English name: Adenine sulfate, 6-Aminopurine hemisulfate salt, 1H-Purin-6-amine sulfate Other names: adenine sulfate, adenosine sulfate, sulfuric acid 6-aminopurine, 1H-purine-6-amine sulfate, sulfate pancreatic Alkali CAS No.: 321-30-2 (C5H5N5) 2?H2SO4?2H2O=404.37 Level: High Purity Grade Content: ≥98.0% Loss on drying: ≤1.0% Heavy metal: ≤0.001% Character: white or off-white crystalline powder, Soluble in hot water, slightly soluble in cold water sensitive to light. It melts at about 200°C after drying at 110°C and decomposes slightly. 1G dissolved in 150ml water, soluble in sodium hydroxide solution, slightly soluble in ethanol. It is not precipitated by iodine test solution or potassium iodide test solution, but it can be precipitated by trinitrophenol. The maximum absorption wavelength at pH 2 was 260.5 nm (ε 13200), the minimum absorption wavelength was 229 nm, and the absorbance ratio A 250 / A 260 = 0.76, A 280 / A 260 = 0.38 Purpose: biochemical studies. medicine analysis. Save: RT, protected from light