Benzyl 4-hydroxybenzoate
Synonyms
Benzoic acid, p-hydroxy-, benzyl ester;
Benzyl p-hydroxybenzoate;
Benzyl Hydroxybenzoate;
Category
Non-ionic surfactant
> Phenol
>> Ester-group Phenol
Chemical Numbering System
CAS: 94-18-8
EINECS: 202-311-9
Molecular Formula & Molecular Weight
Molecular Formula: C14H12O3
Molecular Weight: 228.24
Structure
Properties
Appearance (1), white to pale yellow crystal.
Solubility insoluble in water. Soluble in ethanol.
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 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 antimicrobial, antibacterial, preservative 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, Product standards
(1), Chinese standards
(1a), Chinese Pharmacopoeia (2015 Edition) Benzyl Hydroxybenzoate
4, 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 antimicrobial agent, preservative.
2, Medicine
Pharmaceutical excipient, use as bacteriostat. (This section is for reference only, should be implemented according to local Pharmacopoeia.)
3, Organic synthesis
Use as intermediate in organic synthesis. For example, used in synthesis of liquid crystals, dyes.
4, Dye
Thermosensitive color developing agent in dyes, recording paper.
Manufacturers
Update: 20141014(1); 20190908(2)