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Sodium Propyl p-Hydroxybenzoate 4-Hydroxybenzoic acid butyl ester CAS: 94-26-8
Chemical name: 4-Hydroxybenzoic acid butyl ester
Product name:Butyl paraben
Molecular formula:C11H14O3
Molecular weight:194.23
Structural formula:
CAS#:94-26-8
Physical and chemical properties:White crystal, with a little special odor. Soluble in alcohol, ether and trichloromethane, poorly soluble in water.
Uses: 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.
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 | / |
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