caffeine

1-Methylxanthine 是咖啡因衍生物，是咖啡因和茶碱 (1,3-二甲基黄嘌呤，TP) 在人体尿代谢产物，能够提高肿瘤细胞的放射敏感性。

咖啡因 N-Acetyl-L-Tryptophan 是一种咖啡因盐，具有刺激神经系统和扩张血管的作用。

8-Chloro caffeine 结合腺苷受体 (adenosine receptors) 的 Ki 值为 30 µM。它能够增强 Cl-I 型中国仓鼠胚胎肺细胞中紫外线诱导的染色体畸变。作为甲基黄嘌呤生物碱咖啡因的衍生物，8-Chloro caffeine 显示出这些特性。

G-33378 is a metabolite of sulfinpyrazone that inhibits human platelet cyclo-oxygenase activity.

6-Thiocaffeine is a bioactive chemical.

Isocaffeine 是一种有用的有机化合物，可用于生命科学领域的相关研究。其产品编号为 T65260，CAS号为 519-32-4。

Salicylamide(2-Hydroxybenzamide) 是一种止痛剂和抗热解药剂，是一种微粒体 UDP-葡糖醛酸基转移酶抑制剂。

(R)-(+)-Citronellal （(+)-Citronellal）可从柑橘、薰衣草和桉树油中分离得到的单萜化合物，具有抗真菌活性,通过抑制苦味受体 TAS2R43 和 TAS2R46 来减轻咖啡因的苦味,常用于护肤品行业。

1,3,7-Trimethyluric acid 是咖啡因的代谢产物。其与咖啡因的代谢比可以反映 CYP3A 活性的变化情况。

Cofpropamine 作为一种源自咖啡因的衍生物，能抑制多聚腺苷酸化。在大鼠的佐剂性关节炎和小鼠的胶原性关节炎模型中，它能增强Cyclophosphamide的抑制效果。

DMPX (3,7-Dimethyl-1-propargylxanthine) 是一种能够渗透血脑屏障的咖啡因类似物。作为 A2选择性腺苷受体 (AR) 拮抗剂，DMPX 可以强效且有选择性地抑制 A2腺苷受体激动剂（如 NECA）引发的低温和行为抑制反应。DMPX 可用于帕金森病等疾病的研究。

Cafaminol (methylcoffanolamine) is a vasoconstrictor and anticatarrhal of the methylxanthine family related to caffeine which is used as a nasal decongestant.

Paraxanthine (1,7-dimethylxanthine) 是一种 caffeine 的代谢物，能够刺激Ryanodine 受体通道来抑制多巴胺能细胞的死亡。

1,3,7-Trimethyluric acid-d9 is intended for use as an internal standard for the quantification of 1,3,7-trimethyluric acid by GC- or LC-MS. 1,3,7-Trimethyluric acid is a derivative of uric acid and a metabolite of caffeine. It is formed from caffeine by the cytochrome P450 isoform CYP3A4. 1,3,7-Trimethyluric acid scavenges hydroxyl radicals in a cell-free assay and inhibits t-butyl hydroperoxide-induced lipid peroxidation by 56.5% in isolated human erythrocyte membranes.

Paraxanthine-d6 is intended for use as an internal standard for the quantification of paraxanthine by GC- or LC-MS. Paraxanthine is an active metabolite of caffeine. It is formed via N3-demethylation of caffeine by the cytochrome P450 (CYP) isoform CYP1A2. Paraxanthine is an adenosine A1 and A2 receptor antagonist. In vivo, paraxanthine increases striatal cGMP and extracellular striatal dopamine levels and locomotor activity, as well as inhibits motor depression induced by the adenosine A1 agonist CPA or the adenosine A2 receptor agonist CGS 21680 in rats not habituated to caffeine. It also promotes wakefulness and increases locomotor activity and core temperature in narcoleptic transgenic mice without increasing behavioral anxiety.

Theobromine-d6 is intended for use as an internal standard for the quantification of theobromine by GC- or LC-MS. Theobromine is a methylxanthine alkaloid and derivative of caffeine that has been found in cocoa beans and has diverse biological activities. It is an adenosine A1 receptor antagonist. Theobromine increases AMPK phosphorylation and inhibits adipocyte differentiation, ERK and JNK phosphorylation, and IL-6 and TNF-α production in 3T3-L1 preadipocytes cultured in differentiation medium. It inhibits decreases in renal cortex SIRT1 activity and increases in NADPH oxidase-dependent reactive oxygen species (ROS) production, as well as reduces kidney hypertrophy and albuminuria in a spontaneously hypertensive rat model of streptozotocin-induced diabetes when administered at a dose of 5 mg kg per day.3 Theobromine is toxic to dogs with an LD50 value of 250 to 500 mg kg.

Azumolene sodium anhydrous is a muscle relaxant that inhibits the release of calcium from skeletal muscle sarcoplasmic reticulum. Azumolene inhibits a component of store-operated calcium entry coupled to the skeletal muscle ryanodine receptor. Azumolene, an equipotent dantrolene analog, inhibits a component of SOCE coupled to activation of RyR1 by caffeine and ryanodine, whereas the SOCE component induced by thapsigargin is not affected.

ATX-II为特定Na+通道调节剂，源自海葵(Anemonia sulcata)毒液。该化合物会使细胞培养物对Na+Halothane、Caffeine及Ryanodine敏感，并可诱发肺静脉心律失常及心房颤动。

ATX-II TFA为源自海葵(Anemonia sulcata)毒素的特定Na+通道调节剂，能使细胞培养物对Na+、Halothane、Caffeine和Ryanodine敏感，并可诱发肺静脉心律失常和心房颤动。

Methylliberine 作为咖啡因的一种嘌呤生物碱代谢产物，展现了口服活性。

Tetramethyluric acid（1,3,7,9-Tetramethyluric acid; Theacrine），也称为四甲基尿酸或茶碱，是一种结构类似于咖啡因的嘌呤生物碱。Tetramethyluric acid 可以作为生命科学研究中的生物材料或有机化合物使用。