Koffein ≥99,0%, AnalaR NORMAPUR® analytisches Reagens
Lieferant: VWR Chemicals
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Achtung
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Synonyme:
Methyltheobromin
, 7-Methyltheobromin
, 1,3,7-Trimethyl-2,6(1H,3H)-purindion
, Coffein
, Thein
, 2,6-Dihydroxy-1,3,7-trimethylpurin
, 3,7-Dihydro-1,3,7-trimethyl-1H-purin-2,6-dion
, 1,3,7-Trimethyl-3,7-dihydro-2H-purin-2,6-dion
, 1,3,7-Trimethylxanthin
, Teein
, Guaranin
, 1,3,7-Trimethyl-1H,3H-purin-2,6-dion
, 1,3,7-Trimethyl-3,7-dihydro-1H-purin-2,6-dion
22234.187EA
168
EUR
22234.187
Koffein ≥99,0%, AnalaR NORMAPUR® analytisches Reagens
Koffein
Formel:
C₈H₁₀N₄O₂ Molecular Weight: 194,19 g/mol Schmelzpunkt: 235…239 °C Dichte: 1,23 g/cm³ (19 °C) Lagertemperatur: Raumtemperatur |
MDL:
MFCD00005758 CAS-Nummer: 58-08-2 EINECS: 200-362-1 UN: 1544 ADR: 6.1,III Merck Index: 13,01636 |
Spezifikation Testergebnisse
Assay | Min. 99.0 % |
Appearance | White crystalline powder |
Acidity | Max. 0.005 meq/g |
Melting point | 235 - 238 °C |
Substances coloured by H2SO4 | Max. 60 APHA |
Heavy metals (as Pb) | Max. 10 ppm |
Ignition residue (SO4) | Max. 0.1 % |
Insolubility in water (± 100°C) | Max. 25 ppm |
Loss on drying (100°C) | Max. 0.5 % |
Theobromine | Max. 0.2 % |
Cl (Chloride) | Max. 100 ppm |
SO4 (Sulphate) | Max. 0.02 % |
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