Description

3,2-Premercapturic Acid CAS NO 134958-26-2 is a specialized mercapturic acid derivative, serving as a critical biomarker and reference standard in toxicological and metabolic studies. Its primary value lies in its role for detecting and quantifying exposure to specific industrial chemicals and environmental toxins. This compound is essential for research institutions, contract research organizations (CROs), and pharmaceutical companies engaged in drug metabolism, occupational health monitoring, and advanced analytical method development.

Application

• Biomarker Reference Standard: Used as a high-purity calibrant in LC-MS/MS and HPLC analyses for biomonitoring studies.
• Toxicology Research: Critical for investigating the metabolic pathways and excretion profiles of specific xenobiotics.
• Occupational Health & Safety: Enables accurate measurement of worker exposure to certain industrial chemicals through urine analysis.
• Drug Metabolism and Pharmacokinetics (DMPK): Employed in studies to understand the conjugation and detoxification pathways of pharmaceutical compounds.
• Environmental Exposure Assessment: Supports studies measuring population-level exposure to environmental pollutants.
• Analytical Method Development: Serves as a key component in validating new, sensitive assays for mercapturate detection.
• Forensic Toxicology: Can be utilized in specialized forensic analyses to confirm specific chemical exposures.

Basic Information

Product Name	3,2-Premercapturic Acid
CAS No.	134958-26-2
Molecular Formula	C9H15NO5S
Molecular Weight	249.28 g/mol
Synonyms	N-Acetyl-S-(3,2-dihydroxypropyl)-L-cysteine; 3,2-DHPMA; N-Acetyl-S-(2,3-dihydroxypropyl)cysteine; Mercapturic Acid Derivative (3,2-isomer); S-(2,3-Dihydroxypropyl)-N-acetylcysteine; N-Acetyl-S-(2,3-dihydroxypropyl)-L-cysteine; Biomarker for 1,2:3,4-Diepoxybutane exposure; L-Cysteine, N-acetyl-S-(2,3-dihydroxypropyl)-
EINECS	Contact for details

Quality Control

Every batch of 3,2-Premercapturic Acid is produced and analyzed under strict quality management protocols. We guarantee high-purity material suitable for sensitive analytical applications, with comprehensive testing including identity confirmation, purity assay, and impurity profiling. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting compliance with our stringent 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). This product is hygroscopic (moisture-sensitive) and must be kept under anhydrous conditions. For long-term storage, consider storing under an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Specific Optical Rotation	Contact for details

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