Today is Add  |  Contact us  |  CHINESE
Location:Home > Products
Local Anesthetic >> Benzocaine >> Benzocaine Base

Product Name: Benzocaine
Chemical Name: Ethyl 4-aminobenzoate
Other Name: Anesthesin;Parathesin
CAS Number:94-09-7
EINECS Number:202-303-5
M.F.: C9H11NO2

Quality Standard:BP2009;EP7;USP35

Our Benzocaine is produced in GMP standard plant.

Benzocaine is a local anesthetic commonly used as a topical pain reliever, or in cough drops. It is the active ingredient in many over-the-counter anesthetic ointments (e.g., products for oral ulcers of Anbesol by Pfizer, Kank-a by Blistex, and Orabase B and Orajel by Church & Dwight). It is also combined with antipyrine to form A/B Otic Drops, (Brand name Auralgan) to relieve earpain and remove earwax.

Benzocaine has become the most commonly encountered sophisticated 'bulking agent' for cocaine in the UK.It is being imported in barrels, often 25 kilograms, and sold within the domestic cocaine market where it is used to at least double the weight of imported cocaine. This cocaine is often then repressed into a block and stamped with a logo to suggest it has been freshly imported to the UK from source or transit locations. Benzocaine is visually very similar to cocaine and therefore does not detract from the appearance of quality. One of the other features of this substance is that it remains within the cocaine when it is subjected to Crack manufacture and has subsequently been attributed the slang name of 'magic'. Previous less compatible and inert cutting agents are evaporated within the process and therefore expose extensive adulteration. Benzocaine increases the volume of crack produced and disguises the lower quality or purity as it binds to the cocaine becoming visually indistinguishable within the Crack. The influence of benzocaine has been a significant contributor to the remarkable price increase in high purity cocaine in the UK since 2007 and the very low street quality when sold in heavily adulterated grams.

Benzocaine is used as a key ingredient in numerous pharmaceuticals:

§  Over the counter throat lozenges such as Cepacol, Life Brand Oral Anaesthetic.

§  Some glycerol-based ear medications for use in removing excess wax as well as relieving ear conditions such as Otitis Media and swimmers ear.

§  Some previous diet products such as Ayds.

§  Some condoms designed to prevent premature ejaculation. Benzocaine acts to desensitize the penis, and theoretically allows an erection to be maintained.

Benzocaine is used in abalone aquaculture. The strong muscular foot which the abalone use to hold on to the rocks in the wild makes handling the animals difficult. Abalone farmers use benzocaine to mildly anaesthetise them, resulting in the animals loosening their tight grip on the substrate. This enables the farmers to more easily remove them and move them around the farm.






A white crystalline powder or colorless crystals


IR should comply with reference standard spectrum.

UV should comply with reference standard spectrum.

An oranged-red precipitate is performed

Melting Point

88 to 92

Readily carbonizable Substances

The resolution has no more color than matching fluid A.

Ordinary impurities

Max. 1%

Residual on ignition

Max. 0.1%

Heavy Metals

Max. 10 ppm



Loss on drying

Max. 0.5%

Assay by HPLC

on dried substance

98%to 102%



Total Aerobes Count

Yeast & Mold







Click:4344  Input time:2013-5-31 【Type】 【Return
CopyRight © Changzhou Longterm Biotechnology Co., Ltd.      Design By Ydoo        About us  |  Products  |  Message  |  Contact us