Merck, PHR2838-500MG, Ampicillin

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
Application
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.
Ampicillin may be used as a pharmaceutical reference standard in the determination of the analyte in human plasma, urine, pharmaceutical formulations and bovine milk by spectrophotometric and chromatographic techniques.
Biochem/physiol Actions
Mode of Action: Ampicillin is a semisynthetic penicillin and a β-lactam antibiotic that inhibits bacterial cell-wall synthesis by inactivating transpeptidases on the inner surface of the bacterial cell membrane.

Mode of Resistance: Administration with β-lactamase cleaves the β-lactam ring of Ampicillin and inactivates it.

Antimicrobial Spectrum: Effective against both Gram-positive (similar to benzylpenicillin) and Gram-negative bacteria (similar to tetracyclines and chloramphenicol.
Analysis Note
These secondary standards offer multi-traceability to the USP and EP primary standards, where they are available.
Other Notes
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.