4-Hydroxybenzoic acid methyl ester, 250 g
≥98 %, Ph.Eur.
H412
harmful to aquatic life with long lasting effects
P273
avoid release to the environment
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Methylparaben, Methyl-p-hydroxybenzoate
Empirical formula C8H8O3
Molar mass (M) 152,15 g/mol
Density (D) 1,38 g/cm³
Boiling point (bp) 280 °C
Melting point (mp) 128 °C
WGK 1
CAS No. [99-76-3]
EG-Nr. 202-785-7
Molar mass (M) 152,15 g/mol
Density (D) 1,38 g/cm³
Boiling point (bp) 280 °C
Melting point (mp) 128 °C
WGK 1
CAS No. [99-76-3]
EG-Nr. 202-785-7
€23.15/Pack Qty.
excl. VAT. | 250 g per Pack Qty.
Art. No. 3646.2
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Product details
4-Hydroxybenzoic acid methyl ester ≥98 %, Ph.Eur.
Technical Information
| Checked according to pharmacopoeia | Ph.Eur. |
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4-Hydroxybenzoic acid methyl ester
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| Order No. | Pack Qty. | Pack. | Price | Quantity | ||
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| 3646.1 | 100 g | plastic | €17.10 |
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| 3646.2 | 250 g | plastic | €23.15 |
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| 3646.3 | 500 g | plastic | €39.70 |
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| 3646.4 | 1 kg | plastic | €69.80 |
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Certificates of Analysis
Type analysis
| Appearance | white to almost white powder |
| Appearance of solution (10 % in ethanol 96 %) | complies |
| Assay (HPLC) | 98,0-102,0 % |
| Identity | complies |
| Melting point | 125-128 °C |
| Acidity (0,1 M NaOH/0,2 g) | complies |
| Sulphated ash | ≤0,1 % |
| Related substances (p-HBA) | ≤0,5 % |
| Related substances (unspecific impurities) | ≤0,5 % |
| Related substances (total) | ≤1,0 % |
| Volatile organic impurities | complies |
| Residual solvents (methanol) | ≤0,3 % |