CAS号:58-08-2
品名:咖啡因Caffeine
中文别名:1,3,7-三甲基黄嘌呤;无水咖啡碱;茶素;咖啡碱;茶精;
英文别名:1H-Purine-2,6-dione,3,7-dihydro-1,3,7-trimethyl-;Stim;No-Doz;trimethylxanthine;CAFFEIN;Miudol;3,7-dihydro-1,3,7-trimethyl-1H-purine-2,6-dione;Theine;Kofein;tirend;COFFEIN;THEIN;1,3,7-trimethylxanthine;Nodaca;
分子式:C8H10N4O2
分子量:194.191
精确质量:194.08
Psa:61.82
RTECS号:EV6475000
MDL号:MFCD00005758
外观与性状:白色柔韧有弱光的针状结晶,无臭,味苦。露置干燥空气中可风化,80℃全部失水,178℃升华。Mp235-237.5C,相对密度(d184)1.23。本品溶于氯仿(1:7)、水(1:60)、乙醇(1:130),易溶于稀酸,微溶于乙醚。水溶液对石蕊呈中性,与有机酸或其碱金属盐如苯甲酸钠、水杨酸钠、枸橼酸钠或桂皮酸钠等形成复盐,可加大水中的溶解度。中等毒,LD50(大鼠、经口) 260mg/kg。
密度:1.23
沸点:178°C
熔点:234-236.5°C(lit.)
闪点:178°C
稳定性:Stable. Incompatible with strong acids, strong bases, strong oxidizing agents, iodine, silver salts, tannins. Weakly light sensitive in solution.
储存条件:2-8°C
安全说明:S16; S36/37; S45
危险类别码:R22; R25
WGK Germany:1
海关编码:2939300010
危险品运输编码:UN 1544 6.1/PG 3
危险类别:6.1
包装等级:III
危险品标志:Xn; T
简介:Caffeineisacentralnervoussystem(CNS)stimulantofthemethylxanthineclass.Itistheworld'smostwidelyconsumedpsychoactivedrug.Unlikemanyotherpsychoactivesubstances,itislegalandunregulatedinnearlyallpartsoftheworld.Thereareseveralknownmechanismsofactiontoexplaintheeffectsofcaffeine.Themostprominentisthatitreversiblyblockstheactionofadenosineonitsreceptorandconsequentlypreventstheonsetofdrowsinessinducedbyadenosine.Caffeinealsostimulatescertainportionsoftheautonomicnervoussystem.