Coffein
Bezeichnung:Coffein
CAS-Nr58-08-2
Englisch Name:Caffeine
CBNumberCB0202769
SummenformelC8H10N4O2
Molgewicht194.19
MOL-Datei58-08-2.mol
Synonyma
Coffein
1,3,7-Trimethylxanthin
3,7-Dihydro-1,3,7-trimethyl-1H-purin-2,6-dion
Coffein physikalisch-chemischer Eigenschaften
Schmelzpunkt | 234-236.5 °C(lit.) |
Siedepunkt | 178°C |
Dichte | 1.23 |
FEMA | 2224 | CAFFEINE |
Brechungsindex | 1.6590 (estimate) |
Flammpunkt | 178°C |
storage temp. | 2-8°C |
Löslichkeit | 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) |
Aggregatzustand | Crystals or Crystalline Powder |
Farbe | Silky white or white |
Geruch (Odor) | at 100.00 %. odorless |
PH | pH (10g/l, 25℃) : 5.5~6.5 |
Geruchsart | odorless |
Wasserlöslichkeit | 20 g/L (20 ºC) |
Sublimation | 178 ºC |
Merck | 14,1636 |
BRN | 17705 |
Kennzeichnung gefährlicher | Xn,T,F |
R-Sätze: | 22-25-39/23/24/25-23/24/25-11 |
S-Sätze: | 16-36/37-45-7 |
RIDADR | UN 1544 6.1/PG 3 |
WGK Germany | 1 |
RTECS-Nr. | EV6475000 |
F | 10 |
TSCA | Yes |
HazardClass | 6.1 |
PackingGroup | III |
HS Code | 29393000 |
Giftige Stoffe Daten | 58-08-2(Hazardous Substances Data) |
Toxizität | LD50 orally in mice, hamsters, rats, rabbits (mg/kg): 127, 230, 355, 246 (males); 137, 249, 247, 224 (females) (Palm) |