Overview
Methadone Standard is a high-purity reference material essential for calibrating instruments and validating methods in pharmaceutical and toxicology laboratories. It serves as a benchmark for quantifying methadone, a synthetic opioid used in pain management and addiction treatment. Certified reference materials (CRMs) like this undergo rigorous testing to ensure traceability and accuracy, complying with international standards such as ISO 17034. They are critical for regulatory compliance, ensuring drug formulations meet specified potency and purity requirements.
Physical and Chemical Properties
Methadone Standard typically appears as a white crystalline powder with a molecular weight of 309.45 g/mol. Its melting point ranges between 235-236°C, and it exhibits moderate solubility in organic solvents like ethanol and methanol but limited solubility in water. The compound’s stability is influenced by storage conditions; degradation can occur under prolonged exposure to light, heat, or humidity. Proper handling includes using amber vials and desiccants to maintain integrity. Analytical techniques such as HPLC and GC-MS rely on these properties for precise identification and quantification.
Main Applications
Primary applications include pharmaceutical quality control, where the standard ensures batch consistency of methadone formulations. Clinical laboratories use it to calibrate equipment for patient drug monitoring, particularly in opioid maintenance programs. Forensic labs employ Methadone Standard to confirm the presence and concentration of methadone in biological samples during postmortem or DUI investigations. Research institutions also utilize it to study drug metabolism and develop new analytical methods.
Safety and Storage
As an opioid derivative, Methadone Standard requires strict safety protocols. Use personal protective equipment (PPE) such as nitrile gloves and lab coats. Avoid skin contact and work in a fume hood to prevent inhalation. Storage must adhere to cold (2-8°C), dark, and dry conditions to prevent degradation. Unused portions should be resealed immediately. Institutions must comply with local regulations for handling controlled substances, including secure storage and usage logs.
B2B Procurement Guide
When procuring Methadone Standard, prioritize suppliers accredited under ISO 17034 or equivalent. Request a certificate of analysis (CoA) detailing purity, uncertainty, and traceability to primary standards like NIST. Compare prices across vendors, but avoid compromises on quality for cost savings. Bulk purchases may offer discounts, but ensure proper storage capacity. Verify shipping conditions (e.g., cold chain) and import/export permits, as methadone is a controlled substance in many jurisdictions.
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