Glycine
CAS No: 56-40-6
Chemical Name: Aminoacetic Acid
Molecular Formula: C?H?NO?
Molecular Weight: 75.07 g/mol
1. Product Description
Glycine is the simplest amino acid, appearing as a white crystalline powder with a sweet taste. It is non-toxic, odorless, and highly soluble in water. Glycine is widely used as a nutritional supplement, buffering agent, flavor enhancer, and pharmaceutical excipient.
2. Specifications – Food / Pharmaceutical Grade (USP / FCC / EP Compliant)
| Item | Specification / Typical Value | Test Method / Standard |
|---|
| Appearance | White crystalline powder | Visual |
| Identification | Positive for glycine | USP / FCC |
| Assay (C?H?NO?) | 98.5 – 101.5 % (on dry basis) | Titration / HPLC |
| Loss on Drying (105 °C) | ≤ 0.2 % | USP |
| Residue on Ignition (Ash) | ≤ 0.1 % | USP |
| pH (5 % solution) | 5.5 – 7.0 | 25 °C |
| Specific Optical Rotation | +0.1° to –0.1° | USP |
| Chloride (Cl?) | ≤ 0.007 % | USP |
| Sulfate (SO?2?) | ≤ 0.0065 % | USP |
| Ammonium (NH??) | ≤ 0.02 % | USP |
| Heavy Metals (as Pb) | ≤ 10 ppm | USP <231> |
| Lead (Pb) | ≤ 1 ppm | ICP |
| Arsenic (As) | ≤ 1 ppm | ICP |
| Cadmium (Cd) | ≤ 1 ppm | ICP |
| Mercury (Hg) | ≤ 0.1 ppm | ICP |
| Solubility | Freely soluble in water, insoluble in ethanol | FCC |
| Microbiological Limits | Total plate count ≤ 1000 cfu/g; Yeast & Mold ≤ 100 cfu/g; E. coli, Salmonella negative | ISO / USP |
3. Specifications – Feed / Industrial Grade
| Item | Specification / Typical Value |
|---|
| Appearance | White crystalline powder |
| Assay (C?H?NO?) | ≥ 98.0 % |
| Moisture | ≤ 0.3 % |
| Residue on Ignition | ≤ 0.3 % |
| Heavy Metals (as Pb) | ≤ 20 ppm |
| Loss on Drying | ≤ 0.5 % |
Typical Applications:
Feed additive for poultry and aquaculture
Intermediate in chemical synthesis
Buffering agent in electroplating or cosmetics
4. Typical Applications
Food & Beverage: Flavor enhancer, buffering agent, sweetener
Nutraceuticals: Amino acid supplement for wellness and recovery
Pharmaceuticals: Excipient, stabilizer, or API intermediate
Feed Nutrition: Improves protein utilization and animal growth
Industrial: Electroplating, cosmetics, biochemical research
5. Physical & Chemical Properties
| Property | Value |
|---|
| Appearance | White crystalline powder |
| Taste | Sweet, mild |
| Solubility | 25 g/100 mL water (25 °C) |
| Density | 1.607 g/cm3 |
| Melting Point | 240 °C (decomposes) |
| Stability | Stable under normal temperature and dry conditions |
6. Storage & Handling
Store in a cool, dry, well-ventilated area
Keep container tightly closed to prevent contamination and moisture absorption
Avoid exposure to direct sunlight and heat
Handle using GMP / HACCP standards for food and pharma applications
7. Packaging
| Grade | Packaging Options |
|---|
| Food / Pharma Grade | 25 kg fiber drum or multi-layer paper bag with PE liner |
| Feed / Industrial Grade | 25 kg woven bag or jumbo bag on request |
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