Quick Details
- Processing Time:45 days
- Port:Qingdao
- Supply Ability: 100 Metric Tons Per Month
- Brand Name:Sinoright
- CAS No.:58-08-2
- EINECS No.:200-362-1
- FEMA No.:2224 | CAFFEINE
- MF:C8H10N4O2
- Other Names:Caffeine anhydrous
- Place of Origin:China
- Type:White powder
- Brand Name:Sinoright
Description
Caffeine is an alkaloid purine belonging to the group of organic compounds called methylxanthines. Pure caffeine is a white, crystalline, bitter-tasting compound.
Caffeine is found in a number of plants, principally coffee and tea plants, as well as cola and cacao nuts. In plants, caffeine functions as a natural pesticide to deter insects.
Melting point
234-236.5 °C(lit.)
Boiling point
178°C
density
1.23
refractive index
1.6590 (estimate)
FEMA
2224 | CAFFEINE
Fp
178°C
storage temp.
2-8°C
solubility
Sparingly soluble in water, freely soluble in boiling water, slightly soluble in ethanol (96 per cent). It dissolves in concentrated solutions of alkali
benzoates or salicylates.
pka
pKa 0.6 (Uncertain)
form
Crystals or Crystalline Powder
color
Silky white or white
PH
pH (10g/l, 25℃) : 5.5～6.5
Water Solubility
20 g/L (20 ºC)
Sublimation
178 ºC
Merck
14,1636
BRN
17705
Stability:
Stable. Incompatible with strong acids, strong bases, strong oxidizing agents, iodine, silver salts, tannins. Weakly light sensitive in solution.
CAS DataBase Reference
58-08-2(CAS DataBase Reference)
NIST Chemistry Reference
Caffeine(58-08-2)
EPA Substance Registry System
1H-Purine-2,6-dione, 3,7-dihydro-1,3,7-trimethyl-
(58-08-2)
