| Chemical identity | Glycine is the simplest amino acid and is also known as aminoacetic acid. | Its simple molecular structure supports broad use in food, feed, pharmaceutical, chemical and laboratory applications. |
| CAS Registry Number | 56-40-6 | A globally recognized identifier that helps buyers compare specifications and avoid confusion with other amino acids. |
| Molecular formula | C2H5NO2 | The formula provides a consistent technical reference for regulatory documents, customs classification and quality control. |
| Molar mass | 75.07 g/mol | Useful for formulation calculations, concentration control and technical evaluation across international supply chains. |
| Physical appearance | White to off-white crystalline powder with a slightly sweet taste and generally low odor. | A uniform appearance makes incoming inspection, batch comparison and visual quality checks relatively straightforward. |
| Water solubility | Approximately 249 g/L in water at 25°C; the exact value can vary with test method and source. | Good water solubility supports use in liquid formulations, fermentation media, nutrient systems and aqueous processing. |
| Acid-base behavior | Glycine is amphoteric. Its reported pKa values are approximately 2.3 for the carboxyl group and 9.6 for the ammonium group at 25°C. | This buffering and zwitterionic behavior is relevant to formulation design and chemical processing. |
| Industrial production route | A widely used route reacts monochloroacetic acid with ammonia to form glycine and ammonium chloride as the principal inorganic by-product. | Understanding the route helps buyers evaluate process consistency, impurity profiles, wastewater controls and documentation. |
| Simplified reaction | ClCH2COOH + 2NH3 → NH2CH2COOH + NH4Cl | The reaction illustrates why chloride, ammonium and residual starting-material levels may be included in a certificate of analysis. |
| Alternative manufacturing methods | Other routes may include hydantoin hydrolysis or related chemical synthesis methods, depending on the producer and target grade. | Different routes can produce different impurity patterns, so buyers should request process information when purity or regulatory requirements are strict. |
| Typical commercial assay | Commercial grades commonly specify an assay around 98.5% to 99.5% or higher, depending on the intended application and applicable standard. | The required assay should be matched to the end use rather than selected by price alone. The exact acceptance limit must be confirmed on the specification sheet. |
| Common quality parameters | Typical controls include assay, identification, loss on drying or moisture, residue on ignition, chloride, heavy metals, iron, pH and particle size. | A standardized testing panel makes multi-country supplier qualification and lot-to-lot comparison more reliable. |
| Application sectors | Used in animal-feed formulations, food processing, pharmaceutical manufacturing, personal-care products, electroplating and chemical synthesis. | The broad application base can support diversified procurement and reduce dependence on a single downstream market. |
| Storage characteristics | Store in a tightly closed container in a cool, dry, well-ventilated area and protect from moisture and contamination. | Appropriate warehouse conditions help preserve powder flow, appearance and conformance during international transit and storage. |
| Packaging considerations | Common industrial packaging includes multi-wall bags, lined bags, drums or bulk formats; the selected format depends on grade, order size and logistics. | Packaging should be assessed for moisture protection, palletization, container loading efficiency and local import requirements. |
| Supplier documentation | Typical documents include a specification sheet, certificate of analysis, safety data sheet, lot traceability records and, where applicable, food- or pharmaceutical-related compliance documents. | Complete documentation supports customs clearance, internal quality approval and regulatory review in different destination markets. |
| Important sourcing note | Values shown are general technical references. Final purchasing decisions should be based on the current product specification, certificate of analysis, intended application, destination-country regulations and validated sample testing. |