Description

Dl-Phenylmercapturic Acid CAS NO 20640-68-0 is a key mercapturic acid metabolite, serving as a critical biomarker for monitoring human exposure to specific aromatic compounds. Its primary value lies in providing a reliable and quantifiable measure for toxicological and occupational health studies. This compound is essential for researchers and analytical laboratories in the fields of biomonitoring, environmental science, and pharmaceutical development, where precise metabolite analysis is required.

Application

• Biomarker for Exposure Assessment: Used in toxicology to monitor human exposure to benzene and other aromatic hydrocarbons.
• Clinical Research: Employed in studies investigating metabolic pathways and detoxification processes.
• Environmental Monitoring: Serves as a reference standard in analyzing biological samples for occupational and environmental health studies.
• Pharmaceutical R&D: Utilized as an intermediate or reference compound in the development of drugs targeting metabolic enzymes.
• Analytical Chemistry: Acts as a high-purity standard for calibration in HPLC, LC-MS, and GC-MS methods.
• Regulatory Compliance Testing: Supports testing protocols for workplace safety and compliance with health exposure limits.

Basic Information

Product Name	Dl-Phenylmercapturic Acid
CAS No.	20640-68-0
Molecular Formula	C11H13NO3S
Molecular Weight	239.29 g/mol
Synonyms	N-Acetyl-S-phenyl-L-cysteine; DL-PMA; Phenylmercapturic Acid; N-Acetyl-S-phenylcysteine; S-Phenyl-N-acetylcysteine; S-Phenylmercapturic Acid; Benzene Metabolite; N-Acetyl-3-(phenylthio)alanine
EINECS	Contact for details

Quality Control

Our Dl-Phenylmercapturic Acid is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity verification and identity confirmation by spectroscopic methods, to ensure it meets the high standards required for research and analytical applications. A detailed Certificate of Analysis (COA) is provided with every shipment, guaranteeing traceability and compliance with your specifications.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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