F2456

Fluorescein (free acid)

Dye content 95%, Powder

• 실험식(Hill 표기법): C₂₀H₁₂O₅
• CAS Number: 2321-07-5
• Molecular Weight: 332.31
• 색상 지수 번호: 45350:1
• Beilstein: 94324
• EC Number: 219-031-8
• MDL number: MFCD00005050
• UNSPSC 코드: 12171500
• PubChem Substance ID: 24894822
• NACRES: NA.47

속성

• Product Name: Fluorescein (free acid), Dye content 95 %
• 양식: powder
• Quality Level: 200
• 구성: Dye content, 95%
• 기술: titration: suitable
• 색상: orange to red-brown
• mp: 320 °C (lit.)
• λmax: 496 nm
• ε (흡광계수): ≥12000 at 282-286 nm; ≥39000 at 236-240 nm; ≥70000 at 488-492 nm
• 응용 분야: diagnostic assay manufacturing; hematology; histology
• 저장 온도: room temp
• SMILES string: Oc1ccc2c(Oc3cc(O)ccc3C24OC(=O)c5ccccc45)c1
• 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

설명

일반 설명

Fluorescein (free acid, CI 45350) is a xanthene dye. Fluorescein (free acid) molecule can be divided into two parts. One part contains xanthene moiety which acts as fluorophore and the other part of the molecule bears benzene moiety which is the fluorescence-controlling moiety.

애플리케이션

Fluorescein (free acid) has been used as a staining agent in retinal imaging.

Fluorescein (free acid) is widely used as a fluorescent stain and trace for many living cells and tissue applications. It is also suitable as a marker for the study of motility of bile canaliculi. Some of the clinical applications are evaluating the ocular surface and delineation of brain regions lacking a blood-brain barrier to permit accurate surgical resection of malignant glioma. Fluorescein angiography helps investigate changes in retinal blood supply. Fluorescein also plays a role as a physiological tracer to characterize the salmon′s intestinal permeability (Schep et al., 1998), and for the fluorophotometric measurement of aqueous humor flow. It is widely employed as a quantum yield standard.

안전성 정보

• 픽토그램: GHS07
• 신호어: Warning
• 유해 및 위험 성명서: H319
• 예방조치 성명서: P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable
• 개인 보호 장비: Eyeshields, Gloves, type N95 (US)