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Glycine

Chemical Formula: C2H5NO2
​Molecular Weight: 75.07
​CAS No.​: 56-40-6
​EINECS No.​: 200-272-2

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Introduction

Glycine, also known as aminoacetic acid, is the simplest non-essential amino acid with both acidic and basic functional groups. This white to off-white crystalline powder is odorless, non-toxic, highly soluble in water but practically insoluble in ethanol or ether. As a zwitterion, it exhibits excellent buffering capacity and finds extensive applications across food, pharmaceutical, agricultural, and industrial sectors.

Specifications

Parameter Specifications
Appearance White crystalline powder
Identification Meet the requirement
Assay (C2H5NO2) % min 98.5
Loss on drying (105°C, 3h) % max 0.20
Residue on ignition % max 0.10
Lead (as Pb) ppm max 5.0
Arsenic (as As) ppm max 3.0

Features and Benefits

Key Advantages

  • Simplest amino acid with unique zwitterionic properties
  • Excellent water solubility and buffering capacity
  • Food grade purity for safe consumption
  • Versatile applications across multiple industries
  • Effective metal chelator and antioxidant
  • Stable under various processing conditions
  • GRAS (Generally Recognized As Safe) status

Applications

Food Industry

  • Flavor enhancer: Used in seasonings and processed foods
  • Preservative: Inhibits bacterial growth in fish paste products (1-2%)
  • Antioxidant: Extends shelf life of dairy products 3-4 times
  • Stabilizer: Maintains lard stability in baked goods (0.5% with 2.5% glucose)
  • Noodle additive: Improves texture and flavor (0.1-0.5%)
  • Taste buffer: Modifies saltiness and acidity in pickled foods

Pharmaceutical Industry

  • Buffer in antibiotic preparations
  • Raw material for L-dopa, vitamin B6, and threonine synthesis
  • Therapeutic agent for muscular disorders
  • Treatment for gastric hyperacidity and chronic enteritis
  • Reduces gastric irritation from aspirin
  • Nitrogen source in amino acid injections

Agricultural Applications

  • Livestock feed additive for amino acid supplementation
  • Intermediate for pyrethroid insecticides
  • Raw material for herbicide glyphosate production

Industrial Uses

  • Electroplating bath additive
  • Pharmaceutical intermediate
  • Cosmetic ingredient
  • Biochemical research reagent
Usage Tip: For food applications, typical usage levels range from 0.1% to 2% depending on specific function. Dissolve in water before incorporation for even distribution.

Packaging & Storage

Package: 25kg paper bags with inner PE liner

Shelf Life: 24 months when properly stored

Storage Conditions:

  • Store in dry, well-ventilated area
  • Protect from direct sunlight and moisture
  • Reseal tightly after each use
  • Keep separate from toxic or hazardous chemicals