Tom ntej: Fluorescein Sodium CAS 518-47-8

Fluorescein Sodium CAS 518-47-8 Featured duab

CAS:518-47-8 : kuv

Molecular Formula:C20H13NaO5

Molecular Luj:356.31 Nws

EINECS:208-253-0 : kuv

Synonyms:INTERNAL REFERENCE DYE, FLUORESCEIN BASE; FLUORESCEIN SODIUM 8-12% AQUEOUS * SOLUTION; FLUORESCEIN DISODITM SALT RAU FLUORESCENCE CI NO. 45350; FLUORESCEIN DISODIUM SALT ULTRA PURE 98+% (CI 45350); FLUORESCEIN SODIUM TECHNICAL DYE (CI 45350)

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Fluorescein Sodium CAS 518-47-8 yog dab tsi?

Fluorescein Sodium tsis muaj ntxhiab tsw thiab hygroscopic. Dissolved nyob rau hauv dej, cov tshuaj tshwm daj liab nrog muaj zog daj ntsuab fluorescence, disappears tom qab acidification, rov tshwm sim tom qab neutralization los yog alkalization, me ntsis soluble nyob rau hauv ethanol, yuav luag insoluble nyob rau hauv chloroform thiab ether. Cov kua dej yog isotonic nrog plasma.

Specification

Yam khoom	Specification
Qhov ntom	0.579 [ntawm 20 ℃]
Melting point	320 ° C
Vapor siab	2, 133 hPa
Cia tej yam kev mob	Khaws ntawm +5 ° C rau + 30 ° C.
pKa	2.2, 4.4, 6.7 (ntawm 25 ℃)
PH	8.3 (10g / l, H2O, 20 ℃)

Daim ntawv thov

Fluorescein Sodium yog siv los ua cov fluorescent tracer los kawm txog cov permeability ntawm cov ntshav-hlwb barrier (BBB) thiab ntshav-hlwb barrier (BSCB) hauv cov qauv nas. Siv cov dyeing no raws li kev sojntsuam substrate, lub siab cell tshuaj thauj mus los ntawm cov organic anion thauj peptide (OATP) tau kawm.