ASMI_CAS号1850419-05-4_M8619说明书_AbMole中国

化学数据

分子量分子式CAS号储存条件

393.22C17H16NIO21850419-05-43年 -20°C 粉末状

溶解性（25°C）

DMSO Water Ethanol

生物活性

ASMI is a cell-permeable, non-toxic, biocompatible, photostable, positively charged, mitochondria targeting styryl-methylpyridinium based compound that acts as a rapid, cysteine selective, sensitive, and ratiometric (F 518 /F 452 nm) fluorescent turn-on probe (0.5 - 40 μM of [Cys]). Under physiological conditions, cysteine thiol reacts with the ASMI acrylate moiety in a time-dependent manner, and induces a facile intramolecular cyclization to release fluorogenic oxystyryl

methylpyridinium. ASMI displays high selectivity over other biothiols (Kobs = 0.75, 0.038, 0.011 & 0.012 min -1 for Cys, Hcy, GSH & Na 2 S, respectively) and with no interference from other biologically relevant amino acids, essential metal ions, and anions, including Na2S. Shown to monitor mitochondrial Cys levels in HeLa cells and in deep tissues (150 μm of penetration depth) by two-photon excited fluorescence microscopy.

不同实验动物依据体表面积的等效剂量转换表（数据来源于FDA指南）

小鼠

重量 (kg)体表面积 (m2)Km系数

0.020.0073

动物 B的Km系数动物 A的Km系数大鼠0.150.0256

兔1.80.1512

豚鼠0.40.058

仓鼠0.080.025

狗100.520

动物 A (mg/kg) = 动物 B (mg/kg) ×

例如，依据体表面积折算法，将白藜芦醇用于小鼠的剂量22.4 mg/kg 换算成大鼠的剂量，需要将22.4 mg/kg 乘以小鼠的Km系数（3），再除以大鼠的Km系数（6），得到白藜芦醇用于大鼠的等效剂量为11.2 mg/kg。