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Merck

PHR1158

Benzocaine

Pharmaceutical Secondary Standard; Certified Reference Material

Synonyme(s) :

4-Aminobenzoic acid ethyl ester, Ethyl 4-aminobenzoate

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A propos de cet article

Formule empirique (notation de Hill) :
C9H11NO2
Numéro CAS:
Poids moléculaire :
165.19
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
EC Number:
202-303-5
Beilstein/REAXYS Number:
638434
MDL number:
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InChI key

BLFLLBZGZJTVJG-UHFFFAOYSA-N

InChI

1S/C9H11NO2/c1-2-12-9(11)7-3-5-8(10)6-4-7/h3-6H,2,10H2,1H3

SMILES string

CCOC(=O)c1ccc(N)cc1

grade

certified reference material, pharmaceutical secondary standard

agency

traceable to USP 1054000

API family

benzocaine

CofA

current certificate can be downloaded

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

application(s)

pharmaceutical (small molecule)

format

neat

storage temp.

2-30°C

Quality Level

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General description

Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards.
Benzocaine is an ester-type local anesthetic, able to induce pain relief. It is used extensively in topical, mucosal and dermal formulations.

Application

Benzocaine may be used as a pharmaceutical reference standard for the determination of the analyte in bioadhesive gel, pharmaceutical formulations and channel catfish tissues by various chromatography techniques.
These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements.

Analysis Note

These secondary standards offer multi-traceability to the USP and EP (PhEur) primary standards, where they are available.

Other Notes

Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.
This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.
To see an example of a Certificate of Analysis for this material enter LRAA6506 in the slot below. This is an example certificate only and may not be the lot that you receive.
Values of analytes vary lot to lot.

pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Skin Sens. 1

Classe de stockage

11 - Combustible Solids

wgk

WGK 3

flash_point_f

233.6 °F

flash_point_c

112 °C


Certificats d'analyse (COA)

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Consulter la Bibliothèque de documents

Separation and simultaneous high-performance liquid chromatographic determination of benzocaine and benzyl benzoate in a pharmaceutical preparation.
Gigante B, et al.
Journal of Chromatography A, 549(5), 217-220 (1991)
A new validated method for the simultaneous determination of benzocaine, propylparaben and benzyl alcohol in a bioadhesive gel by HPLC.
Perez-Lozano P, et al.
Journal of Pharmaceutical and Biomedical Analysis, 39(5), 920-927 (2005)
A Szoke et al.
Journal of pharmaceutical and biomedical analysis, 16(1), 69-75 (1998-02-03)
Methods for extraction and gradient HPLC quantification were developed for benzocaine (BZ) and three of its metabolites to be used in conjunction with a reverse isotope technique. The metabolites were p-aminobenzoic acid (PABA), acetyl-p-aminobenzoic acid (AcPABA) and acetylbenzocaine (AcBZ). The
Sora Lee et al.
The Journal of general physiology, 139(6), 507-516 (2012-05-30)
Recent structural breakthroughs with the voltage-gated sodium channel from Arcobacter butzleri suggest that such bacterial channels may provide a structural platform to advance the understanding of eukaryotic sodium channel gating and pharmacology. We therefore set out to determine whether compounds
L F Rodriguez et al.
The Annals of pharmacotherapy, 28(5), 643-649 (1994-05-01)
To report a case of benzocaine-induced inethemoglobinemia and present a review of the related literature. An 83-year-old man received benzocaine topical anesthesia 600 mg prior to intubation for resection of a thyroid adenoma. The patient became severely cyanotic after induction

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