Methyl-4-hydroxybenzoat 99,0-102,0% (durch Acidimetrie), EMPROVE® ESSENTIAL Ph. Eur., BP, JP, NF, FCC, SAFC®
Lieferant: MERCK PRODUCTION CHEMICALS
Synonyms:
4-Hydroxybenzoesäuremethylester
, Methylparaben
1.06757.5000EA
628
CHF
1.06757.5000
1.06757.9024
Methyl-4-hydroxybenzoat 99,0-102,0% (durch Acidimetrie), EMPROVE® ESSENTIAL Ph. Eur., BP, JP, NF, FCC, SAFC®
Methyl-4-hydroxybenzoat
Formel:
HOC₆H₄CO₂CH₃ MW: 152,15 g/mol Siedepunkt: 270…280 °C (1013 hPa) Melting Pt: 125…128 °C Dichte: 1,1208 g/cm³ (137 °C) Lager Temperatur: Raumtemperatur |
MDL Number:
MFCD00002352 CAS-Nummer: 99-76-3 EINECS: 202-785-7 Merck Index: 13,06129 |
Spezifikation Testergebnisse
Assay (Acidimetric) | 99.0 - 102.0 % |
Assay (HPLC) | 99.0 - 100.5 % |
Identity | passes test |
Appearance of solution | passes test |
Acidic substances | passes test |
Melting range (lower value) | ≥ 125 °C |
Melting range (upper value) | ≤ 128 °C |
Heavy metals (as Pb) | ≤ 10 ppm |
As (Arsenic) | ≤ 3 ppm |
Cd (Cadmium) | ≤ 10 ppm |
Cu (Copper) | ≤ 10 ppm |
Hg (Mercury) | ≤ 1 ppm |
Pb (Lead) | ≤ 2 ppm |
Zn (Zinc) | ≤ 10 ppm |
Related substances (HPLC) | passes test |
p-Hydroxy benzoic acid | ≤ 0.5 % |
Sum of all impurities | ≤ 1.0 % |
Largest unspecified impurity | ≤ 0.5 % |
Methanol (HS-GC) | ≤ 3000 ppm |
Other residual solvents (ICH Q3C) | excluded by manufactoring process |
Sulfated ash | ≤ 0.05 % |
Loss on drying (80 °C) | ≤ 0.5 % |
Corresponds to Ph Eur, BP, JP, NF, FCC |
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