Caffeine suppliers
Caffeine
- CAS:
- 58-08-2
- MF:
- C8H10N4O2
- MW:
- 194.19
Properties
- Melting point:
- 234-236.5 °C(lit.)
- Boiling point:
- 178°C
- Density
- 1.23
- refractive index
- 1.6590 (estimate)
- FEMA
- 2224 | CAFFEINE
- Flash point:
- 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
- Odor
- at 100.00 %. odorless
- Odor Type
- odorless
- 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.
- LogP
- -0.07
Safety Information
- Symbol(GHS)
GHS07
- Signal word
- Warning
- Hazard statements
- H302
- Precautionary statements
- P301+P312+P330
- Hazard Codes
- Xn,T,F
- Risk Statements
- 22-25-39/23/24/25-23/24/25-11
- Safety Statements
- 16-36/37-45-7
- RIDADR
- UN 1544 6.1/PG 3
- WGK Germany
- 1
- RTECS
- EV6475000
- F
- 10
- TSCA
- Yes
- HazardClass
- 6.1
- PackingGroup
- III
- HS Code
- 29393000
- Toxicity
- LD50 orally in mice, hamsters, rats, rabbits (mg/kg): 127, 230, 355, 246 (males); 137, 249, 247, 224 (females) (Palm)
Use
Caffeine may be hygroscopic. Aqueous solutions (1.12 mg/mL) are stable for three weeks at 41° F if protected from light. In normal room lighting and at room temperature, solutions are stable for 3 days. Solutions of Caffeine in water, DMSO, 95% ethanol or acetone should be stable for 24 hours under normal lab conditions. REACTIVITY: Caffeine may react with strong oxidizing agents. Caffeine is also incompatible with iodine, silver salts and tannins. Caffeine is a very weak base. Caffeine is decomposed by strong solutions of caustic alkalis.
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