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Xylocaine w/ Adrenaline is sterile, isotonic, and in addition, contains adrenaline acid tartrate and sodium metabisulfite 0.5 mg/mL as antioxidant. It contains no antimicrobial agent and should be used only once and any residue be discarded.
Xylocaine w/ Adrenaline has a pH of approximately 3-4.5.
The chemical abstracts service (CAS) number for lignocaine HCl [Australian approved name (AAN)], is 6108-05-0 and anhydrous lignocaine HCl is 73-78-9. The chemical name for lignocaine HCl is 2-Diethylaminoaceto-2'6'-xylidide HCl. The CAS number for adrenaline is 51-43-4. The chemical name for adrenaline is (R)-1-(3,4-Dihydroxyphenyl)-2-methylaminoethanol. The AAN is adrenaline.
Lignocaine base has a pKa of 7.85 (25°C), an oil/water coefficient of 2.9 and a molecular weight of 234.3.
Lignocaine is classed as a membrane-stabilising agent and is a local anaesthetic of the amide-type. It is extremely stable.
