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Global buyers entering the 2026 amino-acid market face a simple question: which Glycine Powder deserves trust?
The answer is rarely the cheapest quotation. It depends on grade, testing, traceability, and dependable supply. Food, pharmaceutical, cosmetic, and feed applications require different specifications. Buyers should verify assay results, moisture, solubility, heavy-metal limits, microbiological data, and packaging conditions. A clear Certificate of Analysis is essential. It is not enough.
Dr. Elena Marquez, an international amino-acid quality consultant, says, “Reliable Glycine Powder begins with transparent testing, not attractive pricing.”
That principle deserves attention. During supplier reviews, I would examine the production site, batch consistency, and change-control process. I would also request recent samples, not old laboratory material. A 25-kilogram bag should arrive sealed, clean, and clearly labeled. Small details often reveal large weaknesses.
For global purchasing teams, supplier qualification should include GMP evidence, audit records, export experience, and responsive technical support. Regional requirements may differ. Local regulatory review remains necessary.
A polished website proves little.
Some suppliers provide impressive documents but vague answers. That is a warning sign. Others offer excellent material but lack stable inventory. That problem is easy to underestimate. Price alone cannot measure business risk.
This guide compares leading Glycine Powder options for 2026. It considers purity, application suitability, documentation, production capacity, packaging, and buyer support. The evaluation is practical, but not perfect. Specifications can change. Market conditions can shift. Careful buyers should confirm every critical detail before signing a contract.
For global buyers, glycine powder should begin with a verified identity, not a marketing claim. Glycine is an amino acid with the molecular formula C2H5NO2. PubChem lists its CAS Registry Number as 56-40-6 and molecular weight as 75.07 g/mol. These two values should match the supplier’s specification sheet, certificate of analysis, and package label. Small discrepancies can signal transcription errors or poor document control.
The FAO/WHO JECFA specification framework treats identity, assay, loss on drying, and contaminant limits as important quality checks for food-grade materials. The USP-NF monograph also supports using compendial identity and purity testing when applicable. For procurement in 2026, request assay results, moisture data, heavy-metal testing, microbiological limits, particle-size information, and batch traceability. A clear COA matters. A low price does not prove quality. In practice, buyers should compare three recent batches, because one excellent report may hide inconsistent production.
Tips: Check “75.07 g/mol” exactly. Confirm CAS 56-40-6. Ask for independent testing when the application is sensitive. Verify storage conditions, since damp powder may cake during transport. One detail is often missed: an analytical-grade document may not support food or supplement use. Requirements differ by destination, and supplier statements can be incomplete. Review the current local rules before purchase.
| Category | Parameter | Verified or Commonly Reported Data | Relevance for Global Buyers |
|---|---|---|---|
| Identity | Substance name | Glycine; aminoacetic acid; 2-aminoacetic acid | Use the chemical name together with the CAS number to reduce identification errors during sourcing. |
| Identity | CAS Registry Number | 56-40-6 | A globally recognized identifier for glycine in technical documents, safety data sheets, and customs paperwork. |
| Identity | Molecular formula | C2H5NO2 | Useful for checking the chemical identity and calculating formulation quantities. |
| Identity | Molecular weight | 75.07 g/mol | Important for molar calculations, buffer preparation, nutritional formulations, and laboratory use. |
| Identity | EC number | 200-272-2 | Can support substance identification in European regulatory and safety documentation. |
| Physical properties | Appearance | White crystalline powder or crystals; odorless | Visual inspection can help identify moisture exposure, contamination, or abnormal discoloration. |
| Physical properties | Form | Solid amino acid; zwitterionic under normal solid-state conditions | Particle form and flow behavior should be matched to the buyer’s filling, blending, or dissolution process. |
| Physical properties | Water solubility | Soluble in water; solubility is temperature-dependent | Request a defined solubility test method when the product will be used in beverages, injections, or liquid formulations. |
| Physical properties | Solubility in organic solvents | Generally insoluble in ethanol and ether | Helps determine suitable cleaning, extraction, and formulation procedures. |
| Thermal data | Melting or decomposition behavior | Decomposes at approximately 233 °C | Storage and processing should avoid unnecessary high-temperature exposure; confirm the test method on the technical data sheet. |
| Acid-base properties | Isoelectric point | Approximately pH 5.97 | Relevant when designing protein-free buffers, cell-culture media, and pH-sensitive formulations. |
| Acid-base properties | Approximate pKa values | Carboxyl group: approximately 2.34; ammonium group: approximately 9.60 | Supports buffer selection and prediction of glycine’s charge state at different pH values. |
| Quality control | Identification testing | Common approaches include infrared spectroscopy, chromatography, or other validated identity tests | Ask for the actual test method and acceptance criteria rather than relying only on the product name. |
| Quality control | Assay or purity | Often specified as a high-purity amino-acid grade; the exact limit depends on the intended application | Compare the assay limit with the requirements for food, feed, laboratory, pharmaceutical, or industrial use. |
| Quality control | Loss on drying and moisture | Should be controlled according to the applicable product specification and test method | Moisture can affect flowability, weighing accuracy, caking, and long-term storage stability. |
| Quality control | Related substances and inorganic impurities | Acceptance limits should be defined for the intended grade and application | Request a batch-specific certificate of analysis with impurity results and applicable regulatory limits. |
| Packaging and storage | Recommended handling | Keep tightly closed in a cool, dry, well-ventilated area and protect from contamination and excessive moisture | Confirm packaging integrity, storage conditions, shelf life, and transportation controls before ordering internationally. |
| Documentation | Documents to request | Certificate of analysis, safety data sheet, specification sheet, allergen statement where relevant, and traceability information | Documentation helps buyers evaluate compliance, import requirements, and batch-to-batch consistency. |
| Application fit | Common uses | Buffer systems, laboratory reagents, biochemical research, animal nutrition, food formulations, and industrial applications | The appropriate grade, purity, microbiological limits, and regulatory status depend on the final use. |
