Caffeine Anhydrous 98.5- 101.0% BP,USP, EP6

Caffeine is a central nervous system (CNS) stimulant of the methylxanthine class. It is the world's most widely consumed psychoactive drug, but unlike many other psychoactive substances it is legal and unregulated in nearly all parts of the world.

Conforms to BP209, USP32, EP6.1

Minimum Assay: 98.5 - 101.0% EP/USP
Molecular Formula: C₈H₁₀N₄O₂ 
Molecular Weight: 194.19 g/mol
Melting Point: 234.0 - 239.0 °C
Acidity: NMT 0.2ml of 0.01M Sodium Hydroxide is required to change the colour of the indicator to blue (BP/EP)
Carbonisable Substance: Pass
Sulphate (SO₄): Pass
Heavy Metals (as Pb): >0.001%
Sulphate: <500ppm
Alkalinity: No precipitate formed
Sulphated Ash: <0.1%

Related Substances:

Unspecified Impurities: <0.10%
Total: <0.1%
Disregard Limit: <0.05%

Chromatographic Purity:

Any inidividual impurities: <0.1%
Total Impurities: <0.1%

Loss on Drying: <0.5%
Residue on Ignition: <0.1%

Solubility:

Sparingly in water
Readily in boiling water
Slightly Soluble in Ethanol
Dissolves in concentrated solutions of alkali benzoates or salicylates

Cas Number: 58-08-2

Einecs Number: 200-362-1

HS Code / Commodity Code: 2939300000

Hazard Phrases: H302