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Wright′s eosine methylene blue

品牌
Sigma-Aldrich
货号
1.09278
包装型号
规格纯度
for microscopy
参考价格
1324.96 *本价格含增值税费
促销
数量
-+
产品介绍:

产品说明

一般描述

Wright′s eosin methylene blue - for microscopy staining dye, is a defined mixture of the dyes C.I. 52015 and C.I. 45380 for hematological staining procedures and is used in conjunction with eosin Y. The Wright′s eosin methylene blue solution can be used for analysis and diagnostics in the whole blood differentiation. The staining of the nuclei is due of the molecular interaction of the Eosin Y dye and a complex of Azur B with DNA. Both dyes assemble to an Eosin Y - Azur B-DNA complex and the intensity of the resulting stain depends on the content of Azur B and the ratio of Azur B : Eosin Y. Furthermore, the resulting stain can vary depending on the influence of fixation, staining times, pH-value of the solutions or buffer substances. For more details, please see instructions for use (IFU). This product is registered as IVD and CE marked. For more details, please see instructions for use (IFU). The IFU can be downloaded from this webpage.

分析说明

Identity (UV/VIS-Spectrum): passes test
pH-value (0,01 %; methanol 50 %): 6.0 - 7.0
Absorption maximum λ 1 (Methanol): 648 - 651 nm
Absorption maximum λ 2 (Methanol): 521 - 524 nm
Spec. Absorptivity A 1%/1cm
- λ1max; 0.0005 %; methanol; calculated on dried substance:
1200 - 1400
- λ2max; 0.0005 %; methanol; calculated on dried substance: 650 - 850
TLC-Test: passes test
Loss on drying (105 °C): ≤ 10 %
Suitability for microscopy: passes test

产品性质

质量水平400
形式solid
pH值(酸碱度)6.0-7.0
堆积密度520 kg/m3
εmax1200-1400 at 648-651 nm in methanol at 0.0005%
650-850 at 521-524 nm in methanol at 0.0005%
application(s)diagnostic assay manufacturing
hematology
histology
储存温度2-30℃

安全信息

象形图GHS07
警示用语:Warning
危险声明H317 - H319
预防措施声明P261 - P264 - P272 - P280 - P302 + P352 - P305 + P351 + P338
危险分类Eye Irrit. 2 - Skin Sens. 1
储存分类代码11 - Combustible Solids
WGKWGK 3

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