Caffeine is a white crystaline powder used primarily as a stimulate in the consumption of beverages and food. It is also found in prescription medications.

Main applications of Caffeine

Used mainly in soft drinks, energy drinks, dietary supplments, beverages, pharmacalogical agent, inhalant supplement, protein bars, hot chocolate and breakfast cereals.

Soft Drinks

Energy Drinks

Dietary Supplments
Inhalant Supplement
Pharmacalogical Agent
Protein Bars
Hot Chocolate

Breakfast Cereals

Specification of Caffeine



Chemical formula

Formula: C8H10N4O2
Molecular weight: 194.2

Identification numbers

CAS number: 58-08-2


>95% through 40 mesh
>95% through 80 mesh

Physical properties

Appearance: White or almost white, crystalline powder or silky, white or almost white, crystals.

Solubility: Sparingly soluble in water, freely soluble in boiling water, slightly soluble in ethanol (96 percent). It dissolves in concentrated solutions of alkali benzoates or salicylates.

Compendial Requirements

Caffeine meets all requirements of EP8.0, BP2014, USP37, FCC8, when tested according to these compendia.

Identification (FCC)

Chemical reaction: Positive reaction
Infrared absorption: Conforms to the caffeine Reference Spectrum


Appearance of solution: Clear, colorless (EP/BP)
Heavy metals: ≤10ppm (USP)
Sulphates: ≤500ppm(EP/BP)
Acidity: Not more than 0.2ml of 0.01M sodium hydroxide(EP/BP)
Organic impurities: Any individual impurity ≤0.1% (USP)
Organic impurities: Total impurities ≤0.1% (USP)
Related substances: Each impurity A, B, C, D, E, F ≤0.10% (EP/BP)
Related substances: Each unspecified impurity ≤0.10% (EP/BP)
Related substances: Total impurities ≤0.1% (EP/BP)
Lead: ≤1mg/kg (FCC)
Other alkaloids: No precipitation generated (FCC)
Melting point: 235ºC~237.5ºC (FCC)
Readily carbonizable substances: Conform to the requirement (FCC)
Loss on drying: ≤0.5%(EP/BP)
Sulphate ash: ≤0.1%(USP)


98.5~101.0% (USP)

Handling - Storage

Keep in a tightly closed container,stored in a natural temperature ,ventilated area.
Protect against physical damage. Containers of this material may be hazardous when empty since they retain product residues (dust ,solids); observe all warnings and precautions listed for the product.

Format and presentation


Carton: 1×20kg

Documents of Caffeine

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