Fluorescein CAS NO.2321-07-5

Fluorescein Basic information

Product Name:    Fluorescein
Synonyms:    FLUORESCEIN, FREE ACIDFLUORESCEIN, FREE ACIDFLUORESCEIN, FREE ACID;Diresorcinolphthalein;Tetraoxyphthalophenone anhydride;SOLVENT YELLOW 94;S NO 880;RESORCINOL PHTHALEIN;FLUORESCEIN, ALCOHOL SOLUBLE;FLUORESCEIN
CAS:    2321-07-5
MF:    C20H12O5
MW:    332.31
EINECS:    219-031-8
Product Categories:   
Mol File:    2321-07-5.mol

Fluorescein Chemical Properties
Melting point     320 °C(lit.)
Boiling point     429.44°C (rough estimate)
density     1.2739 (rough estimate)
refractive index     1.5000 (estimate)
storage temp.     −20°C
solubility     Solubility Insoluble in water, ether, benzene, chloroform; soluble in ethanol, methanol, acetone, Iethyl acetate, N,N-dimethylformamide
Colour Index     45350
form     Powder
pka    2.2, 4.4, 6.7(at 25℃)
color     Red to orange
PH Range    Pink uorescence (4.0) to green uorescence (6.0)
Water Solubility     insoluble
λmax    493.5nm, 496nm, 460nm, 515nm
Merck     14,4159
BRN     94324
Stability:    Stable. Combustible. Incompatible with strong oxidizing agents.
Biological Applications    Detecting chromosomal aberration; diagnosing corneal diseases; marking/detecting insects; as antitumor agent; as antihistaminic agent; use in agriculture and plant cultivation; use in cosmetics; use in ophthalmology; as a substrate for measuring α-amylases activity, elastases activity, esterases activity, β-glucuronidases activity, horseradish peroxidases activity, kinases activity, monoamine oxidases (MAOs) activity, phosphatases activity, phospholipases activity, proteases/proteinases activity, telomerases activity activity
Major Application    Organic light-emitting diode, nanoparticles, liquid crystal display, oil products, lip make-up, nucleic acid synthesis, amplification, sequencing and cloning, diagnosis of diabetic retinopathy, detecting yeast, multidrug resistance, proteins, antiHCV antibodies, target genes, enzymatic activity, nerve agent, nucleic acid sequences, imaging lung cancer, prostate cancer
CAS DataBase Reference    2321-07-5(CAS DataBase Reference)
EPA Substance Registry System    Fluorescein (2321-07-5)

Safety Information
Hazard Codes     Xi
Risk Statements     43-36-36/37/38
Safety Statements     22-24/25-37/39-26-36/37/39-27
WGK Germany     3
RTECS     LM5075000
F     10-21
TSCA     Yes
HS Code     32042000
Hazardous Substances Data    2321-07-5(Hazardous Substances Data)