Theophylline
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Theophylline

CAS 58-55-9
Structure
Synonyms Acet-theocin
IUPAC Name 1,3-Dimethyl-7H-purine-2,6-dione
Molecular Weight 180.16
Molecular Formula C7H8N4O2
Canonical SMILES CN1C2=C(C(=O)N(C1=O)C)NC=N2
InChI InChI=1S/C7H8N4O2/c1-10-5-4(8-3-9-5)6(12)11(2)7(10)13/h3H,1-2H3,(H,8,9)
InChI Key ZFXYFBGIUFBOJW-UHFFFAOYSA-N
Boiling Point 312.97 °C
Melting Point 271-273 °C
Flash Point 11 °C
Purity 98%
Density 1.3640 g/cm³
Refractive Index 1.6700
pKa 8.77(at 25 °C)
Appearance White powder

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