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4-Hydroxybenzoic acid Methyl 4-hydroxybenzoate methyl ester
Product Basic Information:
Structure:
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℃.
Specification:
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 |
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
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