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INT  (Synonyms: Iodonitrotetrazolium chloride; p-Iodonitrotetrazolium Violet)

Cat. No.: HY-15920 Purity: 99.57%
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INT (Iodonitrotetrazolium chloride) is a biochemical reagent mainly used in the iodonitrotetrazolium chloride (INT) colorimetric method to assess the metabolic activity of cells and the activity of enzymes.

For research use only. We do not sell to patients.

INT Chemical Structure

INT Chemical Structure

CAS No. : 146-68-9

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Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
 USD 55 In-stock
Solution
10 mM * 1 mL in DMSO USD 55 In-stock
Solid
500 mg USD 50 In-stock
1 g USD 79 In-stock
5 g USD 264 In-stock
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Based on 2 publication(s) in Google Scholar

INT Related Antibodies

Top Publications Citing Use of Products

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  • Purity & Documentation

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Description

INT (Iodonitrotetrazolium chloride) is a biochemical reagent mainly used in the iodonitrotetrazolium chloride (INT) colorimetric method to assess the metabolic activity of cells and the activity of enzymes[1].

Molecular Weight

505.70

Formula

C19H13ClIN5O2
CAS No.
Appearance

Solid

Color

Yellow to brown

SMILES

IC1=CC=C(N2N=C(C3=CC=CC=C3)N=[N+]2C4=CC=C([N+]([O-])=O)C=C4)C=C1.[Cl-]
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

4°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

Solvent & Solubility
In Vitro: 

DMSO : 83.33 mg/mL (164.78 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

H2O : < 0.1 mg/mL (insoluble)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 1.9775 mL 9.8873 mL 19.7746 mL
5 mM 0.3955 mL 1.9775 mL 3.9549 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
=
Concentration
×
Volume
×
Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

  • Protocol 1

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 2.08 mg/mL (4.11 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

    Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.08 mg/mL (4.11 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

    Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
DMSO +
% 
+
%
Tween-80 +
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Calculation results:
Working solution concentration: mg/mL
Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation

Purity: 99.57%

COA (255 KB) HNMR (259 KB) LCMS (91 KB)

Handling Instructions (2659 KB)
References

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 1.9775 mL 9.8873 mL 19.7746 mL 49.4364 mL
5 mM 0.3955 mL 1.9775 mL 3.9549 mL 9.8873 mL
10 mM 0.1977 mL 0.9887 mL 1.9775 mL 4.9436 mL
15 mM 0.1318 mL 0.6592 mL 1.3183 mL 3.2958 mL
20 mM 0.0989 mL 0.4944 mL 0.9887 mL 2.4718 mL
25 mM 0.0791 mL 0.3955 mL 0.7910 mL 1.9775 mL
30 mM 0.0659 mL 0.3296 mL 0.6592 mL 1.6479 mL
40 mM 0.0494 mL 0.2472 mL 0.4944 mL 1.2359 mL
50 mM 0.0395 mL 0.1977 mL 0.3955 mL 0.9887 mL
60 mM 0.0330 mL 0.1648 mL 0.3296 mL 0.8239 mL
80 mM 0.0247 mL 0.1236 mL 0.2472 mL 0.6180 mL
100 mM 0.0198 mL 0.0989 mL 0.1977 mL 0.4944 mL
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INT Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

INT146-68-9Iodonitrotetrazolium p-Iodonitrotetrazolium VioletBiochemical Assay ReagentsInhibitorinhibitorinhibit

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