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Tartrazine  (Synonyms: Acid Yellow 23; FD&C Yellow No. 5)

Cat. No.: HY-D0257 Purity: ≥98.0%
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Tartrazine is a synthetic lemon yellow azo dye primarily used as a food coloring.

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

Tartrazine Chemical Structure

Tartrazine Chemical Structure

CAS No. : 1934-21-0

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Solid + Solvent
10 mM * 1 mL in DMSO
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1 g USD 60 In-stock
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Based on 1 publication(s) in Google Scholar

Tartrazine Related Antibodies

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Description

Tartrazine is a synthetic lemon yellow azo dye primarily used as a food coloring. Tartrazine is water-soluble and has a maximum absorbance in an aqueous solution at 425 nm.

Molecular Weight

534.36

Formula

C16H9N4Na3O9S2
CAS No.
Appearance

Solid

Color

Pink to red

SMILES

O=C(C(C1N=NC2=CC=C(S(=O)(O[Na])=O)C=C2)=NN(C3=CC=C(S(=O)(O[Na])=O)C=C3)C1=O)O[Na]
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

4°C, sealed storage, away from moisture and light

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

Solvent & Solubility
In Vitro: 

DMSO : 50 mg/mL (93.57 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

H2O : 50 mg/mL (93.57 mM; Need ultrasonic)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 1.8714 mL 9.3570 mL 18.7140 mL
5 mM 0.3743 mL 1.8714 mL 3.7428 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 and light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

  • 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    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.5 mg/mL (4.68 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 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.

For the following dissolution methods, please prepare the working solution directly. It is recommended to prepare fresh solutions and use them promptly within a short period of time.
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:  PBS

    Solubility: 16.67 mg/mL (31.20 mM); Clear solution; Need ultrasonic

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.
Calculation results:
Working solution concentration: mg/mL
This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.
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).
Purity & Documentation

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 and light). 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 / H2O 1 mM 1.8714 mL 9.3570 mL 18.7140 mL 46.7849 mL
5 mM 0.3743 mL 1.8714 mL 3.7428 mL 9.3570 mL
10 mM 0.1871 mL 0.9357 mL 1.8714 mL 4.6785 mL
15 mM 0.1248 mL 0.6238 mL 1.2476 mL 3.1190 mL
20 mM 0.0936 mL 0.4678 mL 0.9357 mL 2.3392 mL
25 mM 0.0749 mL 0.3743 mL 0.7486 mL 1.8714 mL
30 mM 0.0624 mL 0.3119 mL 0.6238 mL 1.5595 mL
40 mM 0.0468 mL 0.2339 mL 0.4678 mL 1.1696 mL
50 mM 0.0374 mL 0.1871 mL 0.3743 mL 0.9357 mL
60 mM 0.0312 mL 0.1559 mL 0.3119 mL 0.7797 mL
80 mM 0.0234 mL 0.1170 mL 0.2339 mL 0.5848 mL

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

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Tartrazine 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:

Tartrazine1934-21-0Acid Yellow 23 FD&C Yellow No. 5Acid Yellow23Acid Yellow-23Fluorescent DyeInhibitorinhibitorinhibit

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