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FLUORESCEIN SODIUM/SODIUM FLUORESCEIN

FLUORESCEIN SODIUM/SODIUM FLUORESCEIN

 FLUORESCEIN SODIUM  CAS:518-47-8
Synonyms: FLUORESCEIN SOD DRV SOD SALT;uranineo;uranineuspxii;uranineyellow;3',6'-Dihydroxy-spiro[3H-isobenzofuran-1,9'-xanthen]-3-one disodium salt;3',6'-dihydroxyspiro[isobenzofuran-1(3H),9'-(9H)xanthene]-3-one, disodium salt;3,6-Dihydroxyxanthene-9-spiro-1'-3'H-isobenzofuran-3'-one;3,6-Dihydroxyxanthene-9-spiro-1'-3'H-isobenzofuran-3'-one dipotassium salt
MF: C20H10Na2O5
MW: 376.27
EINECS: 208-253-0
Melting point  320 °C
storage temp.  Store at +5°C to +30°C.
solubility  H2O: soluble1mg/mL
form  Powder
pka 2.2, 4.4, 6.7(at 25℃)
Colour Index  45350
color  Rust-orange
PH Range Pink uorescence (4.0) to green uorescence (6.0)
PH 8.3 (10g/l, H2O, 20℃)
Water Solubility  500 g/L (20 ºC)
λmax 491nm, 493.5nm, 490nm
Merck  14,4159
BRN  3833041
Stability: Stable.

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