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Merck
CN

32-0140

Sigma-Aldrich

Fluorescein sodium salt

SAJ first grade

Synonym(s):

Acid Yellow 73, D&C;Yellow No. 8, NaFl, NaFluo, Sodium fluorescein, Uranine

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About This Item

Empirical Formula (Hill Notation):
C20H10Na2O5
CAS Number:
518-47-8
Molecular Weight:
376.27
Colour Index Number:
45350
Beilstein:
3833041
MDL number:
MFCD00167039
UNSPSC Code:
12352200
PubChem Substance ID:
329753959

Key Documents

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grade

SAJ first grade

form

solid

availability

available only in Japan

pH

~8.3 (20 °C, 10 g/L)

fluorescence

λex 460 nm; λem 515 nm(lit.)

storage temp.

15-25°C

SMILES string

[Na+].[Na+].[O-]c1ccc2c(Oc3cc([O-])ccc3C24OC(=O)c5ccccc45)c1

InChI

1S/C20H12O5.2Na/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;;/q;2*+1/p-2

InChI key

RGPLGPBQJOQFJS-UHFFFAOYSA-L

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Storage Class Code

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

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
U1876
U2791
U4727
U9642
U1628

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Beau J Fenner et al.
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Up-to-date expert opinion referencing the best evidence available on intraoperative cerebrospinal fluid leak during endoscopic sinus surgery.
H Al-Reefy et al.
Clinical otolaryngology : official journal of ENT-UK ; official journal of Netherlands Society for Oto-Rhino-Laryngology & Cervico-Facial Surgery, 38(1), 48-53 (2013-02-20)
Wee Yang Ng et al.
Biomicrofluidics, 3(2), 22405-22405 (2009-08-21)
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Sara Seabrooke et al.
American journal of physiology. Cell physiology, 305(5), C558-C567 (2013-06-28)
The blood-brain barrier (BBB) physiologically isolates the brain from the blood and, thus, plays a vital role in brain homeostasis. Ion transporters play a critical role in this process by effectively regulating access of chemicals to the brain. Organic anion-transporting
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