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Indocyanine Green

Alias: Cardio-Green Fox IR-125 IR 125 IR125
Cat No.:V11684 Purity: =98.24%
Indocyanine Green (IC Green; Cardiogreen;Fox) is a non-toxic tricarbocyanine/fluorescent dye used diagnostically in liver function tests and to determine blood volume and cardiac output.
Indocyanine Green
Indocyanine Green Chemical Structure CAS No.: 3599-32-4
Product category: Fluorescent Dye
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
50mg
100mg
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1g
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Purity & Quality Control Documentation

Purity: =98.24%

Product Description

Indocyanine Green (IC Green; Cardiogreen; Fox) is a non-toxic tricarbocyanine/fluorescent dye used diagnostically in liver function tests and to determine blood volume and cardiac output, as well as for ophthalmic angiography. Indocyanine Green has an Emission (Em) of 813 nm, and an Excitation (Ex) of 785 nm.

Biological Activity I Assay Protocols (From Reference)
Targets
Fluorescent dye
ln Vitro
The expression of BAX was dramatically elevated in HGF cells by indocyanine green (Foxgreen)-photodynamic therapy (ICG-PDT) at a concentration of 1000 μg/mL. On the other hand, BCL-2 gene Impact expression was not significantly affected by laser irradiation or ICG.
Cell Assay
Cell Staining Example 1
Indocyanine green is a non-toxic/low toxic fluorescent dye. It can only be taken up by hepatocytes after intravenous injection, after which it is secreted by hepatocytes. When cultured with serum-free medium, hepatocytes take up Indocyanine green, and the cytoplasm appears green. After restoration of serum, Indocyanine green is secreted out of the cytoplasm.
Method: For Indocyanine green uptake assay.
1. Add Indocyanine green to serum-free hepatocyte medium with a final concentration of 1 mg/mL and cells are cultured with the medium for 1 hour at 37℃.
2. Remove serum-free medium, and wash cells with PBS for three times.
3. Cells are examined and imaged with a microscope (IX71FL, OLYMPUS).

Cell Staining Example 2
Indocyanine green is a non-toxic/low toxic fluorescent dye. It can be taken up by lymph and provides contrast for visualizing the lumen of lymphatic vessels using its single-photon fluorescence in both animal models and human subjects.
Method: For noninvasive 2PF imaging.
Animal Protocol
In Vivo Staining Example 1
Indocyanine green is a non/low-toxic fluorescent dye that can be used to detect the distribution of polysaccharide-nanoemulsion following oral administration.
Method: For polysaccharide-nanoemulsion distribution detecting.
1. Indocyanine green is dissolved in the polysaccharide aqueous solution and then added to the nanoemulsion to form an complex (The final concentration of Indocyanine green in both solutions is 0.05 mg/mL).
2. A total of 9 BALB/C nude mice are assigned to each of three experimental groups. The mice sre subjected to fasting 4 h following their respective treatment and then placed in a live imaging device (Lumina XR Series III; Perkin-Elmer, Inc) to observe fluorescence distribution in vivo.
References
[1]. Gharesi S, et al. Effect of photodynamic therapy based on indocyanine green on expression of apoptosis-related genes in human gingival fibroblast cells. Photodiagnosis Photodyn Ther. 2017 Sep:19:33-36.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C43H47N2NAO6S2
Molecular Weight
774.9629
Exact Mass
774.277323
Elemental Analysis
C, 66.64; H, 6.11; N, 3.61; Na, 2.97; O, 12.39; S, 8.27
CAS #
3599-32-4
Appearance
Light green to dark green solid powder
tPSA
137A^2
SMILES
O=S(CCCC[N+]1=C(/C=C/C=C/C=C/C=C2N(CCCCS(=O)([O-])=O)C3=C(C4=CC=CC=C4C=C3)C/2(C)C)C(C)(C)C5=C1C=CC6=CC=CC=C56)([O-])=O.[Na+]
InChi Key
MOFVSTNWEDAEEK-UHFFFAOYSA-M
InChi Code
InChI=1S/C43H48N2O6S2.Na/c1-42(2)38(44(28-14-16-30-52(46,47)48)36-26-24-32-18-10-12-20-34(32)40(36)42)22-8-6-5-7-9-23-39-43(3,4)41-35-21-13-11-19-33(35)25-27-37(41)45(39)29-15-17-31-53(49,50)51/h5-13,18-27H,14-17,28-31H2,1-4H3,(H-,46,47,48,49,50,51)/q+1/p-1
Chemical Name
sodium 4-(2-((1E,3E,5E,7E)-7-(1,1-dimethyl-3-(4-sulfonatobutyl)-1,3-dihydro-2H-benzo[e]indol-2-ylidene)hepta-1,3,5-trien-1-yl)-1,1-dimethyl-1H-benzo[e]indol-3-ium-3-yl)butane-1-sulfonate
Synonyms
Cardio-Green Fox IR-125 IR 125 IR125
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Note: Please store this product in a sealed and protected environment, avoid exposure to moisture and light.
Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO : ~83.33 mg/mL (~107.53 mM)
H2O : ~5 mg/mL (~6.45 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (3.23 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: 2.5 mg/mL (3.23 mM) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), suspension solution; with ultrasonication.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 1.2904 mL 6.4519 mL 12.9039 mL
5 mM 0.2581 mL 1.2904 mL 2.5808 mL
10 mM 0.1290 mL 0.6452 mL 1.2904 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

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An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
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Definitions of molecular mass, molecular weight, molar mass and molar weight:
  • Molecular mass (or molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
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Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

  • Enter the mass of the reagent and the desired reconstitution concentration as well as the correct units
  • Click the “Calculate” button
  • The answer appears in the Volume (to add to vial) box
In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

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