For any B2B procurement professional or R&D scientist in the chemical, pharmaceutical, or food industries, understanding product specifications is fundamental to making informed purchasing decisions. Riboflavin, commonly known as Vitamin B2, is a vital compound with specific quality parameters that dictate its suitability for various applications. This article aims to demystify these specifications, providing a clear guide for buyers looking to source high-quality Riboflavin Vitamin B2 from manufacturers and suppliers. Accurate understanding ensures you purchase the right product for your needs, whether for industrial use, pharmaceutical formulations, or food fortification.

The most critical specification for Riboflavin Vitamin B2 is its Assay, which indicates its purity. Typically expressed as a percentage, a high assay value (e.g., 98.0%-102.0%) signifies a high concentration of the active compound and minimal impurities. This is crucial for pharmaceutical applications where precise dosing is essential and for industrial processes where consistent performance is required. For food applications, adherence to specific food-grade standards is equally important, often indicated by compliance with pharmacopoeial monographs.

The Appearance of Riboflavin Vitamin B2 is characteristically described as a yellow to orange crystalline powder. Deviations from this description could indicate variations in processing, degradation, or contamination. This visual characteristic is often the first indicator of product quality and should align with the supplier's description and any provided samples.

Particle size is another specification that impacts usability. Often measured by sieve analysis (e.g., 100% pass through 60 mesh sieve), particle size affects the solubility, flowability, and blending properties of the powder. For applications requiring rapid dissolution or uniform dispersion, a fine and consistent particle size is preferred. Manufacturers can often control this parameter to meet specific formulation needs.

Loss on Drying (LoD) indicates the amount of volatile matter, primarily moisture, present in the product. A low LoD (e.g., ≤1.5%) is desirable as it signifies a more stable product that is less prone to degradation during storage and processing. High moisture content can lead to clumping, reduced shelf life, and affect the active concentration.

Heavy metals are strictly controlled contaminants in Riboflavin Vitamin B2, particularly for food and pharmaceutical grades. Limits are typically very low, often in the parts per million (ppm) range (e.g., <10 ppm). This specification is vital for ensuring consumer safety and regulatory compliance. Reputable manufacturers will have robust testing protocols to ensure their products meet these stringent limits.

Other specifications may include Specific Rotation (indicating optical purity), Residue on Ignition (related to inorganic impurities), and specific tests for related substances or degradation products. When you buy Riboflavin Vitamin B2, especially in bulk from a manufacturer in China, always request a detailed specification sheet. This document, alongside the Certificate of Analysis (CoA) for each batch, will provide the necessary assurance of product quality.

Understanding these specifications empowers buyers to make informed decisions, ensuring they procure Riboflavin Vitamin B2 that perfectly matches their application requirements. We are committed to providing transparent product information and high-quality Riboflavin Vitamin B2, backed by comprehensive specifications and reliable manufacturing practices.