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Methyl p-Hydroxybenzoate 4-Hydroxybenzoic acid, methyl ester CAS: 99-76-3
Chemical name: 4-Hydroxybenzoic acid, methyl ester
Product name:Methyl 4-hydroxybenzoate
Molecular formula:C8H8O3
Molecular weight:152.15
CAS#:99-76-3
Physical and chemical properties: white crystal. Easily soluble in alcohol, ether and acetone, slightly soluble in water. Boiling point is 270-280℃.
Uses: 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
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
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/
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Content (dry basis)%
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≥99.0
|
98.0-102.0
|
98.0-102.0
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Melting point℃
|
125-128
|
125-128
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125-128
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Acidity
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/
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Qualified
|
Qualified
|
Sulfate (SO42-) %≤
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0.024
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/
|
/
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Drying loss %≤
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0.50
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/
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/
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Residue on ignition %≤
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0.1
|
0.1
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0.1
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P-hydroxybenzoic acid and salicylic acid %≤
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0.1
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/
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/
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Related substances
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/
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Qualified
|
Qualified
|
Appearance
|
/
|
Qualified
|
Qualified
|
Identification test
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/
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Qualified
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Qualified
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