| ≥1 piece |
Methyl p-Hydroxybenzoate
product number: SX2002
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 270-280ºC.
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 pointºC | 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