Benzoic acid, p-amino-, butyl ester
Synonyms
Benzoic acid, 4-amino-, butyl ester;
Butyl 4-aminobenzoate;
Butyl p-aminobenzoate;
Butyl PABA;
Category
Non-ionic surfactant
> Amine
>> Ester-group Amine
>>> Amino Acid Esters
Chemical Numbering System
CAS: 94-25-7
EINECS: 202-317-1
Molecular Formula & Molecular Weight
Molecular Formula: C11H15NO2; C11H15N1O2
Molecular Weight: 193.24
Structure
Properties
Appearance (1), white solid.
Solubility slightly soluble in water.
Stability stable. Under strong acid or strong alkali condition, easily hydrolyzed.
Risk Solid form: flammable material; irritation, irritation to skin, eye, respiratory system. Harmful products of combustion are CO, CO2, nitrogen oxides and so on. Contact with strong oxidants, can cause to burn.
GHS label: 
Animal Toxicity
Table 1 Animal toxicity values
|
mouse intraperitoneal LD50 |
67mg/kg[1] |
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent UV absorbing, dispersing, emulsifying, antistatic abilities.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Solid |
|
|
Actives, %, ≥ |
95.0 |
Test Methods
(1), Actives
GB/T 13173 Surface active agents -- Detergents -- Testing methods
2, Hazardous substances indexes
|
Item |
Hazardous substances indexes |
|
Solid |
|
|
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, Further explanation
(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.
Major Uses
1, Typical applications
Use as dispersing agent, emulsifying agent.
Use as antistatic agent.
Use as UV absorbing agent.
Manufacturers
References
[1]: ChemIDplus. 94-25-7, Butamben
Update: 20141015(1); 20200815(2);