Description

Penicillin K is a naturally occurring penicillin antibiotic derived from specific strains of the fungus *Penicillium*. This compound serves as a crucial intermediate and reference standard in pharmaceutical research and development, particularly for studying the structure-activity relationships of β-lactam antibiotics. It is essential for manufacturers and research institutions focused on antibiotic development, quality control, and biochemical analysis.

Application

• Pharmaceutical Reference Standard: Used as a certified standard for analytical testing, method validation, and quality control of related antibiotic products.
• Biochemical Research: Employed in studies investigating the mechanism of action, resistance, and biosynthesis pathways of penicillin-class antibiotics.
• Antibiotic Intermediate: Serves as a key starting material or intermediate in the synthetic and semi-synthetic production of specialized antibiotic formulations.
• Microbiological Studies: Utilized in laboratory settings to assess antimicrobial activity and for the calibration of microbiological assays.

Basic Information

Item	Detail
Product Name	Penicillin K
CAS No.	525-97-3
Molecular Formula	C14H20N2O4S
Molecular Weight	312.39 g/mol
Synonyms	Penicillin K; Penicillin III; Heptylpenicillin; 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 3,3-dimethyl-7-oxo-6-[(2-phenoxyacetyl)amino]- (2S,5R,6R)-; Phenoxymethylpenicillin K; F-1
EINECS	208-380-3

Quality Control

Our Penicillin K is produced and handled under strict quality management systems. Each batch undergoes comprehensive analytical testing, including identification by spectroscopic methods and purity determination by HPLC, to ensure it meets high-grade standards suitable for research and development. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed in a dry environment to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Related Substances (HPLC)	Total impurities ≤ 3.0%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.