Butyl p-Hydroxybenzoate
Basic Information
Product Number: SX2005
Chemical name: 4-Hydroxybenzoic acid butyl ester
Product name: Butyl paraben
Molecular formula:C11H14O3
Molecular weight:194.23
Structural formula:
CAS No.:94-26-8
EINECS No. :202-318-7
Physical and chemical properties
Melting_point 69~72℃
Density :1.168g/cm3
Solubility:<0.1 g/100 mL at 17℃
Appearance:White crystal, with a little special odor.
Solubility: Soluble in alcohol, ether and trichloromethane, poorly soluble in water.
Detailed Description
Quality standard
|
Item
|
Index
|
|
BP
|
USP
|
Q/SH 010-2014
|
|
Appearance
|
Colorless crystal or white crystalline powder
|
/
|
/
|
|
Content (dry basis)%≥
|
99.0-100.5
|
98.0-102.0
|
99.0
|
|
Melting point℃
|
68-71
|
68-72
|
68-72
|
|
Acidity
|
Qualified
|
Qualified
|
Qualified
|
|
Sulfate (SO42-)%≤
|
/
|
/
|
0.024
|
|
Drying loss %≤
|
/
|
0.50
|
0.50
|
|
Residue on ignition %≤
|
0.1
|
0.1
|
0.10
|
|
P-hydroxybenzoic acid and salicylic acid%≤
|
/
|
/
|
0.10
|
|
Arsenic (AS)%≤
|
/
|
/
|
0.0001
|
|
Heavy metal (Pb)%≤
|
/
|
/
|
0.001
|
|
Appearance
|
Clear and transparent
|
/
|
/
|
|
Related substances
|
Qualified
|
/
|
/
|
|
Identification test
|
/
|
Qualified
|
/
|
|
Organic volatile impurities
|
/
|
Qualified
|
/
|
Application
This product is mainly used as organic synthesis intermediate, preservative and fungicide of medicines, cosmetics, films and high-grade products.
Packing
Plastic bag, 1kg/bag, 20 bags/carton, or fiber drum lined with plastic bag, net weight is 25kg or 50kg/drum.
*Special requirements can be negotiated
|
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