The efficacy, safety, and regulatory compliance of food additives hinge on their precise specifications. N-Acetyl-L-Cysteine (NAC), identified by CAS 616-91-1, is a crucial amino acid derivative used in various food applications. For manufacturers and formulators, understanding and sourcing NAC that meets stringent quality standards is non-negotiable. This guide explores the key specifications for NAC and highlights why partnering with a quality-conscious manufacturer is essential when you intend to buy this ingredient.

The Role of Specifications in N-Acetyl-L-Cysteine
Specifications for a chemical like NAC provide a detailed profile of its identity, purity, and acceptable levels of impurities. These parameters are critical for:

  • Ensuring Product Safety: They define limits for potentially harmful substances such as heavy metals, arsenic, and other contaminants.
  • Guaranteeing Functional Performance: Purity and physical characteristics, like appearance and solubility, ensure the NAC performs as expected in its intended application.
  • Meeting Regulatory Requirements: Compliance with recognized standards is mandatory for using ingredients in food products.
  • Facilitating Quality Control: Clear specifications enable both the manufacturer and the buyer to verify product quality.

Key Specifications for NAC (CAS 616-91-1)
When you look to buy N-Acetyl-L-Cysteine, particularly for food applications, you should pay close attention to specifications such as:

  • Appearance: Typically a white or off-white crystalline powder.
  • Identification: Often confirmed through Infrared (IR) absorption spectroscopy.
  • Assay (Purity): The percentage of pure NAC present, usually required to be between 98.5% and 101.0%.
  • Chloride (Cl): A limit on chloride content, often not more than 0.04%.
  • Ammonium (NH4): A low acceptable limit, typically not more than 0.02%.
  • Sulfate (SO4): Specifies the maximum allowable sulfate content.
  • Heavy Metals: Strict limits on metals like Lead (Pb), Cadmium (Cd), and Mercury (Mer) are essential for food-grade products. For instance, Lead might have a limit of not more than 3ppm.
  • Loss on Drying: Measures the water content, usually a very low percentage like not more than 0.5%.
  • Residue on Ignition: Indicates the amount of inorganic impurities remaining after incineration.

The Significance of AJI92 Compliance
The AJI92 specification is a widely recognized standard for N-Acetyl-L-Cysteine in Japan and internationally. Compliance with AJI92 signifies that the NAC has undergone rigorous testing and meets a high benchmark for quality and purity, making it suitable for demanding food additive applications. When you source NAC from a manufacturer, confirming AJI92 compliance is a critical step.

Sourcing High-Quality NAC from a Reputable Manufacturer
As a leading manufacturer and supplier of N-Acetyl-L-Cysteine in China, we are committed to providing products that meet and exceed these critical specifications. Our production processes are designed to ensure exceptional purity and consistency, adhering to standards like AJI92. We offer:

  • Certificates of Analysis (CoA): Detailed CoAs for every batch, listing all relevant specifications.
  • Quality Management Systems: Certified quality management processes (e.g., ISO9001).
  • Transparent Communication: Open dialogue about our product quality and sourcing.

Conclusion: Ensure Quality for Your Food Products
When you decide to buy N-Acetyl-L-Cysteine (CAS 616-91-1), prioritize quality and compliance. Partnering with a reputable Chinese manufacturer like us ensures you receive NAC that meets the necessary specifications for your food additive needs. Contact us today to learn more about our product specifications and how we can support your business with reliable, high-quality NAC.