公告提醒：爱必信所有产品和服务仅用于科学研究，不用于临床应用及其他用途提供产品和服务（也不为任何个人提供产品和服务）! 试剂描述： 产品名称：trans-Urocanic Acid 产品别名：反式尿刊酸 CAS号：3465-72-3 英文别名：(2E)-3-(1H-Imidazol-4-yl)acrylic acid 分子量：138.1 分子式：C6H6N2O2 纯度：≥98% 外观：见爱必信官网 保存方法：Store at -20℃ 描述：trans-Urocanic acid is a major epidermal chromophore for the immunosuppressive effects of UV radiation that is produced in mammalian stratum corneum by the action of histidine ammonialyase on L-histidine.1 It contributes to the acidification of the surface of the stratum corneum, and its function has been proposed as that of an endogenous sunscreen, endowing a low-level of protection (SPF ~ 1.5) against UV-induced DNA damage and excessive keratinocyte apoptosis.1 Upon UVB exposure, trans-urocanic acid is converted to the cis isomer, which is known to activate regulatory T cells.2 应用：见爱必信官网 产品信息订购： | 产品货号 | 产品名称 | 规格 | 价格 | 大包装及货期 | | abs47045743 | trans-Urocanic Acid | 1g | 770 | 立即咨询 | 产品更多信息请进入爱必信网站咨询 | 
