Benzocaine

Benzocaine is a kind of organic compound, chemical formula is C9H11NO2, colorless oblique crystal, odorless and tasteless, soluble in alcohol, ether, chloroform, soluble in almond oil, olive oil, diluted acid, difficult to dissolve in water, clinically used in wound, ulcer surface, burn, skin scratches and hemorrhoids analgesia, itching. Systemic toxicity is low, but mild sensitization.

This product is white crystalline powder, odorless, the color of the light gradually yellow.
This product is easily soluble in ethanol, trichloromethane or ether, slightly soluble in fat oil, and very slightly soluble in water.
The melting point of this product is 88 ~ 91℃.

1. UV absorbers. They are mainly used in sunscreen and tanning cosmetics, and are chemically stable to light and air. They are safe for the skin and have the ability to form a film on the skin. They can effectively absorb ultraviolet rays in the long-wave region of 280-320nm. The addition amount is usually around 4%.

2. Local anesthetics, used for itching and pain relief on wound surfaces, ulcers, hemorrhoids, etc. The concentration used is 5%-20%. They are also used as intermediate in drug synthesis and organic synthesis.

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Benzocaine is a lipophilic surface anesthetic that has a weaker action than several other local anesthetics such as lidocaine and prilocaine. This means that when it is applied to mucous membranes, it does not cause discomfort due to anesthetic effects. It is a lipophilic drug that is easily combined with the lipid layers of mucous membranes or skin, but it is not easily absorbed into the body and does not produce toxicity.

Benzocaine can be used as a precursor for anesthetics such as oxolane and oxolacaine; it is also used in medicine as a local anesthetic with pain-relieving and anti-itch properties. It is primarily used for anesthesia and pain relief in wounds, ulcers, mucous membranes, hemorrhoids, and pruritus. Its cream can also be used as a lubricant and analgesic for nasal and oral endoscopes. It temporarily relieves pain and itching of the skin, and is effective for mild burns, sunburns, wounds, insect bites, and acute purulent and serous otitis externa. It is also effective for toothache, pharyngitis, oral ulcers, various hemorrhoids, anal fissures, and vulvitis. It is used as a male genital desensitizer to slow down ejaculation, or as an anesthetic and lubricant for catheters and endoscope tubes.