DY156618
652-37-9
211-490-2
C9H10N4O4
theophyllin-7-ylacetic acid
Index name | Specifications |
Appearance | White to off-white crystalline powder |
Melting point | 268 to 274degC |
Chloride | 500ppm max |
Loss on drying | 0.5%max |
Related substances (HPLC) | Total impurities: 1.0%max |
Theophylline: 0.5%max | |
Sulphated ash | 0.15%max |
Assay (HPLC) | 98.0%min (on dry basis) |
Index name | Specifications |
Appearance | White to off-white crystalline powder |
Melting point | 268 to 274degC |
Chloride | 500ppm max |
Loss on drying | 0.5%max |
Related substances (HPLC) | Total impurities: 1.0%max |
Theophylline: 0.5%max | |
Sulphated ash | 0.15%max |
Assay (HPLC) | 98.0%min (on dry basis) |
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