antioxidants

Costunolide (Costus lactone) 是一种天然的倍半萜内酯，具有抗氧化、抗炎、抗过敏、骨重塑、神经保护、促进毛发生长、抗癌和抗糖尿病的特性，可诱导乳腺癌细胞周期阻滞和凋亡。

Cycloolivil (Isoolivil) 是一种天然多酚化合物，在橄榄树中具有显着的自由基清除活性。 Cycloolivil 具有抗氧化活性，它可以预防与血小板过度聚集相关的血栓并发症，是开发抗聚集治疗策略的基础。

Tea polyphenol 也称为绿茶提取物，是茶中天然存在的酚类化合物，具有抗癌、抗氧化、抑制细胞增殖、诱导细胞凋亡、延缓细胞周期和调节致癌物代谢等生物活性。

3,4,5-Trimethoxybenzoic acid (Gallic acid trimethyl ether) 是一种苯甲酸衍生物，可用作医药和有机合成中的砌块。

DPPH (2,2-Diphenyl-1-picrylhydrazyl) 是一种稳定的氮中心的自由基，可用于测量抗氧化剂的自由基清除活性。DPPH 具有单一电子，故能接受一个电子或氢离子，在波长为 517 nm 下具有最大吸收。

Anserine (L-Anserine) 是 Carnosine 的甲基化形式，是口服具有活性的天然二肽，存在于脊椎动物的骨骼肌。它不会被血清肌肽酶裂解，能够作为生化缓冲液，螯合剂，抗糖化剂和抗氧化剂。它能够改善阿尔茨海默氏病模型小鼠的记忆功能。

Hydroxytyrosol (2-(3,4-Di-hydroxyphenyl)-ethanol) 是从橄榄树及其叶子中提取的一种酚类化合物，具有抗氧化、抗动脉粥样硬化、抗血栓、抗菌、抗炎和抗肿瘤的作用，可用于研究心血管药物。

Ethyl gallate (gallic acid ethyl ester) 是一种非类黄酮酚过氧化氢清除剂。

Dilauryl Thiodipropionate is an agent of antioxidants.

Myrtenal is a natural monoterpene. It is found to attenuate diethylnitrosamine-induced hepatocellular carcinoma in rats by stabilizing intrinsic antioxidants and modulating apoptotic and anti-apoptotic cascades. Myrtenal also inhibits acetylcholinesterase

Kuromanin chloride (Chrysontemin chloride) 是从桑叶中获得，能够提高血糖浓度、维持脂质代谢平衡，表现出降低肥胖的作用。

Secoisolariciresinol diglucoside (LGM2605) 在铁过载诱导的氧化还原炎症损伤的体外模型中具有细胞保护作用。 Secoisolariciresinol Diglucoside(25 mg/kg b.w.) 通过抑制 ROS 水平介导的酶和非酶抗氧化剂水平升高来防止肝脏受到过氧化损伤，从而发挥抗高血糖作用。

PBD-BODIPY is a probe for the spectrophotometric measurement of autoxidation reactions. Co-autoxidation of the PBD-BODIPY signal carrier and a hydrocarbon co-substrate can be quantified by monitoring loss of absorbance at 591 nm. PBD-BODIPY has been used to measure the activity of radical-trapping antioxidants in cell-free assays. It has also been used as a fluorescent probe for the detection of epoxidation activity.

AAPH is a water-soluble azo compound which is used extensively as a free radical generator, often in the study of lipid peroxidation and the characterization of antioxidants.[1],[2],[3],[4] Decomposition of AAPH produces molecular nitrogen and 2 carbon radicals. The carbon radicals may combine to produce stable products or react with molecular oxygen to give peroxyl radicals. The half-life of AAPH is about 175 hours (37°C at neutral pH), making the rate of free radical generation essentially constant during the first several hours in solution.[5] While AAPH may be used effectively for lipid peroxidation in aqueous dispersions of fatty acids, other radical generators may be better suited for peroxidation studies in lipid micelles or membranes.[6],[7]

DTUN is a lipophilic hyponitrite radical initiator.1It initiates co-autoxidation of STY-BODIPY-embedded egg phosphatidylcholine liposomes when used at a concentration of 0.2 mM. DTUN has been used in fluorescence-enabled inhibited autoxidation (FENIX) assays for the development of ferroptosis inhibitors and the study of antioxidants in lipid membranes.1,2 1.Shah, R., Farmer, L.A., Zilka, O., et al.Beyond DPPH: Use of fluorescence-enabled inhibited autoxidation to predict oxidative cell death rescueCell Chem. Biol.26(11)1594-1607(2019) 2.Soula, M., Weber, R.A., Zilka, O., et al.Metabolic determinants of cancer cell sensitivity to canonical ferroptosis inducersNat. Chem. Biol.16(12)1351-1360(2020)

Tiliroside (Tribuloside) 是糖苷类黄酮，是 α-淀粉酶的非竞争性抑制剂(Ki:84.2 μM)。它抑制胃肠道中碳水化合物的消化和葡萄糖的吸收，具有抗糖尿病作用。

Shinorine, a mycosporine-like amino acid (MAA), is a small molecule sunscreen produced in some bacteria. Shinorine ameliorates chromium induced toxicity in zebrafish hepatocytes through the facultative activation of Nrf2-Keap1-ARE pathway. Shinorine is also an analogue of porphyra-344. Both porphyra-334 and shinorine are antioxidants and direct antagonists of Keap1-Nrf2 binding. Shinorine may be a useful agent to prevent or retard the progression of multiple degenerative disorders of ageing. Shinorine is a demethyl-analog of Porphyra 334.

MAGL-IN-11（化合物 29），一种选择性且可逆的MAGL抑制剂，具备研究炎症、癌症和抗氧化潜力。

Homogentisic acid (2,5-dihydroxyphenylacetic acid) 是一种尿液和血清代谢物中的特定代谢物，可用于尿黑酸尿症的诊断。

1,2,4,6-Tetra-O-galloyl-β-D-glucose 是一种抗氧化剂，可以从蓝桉中提取。它具有显著的超氧化物歧化酶 (SOD) 样抗氧化活性 (EC50: 1.55 μM)。此外，1,2,4,6-Tetra-O-galloyl-β-D-glucose 能抑制酪氨酸酶 (IC50: 0.59 mM) 和透明质酸酶 (IC50: 0.68 mM)，并可用于食品抗氧化剂、化妆品中的抗黑色素生成以及抗过敏/抗炎研究。

Danshenxinkun B has antioxIdant activity, it may have the potential of being used as natural antioxidants in foods and cosmetics.

Kaempferol-3-O-α±-D-arabinoside displays cytotoxic and high antioxidant activity.Kaempferol-3-O-arabinoside and kaempferol-3-O-glucoside can function as antioxidants in biological systems, particularly skin exposed to UV radiation by scavenging ROS, and protect cellular membrane against ROS; they can be applicable to new cosmeceuticals for antioxidant, antiaging, and antibacterial activity.

Andrographiside shows protective effects on hepatotoxicity induced in mice by carbon tetrachloride or tert-butylhydroperoxide (tBHP) intoxication, the effects could be due to its glucoside groups which may act as strong antioxidants.

(±)-ε-Viniferin，ε-Viniferin的外消旋体，展现P450抑制性抗氧化、保肝及抗菌特性。该化合物对革兰氏阳性菌肺炎链球菌显示出抗菌和抗生物膜活性，最小抑制浓度（MIC）为20 μM。