1.04134

曙红Y（淡黄色）（C.I.45380）

• 经验公式（希尔记法）: C₂₀H₆Br₄Na₂O₅
• CAS号: 17372-87-1
• 分子量: 691.85
• MDL编号: MFCD00005040
• UNSPSC代码: 41116130
• NACRES: NA.21

属性

• 表单: solid
• 质量水平: 200
• 效能: >2000 mg/kg LD₅₀, oral (Rat)
• 组成: Dye, ≥85% spectrophotometric assay
• pH值（酸碱度）: 9.2 (20 °C, 10 g/L in H₂O)
• mp: 295-296 °C
• 溶解性: 300 g/L
• 堆积密度: 710 kg/m³
• 应用: diagnostic assay manufacturing; hematology; histology
• 储存温度: 2-30°C
• SMILES字符串: [Na+].[Na+].Brc1c2[o][c]3[c](c(c2cc([c]1=O)Br)c4c(cccc4)C(=O)[O-])=CC(=C(C=3Br)[O-])Br
• InChI: 1S/C20H8Br4O5.2Na/c21-11-5-9-13(7-3-1-2-4-8(7)20(27)28)10-6-12(22)17(26)15(24)19(10)29-18(9)14(23)16(11)25;;/h1-6,25H,(H,27,28);;/q;2*+1/p-2
• InChI key: SEACYXSIPDVVMV-UHFFFAOYSA-L

说明

一般描述

Eosin Y (C.I. 45380) is a CERTISTAIN^® dry dye for microscopy that is often used as a counterstain, vizualising proteins, connective tissues, fibers and keratin in sample material of human origin. Depending on user requirements and personal preferences, it can be used for the preparation of the commonly used aqueous or alcoholic Eosin Y staining solutions. This staining solution will mostly be used for routine staining in the hematoxylin-eosin staining process (H&E). The H&E staining process is the most frequently used staining method for histological material. Due to the hematoxylin solution, the nuclei will appear blue to dark violet in color and the Eosin Y solution will stain the cytoplasma and intercellular substances red-orange. As the Eosin Y dye belongs to the portfolio of Certistain^® dyes, it is chemically analyzed according to strict specifications before release and a high staining quality, with reliable staining results is guaranteed.

应用

for microscopy Certistain^®

分析说明

Dye content (gravimetrically): ≥ 85 %
Identity (UV/VIS-Spectrum): passes test
Absorption maximum λ max (water): 515 - 518 nm
Spec. Absorptivity A 1%/1cm (λ_max; 0.005 g/l; water): 1200 - 1400
TLC-Test: passes test
Loss on drying (110 °C): ≤ 8 %
Suitability for microscopy: passes test

法律信息

CERTISTAIN is a registered trademark of Merck KGaA, Darmstadt, Germany

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
• WGK: WGK 3
• 闪点(°F): 376.9 °F - Pensky-Martens closed cup
• 闪点(°C): 191.6 °C - Pensky-Martens closed cup