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Benzocaine
Pharmaceutical Chemistry

Benzocaine

Formula: C9H11NO2 GOST/CAS: CAS: 94-09-7

Benzocaine is a highly effective ester-type local anesthetic with low water solubility, making it an ideal component for topical (surface) anesthesia. The product appears as a white crystalline powder or colorless, odorless crystals with a slightly bitter taste that induces numbness of the tongue upon contact. Due to its rapid onset of action and minimal systemic absorption, benzocaine is widely utilized across the pharmaceutical, dental, and veterinary industries to manufacture a broad range of pain-relieving products.

Applications

Pharmaceutical Manufacturing: Serves as an Active Pharmaceutical Ingredient (API) for synthesizing ointments, gels, sprays, and suppositories designed to alleviate pain from skin irritations, burns, insect bites, and hemorrhoids.
Dentistry: Utilized in topical gels and sprays for pre-numbing the injection site prior to local anesthesia, as well as managing pain from canker sores and minor mucosal procedures.
Over-the-Counter (OTC) Products: Formulated into throat lozenges and cough drops to soothe throat irritation, as well as in specialized personal care medical devices (e.g., climax-control condoms).
Veterinary Medicine: Applied in the production of analgesic formulations, anti-itch remedies, and surface anesthetics for treating both small and large animals.

Key Advantages

Rapid Onset of Action: Provides almost instantaneous local pain relief (within 15–30 seconds post-application) by effectively blocking nerve impulse conduction.
Minimal Systemic Toxicity: Owing to its poor water solubility, the product undergoes virtually no systemic absorption into the bloodstream during topical application, significantly minimizing the risk of systemic side effects.
Excellent Compatibility: Readily dissolves in organic solvents (ethanol, ether, chloroform) and fatty oils, allowing seamless integration into various hydrophobic and alcohol-based formulations.
Stability and Safety: Maintains its chemical purity and potency over extended periods when stored under proper conditions, ensuring a predictable and reliable therapeutic outcome.

Storage & Transportation

  • Store in dry, cool, and well-ventilated warehouse environments within tightly sealed, original manufacturer packaging.
  • Protect from direct sunlight, moisture, and high temperatures. Keep away from strong oxidizing agents.
  • Transportable via all types of covered transport in strict compliance with standard freight regulations. Shelf life — 3 years.

Technical Specifications

Appearance White crystalline powder or colorless crystals
Molecular Weight ~ 165.19 g/mol
Melting Point 88.0 – 92.0 °C
Assay (Main Substance) ≥ 99.0%
Loss on Drying (Moisture) ≤ 0.5%
Residue on Ignition ≤ 0.1%

Supply info

  • Branded multi-layer paper bags or fiber drums containing a hermetic polyethylene inner liner, 25 kg net weight.
  • Custom smaller packaging configurations are available upon request and prior agreement with the customer.

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