| ≥1 piece |
Ethyl p-Hydroxybenzoate
Product Number:SX2003
Chemical name: 4-Hydroxybenzoic acid ethyl ester
Product name:Ethyl 4-hydroxybenzoate
Molecular formula:C9H10O3
Molecular weight:166.18
CAS#:120-47-8
Physical and chemical properties:White crystal with a little bitter taste. Easily soluble in alcohol, ether and acetone, almost insoluble in water. Boiling point is 297-298ºC.
Quality standard
| Item | Index | ||
| GB 1886.31-2015 | BP | USP | |
| Appearance | White crystalline powder | Colorless crystal or white crystalline powder | / |
| Content (dry basis) %≥ | 99.0-100.5 | 99.0-100.5 | 98.0-102.0 |
| Melting pointºC | 115-118 | 115-118 | 115-118 |
| Acidity | / | Qualified | Qualified |
| Sulfate (SO42-) %≤ | 0.024 | / | / |
| Heavy metal (Pb) %≤ | 0.001 | / | / |
| Arsenic (AS) %≤ | 0.0001 | / | / |
| Drying loss %≤ | 0.50 | / | 0.50 |
| Residue on ignition %≤ | 0.05 | 0.1 | 0.1 |
| Mass fraction of free acid (PHBA)% ≤ | 0.55 | / | / |
| Related substances | / | Qualified | Qualified |
| Appearance | / | Clear and transparent | Qualified |
| Identification test | / | Qualified | Qualified |
Uses: the product is mainly used as preservative of foods, cosmetics, drugs, 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