Methyl-4-hydroxybenzoat 99,0-102,0% (durch Acidimetrie), EMPROVE® ESSENTIAL Ph. Eur., BP, JP, NF, FCC, SAFC®

Lieferant: MERCK PRODUCTION CHEMICALS

Synonyme: 4-HydroxybenzoesäuremethylesterMethylparaben

1.06757.5000EA 975 EUR
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
Molekulargewicht: 152,15 g/mol
Siedepunkt: 270…280 °C (1013 hPa)
Schmelzpunkt: 125…128 °C
Dichte: 1,1208 g/cm³ (137 °C)
Lagerungstemperatur: Raumtemperatur
MDL Number: MFCD00002352
CAS-Nummer: 99-76-3
EINECS: 202-785-7
Merck Index: 12,06182
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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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