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 degre celsius）：1.1208137.2
Density（25degre celsius，4degre celsius）：1.1097150.4
Melting point（degre celsius）：131
Boiling point（degre celsius,）：275
Freezing point（degre celsius）：-131
Appearance: white crystal.
Solubility: Easily soluble in alcohol, ether and acetone, slightly soluble in water.
Product Details
Quality standard
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Item
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Index
|
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Q/SH008-2014
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BP
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USP
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Appearance
|
/
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Colorless crystal or white crystalline powder
|
/
|
|
Content (dry basis)%
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Min. 99.0
|
98.0-102.0
|
98.0-102.0
|
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Melting pointdegre celsius
|
125-128
|
125-128
|
125-128
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|
Acidity
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/
|
Qualified
|
Qualified
|
|
Sulfate (SO42-) %max.
|
0.024
|
/
|
/
|
|
Drying loss %max.
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0.50
|
/
|
/
|
|
Residue on ignition %max.
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0.1
|
0.1
|
0.1
|
|
P-hydroxybenzoic acid and salicylic acid %max.
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0.1
|
/
|
/
|
|
Related substances
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/
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Qualified
|
Qualified
|
|
Appearance
|
/
|
Qualified
|
Qualified
|
|
Identification test
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/
|
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
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