1.04134

Eosin Y (yellowish) (C.I. 45380)

• 実験式（ヒル表記法）: C₂₀H₆Br₄Na₂O₅
• CAS番号: 17372-87-1
• 分子量: 691.85
• MDL番号: MFCD00005040
• UNSPSCコード: 41116130
• NACRES: NA.21

特性

• 形状: solid
• 品質水準: 200
• 有効性: >2000 mg/kg LD₅₀, oral (Rat)
• 組成: Dye, ≥85% spectrophotometric assay
• pH: 9.2 (20 °C, 10 g/L in H₂O)
• mp: 295-296 °C
• 溶解性: 300 g/L
• かさ密度: 710 kg/m³
• アプリケーション: diagnostic assay manufacturing; hematology; histology
• 保管温度: 2-30°C
• 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

詳細

詳細

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.

アプリケーション

for microscopy Certistain^®

アナリシスノート

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

法的情報

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

安全性情報

• ピクトグラム: GHS07
• シグナルワード: Warning
• 危険有害性情報: H317 - H319
• 注意書き: P261 - P264 - P272 - P280 - P302 + P352 - P305 + P351 + P338
• 危険有害性の分類: Eye Irrit. 2 - Skin Sens. 1
• 保管分類コード: 11 - Combustible Solids
• WGK: WGK 3
• 引火点(°F): 376.9 °F - Pensky-Martens closed cup
• 引火点(℃): 191.6 °C - Pensky-Martens closed cup