4-Hydroxybenzoic acid, methyl ester
time:2012-10-15 16:29:18,count:0

4-Hydroxybenzoic acid, methyl ester
Alias
Methyl p-hydroxybenzoate
Methyl 4-hydroxybenzoate
Benzoic acid, 4-hydroxy-, methyl ester
Methyl parahydroxybenzoate
Methylparaben
Category
Non-ionic surfactants-Phenol
CAS No.
99-76-3
Molecular Formula & Molecular Weight
Molecular Formula: C8H8O3
Molecular Weight: 152.15
Structural Formula
Properties
Appearance: white crystal powder.
Solubility: soluble in water; 25℃, 2.5g/L[1].
Stability: stable. at strong acid, strong alkali, easily hydrolyzed.
Risk: irritation, irritation to skin, eye.
Animal toxicity[1]: rat subcutaneous LD50: >500mg/Kg;
rabbit oral LD50: 6000mg/Kg;
guinea pig oral LD50: 3000mg/Kg;
mouse oral LD50: >8000mg/Kg;
mouse subcutaneous LD50: 1200mg/Kg;
mouse intraperitoneal LD50: 960mg/Kg.
Ecology: may be hazardous to environment. Water body should be given special attention.
Biodegradability: biodegradable.
Characteristics: excellent antimicrobial, antibacterial, preservative abilities. homologues, weakest bactericidal capacity.
Synthesis
 
Quality standards & test methods
item
physical and chemical indexes
test methods
actives*, %, ≥
98
 
*: should be marked on molecular weight.
Major Uses
Use as bactericide, preservative. eg: food, personal care products, medicine.
Manufacturers
 
References
[1]:http://toxnet.nlm.nih.gov/:99-76-3
Update: 20140929(1);

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