480mg/kg[1] |
|
rabbit oral LD50 |
3438mg/kg[1] |
|
rabbit skin LD50 |
3.97mL/kg[1] |
|
rabbit intravenous LDLo |
1570mg/kg[1] |
|
rat oral LD50 |
1300mg/kg[1] |
|
rat intraperitoneal LDLo |
813mg/kg[1] |
Human Toxicity
Table 2 Human toxicity values
|
human inhalation TCLo |
150ppm[1] |
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent cleansing, dispersing, solubilizing, masking abilities.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Liquid |
|
|
Actives, %, ≥ |
95.0 |
Test Methods
(1), Actives
GB/T 13173 Surface active agents -- Detergents -- Testing methods
2, Hazardous substances indexes
|
Item |
Hazardous substances indexes |
|
Liquid |
|
|
Heavy metals (as Pb), mg/kg, ≤ |
20 |
|
As, mg/kg, ≤ |
3 |
Test Methods
(1), Heavy metals (as Pb)
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30799 The test method of food detergents -- Determination of heavy metals
(2), As
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30797 The test method of food detergents -- Determination of total arsenic
3, Product standards
(1), Chinese standards
(1a), HG/T 2891 Chemical reagent -- Isoamyl alcohol (3-Methyl-1-butanol)
4, Further explanation
(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.
(b), Used in cosmetics, should be test for harmful substances or furtherly test for microorganisms, according to local regulations and standards.
Major Uses
1, Typical applications
Use as solvent.
Use as intermediate in organic synthesis. For example, used in synthesis of perfume, lubricants.
Use as cleansing agent. For example, used in industrial cleaning.
2, Personal care products
Solvent, perfume in personal care products.
3, Food
Use as food additive (perfume).
Manufacturers
References
[1]: ChemIDplus. 123-51-3, Isoamyl alcohol
Update: 20130920(1); 20190915(2)