94-09-7
Product Name:
Benzocaine
Formula:
C9H11NO2
Synonyms:
4-Aminobenzoic acid ethyl ester;Benzocainum;Ethyl 4-aminobenzoate
Inquiry
CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Solid |
|---|---|
| Color/Form | Rhombohedra from ether |
| Boiling Point | 310 °C |
| Melting Point | 92 °C |
| Solubility | >24.8 [ug/mL] (The mean of the results at pH 7.4) |
| Vapor Pressure | 2.6X10-4 mm Hg at 25 °C /Estimated/ |
| LogP | 1.86 |
| Henry's Law Constant | Henry's Law constant = 1.6X10-8 atm-cu m/mole at 25 °C /Estimated/ |
| Stability/Shelf Life | Stable in air. |
| Dissociation Constants | 2.51 (at 25 °C) |
| Collision Cross Section | 148.2 Ų [M+H]+ [CCS Type: TW, Method: Major Mix IMS/Tof Calibration Kit (Waters)] |
| Kovats Retention Index | 1545 1516 1563 1523 1523 1513 1530 1578 1561 1526 1528 1560 1555 1513 1535 1555 1555 1563 1574 |
| Other Experimental Properties | Stable in air |
| Chemical Classes | Other Uses -> Pharmaceuticals |
SAFETY INFORMATION
| Signal word | Warning |
|---|---|
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H317:Sensitisation, Skin |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P272:Contaminated work clothing should not be allowed out of the workplace. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P333+P313:IF SKIN irritation or rash occurs: Get medical advice/attention. |
COMPUTED DESCRIPTORS
| Molecular Weight | 165.19 g/mol |
|---|---|
| XLogP3 | 1.9 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 3 |
| Rotatable Bond Count | 3 |
| Exact Mass | 165.078978594 g/mol |
| Monoisotopic Mass | 165.078978594 g/mol |
| Topological Polar Surface Area | 52.3 Ų |
| Heavy Atom Count | 12 |
| Formal Charge | 0 |
| Complexity | 151 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Benzocaine is a local anaesthetic in the ester group and is widely used for pain management. It reduces or relieves painful stimuli, such as pain caused by a needle prick. This type of anaesthesia provides more effective pain control and reduces patient anxiety. Benzocaine gel, liquid, and tablets are FDA approved. However, sprays are not FDA approved and 20% of sprays have been recalled because they contain benzene. Benzocaine has been used to relieve pain associated with pharyngitis. However, due to the risk of methemoglobinemia, use as directed by your doctor.