Lidocaine / Lidocaine HCL / Procaine/ Procaine HCL / Benzocaine / Benzocaine HCL / Tetracaine CAS number 137-58-6 / 94-09-7 / 59-46-1 / 94-24-6 Appearance:white or yellow powder /liquild / crystalline powder Application:ollodion ,nitrocellulose, varnish,art Purity:99.9%min DeliveryTime:Within 24 ho...... More Info