化合物简介
Nile red (also known as Nile blue oxazone) is a lipophilic stain. It is produced by boiling a solution of Nile blue with sulfuric acid. As can be seen from the structural formulae, this process replaces an iminium group with a carbonyl group. Nile red stains intracellular lipid droplets red. In most polar solvents Nile Red will not fluoresce, however when in a lipid-rich environment can be intensely fluorescent, with varying colours from deep red to strong yellow-gold emission. The dye is highly solvatochromic and its emission and excitation wavelength both shift depending on solvent polarity and in polar media will hardly fluoresce at all.
基本信息
中文名称
尼罗红
英文名称
nile red dye
中文别名
9-(二乙胺基)-5H-苯并[a]吩恶嗪-5-酮、尼罗丝
英文别名
DCC impregnated tablets、Nile red、9-(diethylamino)benzo[a]phenoxazin-5-one、Nile Blue A Oxazone
CAS号
7385-67-3
分子式
C20H18N2O2
分子量
318.369
精确质量
318.137
PSA
46.34
LOGP
4.2922
编号系统
UNII
P476F1L81G
物化性质
外观与性状
固体
密度
1.23g/cm3
沸点
484.7ºC at 760 mmHg
熔点
203-205°C(lit.)
闪点
246.9ºC
折射率
1.643
稳定性
Stable. Incompatible with strong oxidizing agents.
安全信息
安全说明
S24/25
WGK Germany
3
海关编码
2933990090