| Message: | Theophylline
CAS: 58-55-9
Synonyms: 1,3-Dimethyl-3,7-dihydro-1H-purine-2,6-dione;1,3-dimethyl-xanthin;1H-Purine-2,6-dione, 3,7-dihydro-1,3-dimethyl-;3,7-dihydro-1,3-dimethyl-1h-purine-6-dione;3h)-dione,1,3-dimethyl-purine-6(1h;6-dione,3,7-dihydro-1,3-dimethyl-1H-Purine-2;accurbron;Acet-theocin
MF.: C7H8N4O2
MW.: 180.16
EINECS:200-385-7
Melting Point: 271-273 °C
Flashing Point: 11 °C
Storage: 2-8°C
Solubility: 0.1 M HCl: soluble
Appearance: White crystal or crystalline powder
Stability: Stable. Incompatible with strong oxidizing agents
Test Items Specification Results
Description White to off white crystalline powder Comply
Melting point 166-170°C 167.3-168.1°C
Identification Positive reaction Positive reaction
Related substances ≤1.0% 0.16%
Loss on drying ≤0.5% 0.06%
Residue on ignition ≤0.1% 0.02%
Chloride ≤0.014% |
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