Allantoin PABA
Synonyms
Allantoin, compd. with p-aminobenzoic acid;
Benzoic acid, 4-amino-, compd. with (2,5-dioxo-4-imidazolidinyl)urea (1:1);
Benzoic acid, p-amino-, compd. with allantoin (1:1);
Category
Non-ionic surfactant
> Amide
>> Lactams
Chemical Numbering System
CAS: 4207-42-5
EINECS: N/A
Molecular Formula & Molecular Weight
Molecular Formula: C11H13N5O5; C7H7N1O2.C4H6N4O3
Molecular Weight: 295.25
Structure
Properties
Appearance (1), white solid.
Solubility soluble in water.
Stability stable. pH: 4-9: 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 and so on. Contact with strong oxidants, can cause to burn.
GHS label: 
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent anti-inflammatory, UV absorbing, anti-oxidizing, growth-promoting 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 antioxidant.
Use as UV absorbing agent.
Manufacturers
Update: 20130916(1); 20190818(2);