Theophylline/1,3-Dimethyl-2,6-dioxo-1,2,3,6-tetrahydropurine
Item No.： PHA0152
Store at： RT，Avoid light
English Name: theophylline; 1,3-Dimethyl-2,6-dioxo-1,2,3,6-tetrahydropurine； 1,3-Dimethylxanthine； 3,7-Dihydro-1,3-dimethyl-1H-purine-2,6-dione
Other names: 1,3-dimethylxanthine; 2,6-dioxo-1,3-dimethylpurine; 3,7-dihydro-1,3-dimethyl-1h-purine-2,6-dione; 2,6-dihydroxy-1,3-dimethylpurine; Dioxidimethylpurine; 1,3-dimethyl-3,7-dihydro-1h-purine-2,6-dione; Tea alkali
CAS No.: 58-55-9
C7H8N4O2=180.16
Grade: br
Content: ≥ 98.0%
Chromatographic test: acceptable
Loss on drying: ≤ 1.0%
Molar absorption coefficient ε/ （L/cm·mol）：≥9500
Acidity (calculated by H +): ≤ 4 mmol / 100g
Physicochemical properties : white crystal. No smell. It tastes bitter. 1g is dissolved in 120ml water, 80ml ethanol, about 110ml chloroform, dissolved in hot water, alkali hydroxide solution, ammonia water, dilute hydrochloric acid and dilute nitric acid, and slightly dissolved in ether. The melting point is 270-274 ℃ (Monohydrate). The maximum absorption wavelength (0.1mol/l sodium hydroxide) is 274nm. Moderate toxicity, 50% lethal dose (rat, oral) 300mg / kg
Purpose: biochemical research. Phosphodiesterase inhibitor.
Save: RT, protected from light
