Caféine 98.5%, Conforme aux spécifications analytiques BP, USP
Marques : Thermo Fisher ScientificTotal Evaluation: 0
Moyenne des Notes : 0.0 sur 5
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Attention
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Synonyme(s):
3,7-Dihydro-1,3,7-triméthyl-1H-purine-2,6-dione
Formule:
C₈H₁₀N₄O₂ Point de fusion: 234…239 °C Densité: 1,23 g/cm³ Température de stockage: Température ambiante |
Numéro MDL:
MFCD00005758 Numéro CAS: 58-08-2 EINECS: 200-362-1 UN: 1544 ADR: 6.1,III Indice Merck: 13,01636 |
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Résultats des tests de spécification
Appearance | White or almost white Crystalline powder or crystals |
Infrared spectrum | Conforms |
Melting point | 234 to 239 °C |
Loss on drying | ≤0.5 % |
Sulfated ash | ≤0.1 % |
HPLC | ≤0.1 % (total impurities) |
Appearance of solution | (0.5g in 50 ml water) Clear colorless |
Acidity | ≤0.2 ml of 0.01M NaOH |
Titration with HClO4 | 98.5 to 101.0 % (On anhydrous substance) |
Sulfate (SO4) | ≤500 ppm |
Heavy metals (as Pb) | ≤10 ppm |
Residual solvents | Meets the requirements |
Organic volatile imp. | Meets the requirements |
Other alkaloids | no precipitate is formed |
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