1. Dye Reagents

Tartrazine (Synonyms: Acid Yellow 23; FD&C Yellow 5; C.I. 19140)

Cat. No.: HY-D0257
Handling Instructions

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

Size Price Stock Quantity
Free Sample (0.5-1 mg)   Apply now  
10 mM * 1 mL in DMSO $55 In-stock
1 g $50 In-stock
5 g   Get quote  
10 g   Get quote  

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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.

Preparing Stock Solutions
Concentration Volume 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
10 mM 0.1871 mL 0.9357 mL 1.8714 mL
Please refer to the solubility information to select the appropriate solvent.
Molecular Weight

534.36

Formula

C₁₆H₉N₄Na₃O₉S₂

CAS No.

1934-21-0

Storage
Powder -20°C 3 years
  4°C 2 years
In solvent -80°C 6 months
  -20°C 1 month
Shipping

Room temperature in continental US; may vary elsewhere

Solvent & Solubility

DMSO: 10 mg/mL

* "<1 mg/mL" means slightly soluble or insoluble. "≥" means soluble, but saturation unknown.

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Tartrazine
Cat. No.:
HY-D0257
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