1.03887
Fluorescein sodium (C.I. 45350)
Fluorescence indicator Reag. Ph Eur
Synonym(s):
Fluorescein sodium (C.I. 45350)
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About This Item
Product Name
Fluorescein sodium (C.I. 45350), indicator Reag. Ph Eur
SMILES string
[Na+].[Na+].[O-]c1cc2c(cc1)C(=C4C(=CC(=O)C=C4)O2)c3c(cccc3)C(=O)[O-]
InChI
1S/C20H12O5.2Na/c21-11-5-7-15-17(9-11)25-18-10-12(22)6-8-16(18)19(15)13-3-1-2-4-14(13)20(23)24;;/h1-10,21H,(H,23,24);;/q;2*+1/p-2
InChI key
NJDNXYGOVLYJHP-UHFFFAOYSA-L
agency
reag. Ph. Eur.
form
powder
potency
6720 mg/kg LD50, oral (Rat)
loss
≤10% loss on drying, 110°C
color
red-brown
pH
8.3 (20 °C, 10 g/L in H2O)
mp
>300 °C
solubility
500 g/L
bulk density
600 kg/m3
λmax
490-492 nm (buffer pH 8.0)
storage temp.
2-30°C
Quality Level
Related Categories
Analysis Note
Identity (UV/VIS-Spectrum): passes test
Identity (IR-spectrum): passes test
Absorption maximum λmax. (buffer pH 8.0): 490 - 492 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.005 g/l; buffer pH 8.0; calc. on dried substance): ≥ 1850
Loss on drying (110 °C): ≤ 10 %
Suitability as indicator (Adsorption indicator for argentometry): passes test
Storage Class
11 - Combustible Solids
wgk
WGK 1
flash_point_f
423.7 °F - Pensky-Martens closed cup
flash_point_c
217.6 °C - Pensky-Martens closed cup
Certificates of Analysis (COA)
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