Description

n-Acetyl-S-(3-Carboxy-1-Methylpropyl)-L-Cysteine is a specific, high-purity metabolite of the industrial chemical 1,3-butadiene, used as a critical biomarker in toxicological and occupational health studies. Its precise quantification is essential for accurate biological monitoring and exposure assessment in industrial and research settings. This compound is primarily required by analytical laboratories, contract research organizations (CROs), and pharmaceutical companies engaged in metabolism studies, biomarker validation, and regulatory safety testing.

Application

• Biomarker for 1,3-Butadiene Exposure: Used as a definitive urinary metabolite to monitor occupational and environmental exposure to 1,3-butadiene in industrial settings like synthetic rubber and plastic manufacturing.
• Toxicology and Metabolism Research: Serves as a key reference standard in studies investigating the metabolic pathways, pharmacokinetics, and detoxification mechanisms of 1,3-butadiene.
• Analytical Method Development & Validation: Employed as a certified reference material (CRM) for calibrating LC-MS/MS, HPLC, and GC-MS systems to ensure accurate and reproducible bioanalytical data.
• Occupational Health & Safety Programs: Integral to biological monitoring programs designed to assess worker safety, comply with health regulations, and implement exposure control strategies.
• Epidemiological Studies: Used in large-scale population studies to investigate correlations between 1,3-butadiene exposure levels and potential health outcomes.
• Pharmaceutical Impurity Profiling: Can be utilized in the analysis and control of potential genotoxic impurities (PGIs) in pharmaceutical products where related structures may be present.

Basic Information

Product Name	n-Acetyl-S-(3-Carboxy-1-Methylpropyl)-L-Cysteine
CAS No.	33164-65-7
Molecular Formula	C11H17NO6S
Molecular Weight	291.32 g/mol
Synonyms	N-Acetyl-S-(3-carboxy-1-methylpropyl)-L-cysteine; N-Acetyl-S-(3-carboxy-1-methylpropyl)cysteine; Mercapturic Acid of 1,3-Butadiene; 1,3-Butadiene Mercapturic Acid (BDMA); DHBMA (Dihydroxybutyl Mercapturic Acid) - related metabolite; N-Acetyl-S-(1,2-dihydroxy-3-buten-1-yl)-L-cysteine (epoxide-derived precursor); N-Acetyl-S-(3,4-dihydroxybutyl)-L-cysteine; Contact for details on additional trade names or identifiers.
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards for reference materials and high-purity biochemicals. Each batch is characterized using advanced analytical techniques including HPLC, MS, and NMR to confirm identity and purity. Certificates of Analysis (COA) with detailed chromatographic data and spectroscopic confirmation are available upon request. We adhere to strict quality management protocols suitable for research and analytical applications.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C in a dry, cool place. This product is hygroscopic (moisture-sensitive); ensure the container is sealed tightly after each use to minimize exposure to atmospheric humidity. For long-term storage, consider desiccant in the storage environment.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 95.0% (Area %)
Water Content (KF)	≤ 5.0 %
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.5 %

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