| ≥1 piece |
Methyl p-Hydroxybenzoate
Basic Information
Product number: SX2002
Chemical name: 4-Hydroxybenzoic acid, methyl ester
Product name: Methyl 4-hydroxybenzoate
Molecular formula:C8H8O3
Molecular weight:152.15
CAS No.:99-76-3
EINECS No: 202-785-7
Physical and chemical properties:
Density（20℃，4℃）：1.1208137.2
Density（25℃，4℃）：1.1097150.4
Melting point（℃）：131
Boiling point（℃,）：275
Freezing point（℃）：-131
Appearance: white crystal.
Solubility: Easily soluble in alcohol, ether and acetone, slightly soluble in water.
Product Details
Quality standard
|
Item |
Index |
||
|
Q/SH008-2014 |
BP |
USP |
|
|
Appearance |
/ |
Colorless crystal or white crystalline powder |
/ |
|
Content (dry basis)% |
≥99.0 |
98.0-102.0 |
98.0-102.0 |
|
Melting point℃ |
125-128 |
125-128 |
125-128 |
|
Acidity |
/ |
Qualified |
Qualified |
|
Sulfate (SO42-) %≤ |
0.024 |
/ |
/ |
|
Drying loss %≤ |
0.50 |
/ |
/ |
|
Residue on ignition %≤ |
0.1 |
0.1 |
0.1 |
|
P-hydroxybenzoic acid and salicylic acid %≤ |
0.1 |
/ |
/ |
|
Related substances |
/ |
Qualified |
Qualified |
|
Appearance |
/ |
Qualified |
Qualified |
|
Identification test |
/ |
Qualified |
Qualified |
Application
the product is mainly used as preservative for organic synthesis, drugs, cosmetics, and feeds.
Packing
Plastic bag, 1kg/bag, 20 bags/carton, or cardboard drum lined with plastic bag, net weight is 25kg or 50kg.
*Special requirements can be negotiated