F2456
荧光素（游离酸）
Dye content 95%, Powder
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关于此项目
经验公式（希尔记法）:
C20H12O5
化学文摘社编号:
分子量:
332.31
UNSPSC Code:
12171500
Colour Index Number:
45350:1
NACRES:
NA.47
PubChem Substance ID:
EC Number:
219-031-8
MDL number:
Beilstein/REAXYS Number:
94324
产品名称
荧光素（游离酸）, Dye content 95 %
InChI
1S/C20H12O5/c21-11-5-7-15-17(9-11)24-18-10-12(22)6-8-16(18)20(15)14-4-2-1-3-13(14)19(23)25-20/h1-10,21-22H
InChI key
GNBHRKFJIUUOQI-UHFFFAOYSA-N
SMILES string
Oc1ccc2c(Oc3cc(O)ccc3C24OC(=O)c5ccccc45)c1
form
powder
composition
Dye content, 95%
technique(s)
titration: suitable
color
orange to red-brown
mp
320 °C (lit.)
λmax
496 nm
ε (extinction coefficient)
≥12000 at 282-286 nm, ≥39000 at 236-240 nm, ≥70000 at 488-492 nm
application(s)
diagnostic assay manufacturing
hematology
histology
storage temp.
room temp
Quality Level
General description
荧光素（游离酸 CI 45350）是一种呫吨染料。荧光素（游离酸）分子可分为两部分。一部分含有呫吨基团，其可充当荧光团，而另一部分带有苯基团，其是荧光控制基团。
Application
荧光素（游离酸）已用作视网膜成像中的染色剂。
荧光素（游离酸）被广泛用作许多活细胞和组织的荧光染色和跟踪。它也适合作为研究胆管运动的标志物。临床应用包括评估眼表和描绘缺乏血脑屏障的脑区域，以实现准确的恶性胶质瘤手术切除。荧光素血管造影有助于研究视网膜血液供应的变化。荧光素还可以作为一种生理示踪剂来表征鲑鱼的肠通透性（Schep 等，1998），并用于房水流量的荧光光度法测量。它被广泛用作量子产量标准。
signalword
Warning
hcodes
pcodes
Hazard Classifications
Eye Irrit. 2
存储类别
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
Balamuralikrishna Jayaprakash et al.
Microbiome, 5(1), 138-138 (2017-10-17)
The limited understanding of microbial characteristics in moisture-damaged buildings impedes efforts to clarify which adverse health effects in the occupants are associated with the damage and to develop effective building intervention strategies. The objectives of this current study were (i)
Keisuke Kawamoto et al.
Haematologica, 103(6), 1018-1028 (2017-12-16)
The characteristics of adult patients with chronic active Epstein-Barr virus infection are poorly recognized, hindering early diagnosis and an improved prognosis. We studied 54 patients with adult-onset chronic active Epstein-Barr virus infection diagnosed between 2005 and 2015. Adult onset was
Jodie L White et al.
Open forum infectious diseases, 6(7), ofz272-ofz272 (2019-07-10)
There are limited nationally representative data on correlates of cytomegalovirus (CMV) shedding among children and adolescents. In addition, the genotype distribution of CMV infections has not been well characterized among general populations in the United States. This study characterized urinary
Ischemia-induced spreading depolarization in the retina.
Srienc AI
Journal of Cerebral Blood Flow and Metabolism, 36, 1579-1579 (2016)
J J Riesz et al.
Physical review. E, Statistical, nonlinear, and soft matter physics, 76(2 Pt 1), 021915-021915 (2007-10-13)
We report the transition dipole strength of eumelanin (the principal human photoprotective pigment) in the ultraviolet and visible. We have used both theoretical (density functional) and experimental methods to show that eumelanin is not an unusually strong absorber amongst organic
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