1.15935

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

for microscopy Certistain^®

• 동의어(들): Eosin Y (yellowish) (C.I. 45380)
• 실험식(Hill 표기법): C₂₀H₆Br₄Na₂O₅
• CAS Number: 17372-87-1
• Molecular Weight: 691.85
• MDL number: MFCD00005040
• UNSPSC 코드: 41116130
• EC 인덱스 번호: 241-409-6

속성

• Quality Level: 400
• 형태: solid
• 효능: >2000 mg/kg LD₅₀, oral (Rat)
• 구성: Dye, ≥85% spectrophotometric assay
• pH: 9.2 (20 °C, 10 g/L in H₂O)
• mp: 295-296 °C
• solubility: 300 g/L
• 벌크 밀도: 710 kg/m³
• εmax: 1200-1400 at 515-518 nm in water at 0.005 g/L
• 응용 분야: diagnostic assay manufacturing; hematology; histology
• 저장 온도: 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

설명

일반 설명

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 (CE marked and IVD product) and a high staining quality, with reliable staining results is guaranteed. For more details, please see instructions for use (IFU). The IFU can be downloaded from this webpage.

분석 메모

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

법적 정보

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

안전성 정보

• 픽토그램: GHS07
• 신호어: Warning
• 유해 및 위험 성명서: H317 - H319
• 예방조치 성명서: P261 - P264 - P272 - P280 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Skin Sens. 1
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point (°C): 191.6 °C - Pensky-Martens closed cup