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201626

Fluoresceinamine, isomer I

Synonym(s):

5-Aminofluorescein

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About This Item

Empirical Formula (Hill Notation):
C20H13NO5
CAS Number:
Molecular Weight:
347.32
UNSPSC Code:
12171500
NACRES:
NA.47
PubChem Substance ID:
EC Number:
222-043-6
Beilstein/REAXYS Number:
48395
MDL number:
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form

powder

Quality Segment

mp

223 °C (dec.) (lit.)

solubility

methanol: 5 mg/mL

λmax

490-501 nm

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

Nc1ccc2c(c1)C(=O)OC23c4ccc(O)cc4Oc5cc(O)ccc35

InChI

1S/C20H13NO5/c21-10-1-4-14-13(7-10)19(24)26-20(14)15-5-2-11(22)8-17(15)25-18-9-12(23)3-6-16(18)20/h1-9,22-23H,21H2

InChI key

GZAJOEGTZDUSKS-UHFFFAOYSA-N

General description

Fluoresceinamine, isomer I belongs to the class of derivatized fluoresceins.

Application

Fluoresceinamine, isomer I is suitable for use in a specific and sensitive spectrophotometric method for determining nitrite. It has been used to fluorescently tag nanoparticles through a competitive carboxyl-amine coupling reaction to visualize nanoparticle internalization.

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This Item
I9271F7250F4274
solubility

methanol: 5 mg/mL

solubility

DMSO: 5 mg/mL

solubility

acetone: 1 mg/mL

solubility

acetone: soluble 10 mg/mL

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

diagnostic assay manufacturing
hematology
histology

form

powder

form

powder

form

powder

form

powder

storage temp.

room temp

storage temp.

−20°C

storage temp.

2-8°C

storage temp.

2-8°C

mp

223 °C (dec.) (lit.)

mp

-

mp

>360 °C (lit.)

mp

>360 °C (lit.)

λmax

490-501 nm

λmax

-

λmax

-

λmax

-


pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves



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Questions

1–3 of 3 Questions  
  1. Can this be used to stain cells and visualize them under the confocal microscope?

    1 answer
    1. During Quality Control, no testing to performed involving confocal microscopy. Conjugate 5-aminofluorescein (AFL)-human serum albumin has been used to stain brain cells, although it does not appear confocal microscopy was performed. Below is the reference: https://www.sigmaaldrich.com/tech-docs/paper/250406

      Helpful?

  2. Dear manager, I want to ask you 2 questions about this product. 1. Is it a flurescence dye? Can you show me its adsorption or emission spectrum? 2. Is the amine group reactive?

    1 answer
    1. Yes, Fluoresceinamine, isomer I is classified as belonging to a group of derivatized fluorosceins. The product is fluorescent. Although no quality control testing is performed to check for excitation and emission, the dye is expected to excite around 490 nm and emit around 520 nm.

      As the H2N- group is not acetylated or protonated, the amine group can be considered reactive. There is literature available stating Fluoresceinamine, isomer I can be covalently bound to human serum albumin.

      Helpful?

  3. What is the solubility of Fluoresceinamine, isomer I, CAS 3326-34-9?

    1 answer
    1. Soluble in methanol at a concentration of 5 mg/mL. Soluble in DMSO at a concentration of ≥ 32 mg/mL.

      Helpful?

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