Tartrazine yellow Extra Pure

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Tartrazine Yellow Extra Pure is a high-purity, water-soluble synthetic azo dye used extensively in laboratory, pharmaceutical, and regulated food and cosmetic applications. It provides a vivid yellow color with a characteristic absorption around 427 nm, making it ideal for use in analytical procedures such as spectrophotometry and dye behavior research. Its Extra Pure grade ensures low impurity content and consistent performance for research and testing. Due to its sensitization potential and ecological persistence, controlled handling and proper disposal are advised.

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Categories: LABORATORY CHEMICALS, Analytical Reagents, Biochemical Reagents, Spectroscopy Reagents Tags: AnalyticalGrade, AzoDye, E102, ExtraPure, FD&CYellow5, laboratoryreagent, SpectrophotometricStandard, SyntheticDye, Tartrazine, WaterSolubleColorant

Description

Table of Contents

Tartrazine yellow Extra Pure

PRIMARY USES

Analytical Reagent & Laboratory Applications

Used as a spectrophotometric and colorimetric standard in analytical chemistry and quality control assays
Employed in calibration of UV-Vis spectrophotometers due to its consistent absorbance properties
Applied in studies involving dye-sorption, degradation, and removal in environmental and chemical engineering research
Serves as a model compound in research on azo dye behavior in aqueous systems

Biochemical & Microbiology Research

Occasionally used in staining protocols and in microbial identification to assess uptake and reaction with azo compounds
Helps in toxicological evaluations and metabolic studies of azo dyes in biological systems

SECONDARY USES

Food Industry (in regulated quantities)

Widely used as a synthetic food colorant (E102) to impart bright yellow hue to beverages, candies, baked goods, and sauces
Applied in processed snacks, custards, soft drinks, and gelatin desserts
Subject to regulatory limitations in certain countries due to sensitivity or allergenic potential in some individuals

Pharmaceutical Industry

Used as a coloring agent in tablets, capsules, and syrups to improve product appeal and identification
Common in multivitamin preparations and antacids

Cosmetic and Personal Care Industry

Utilized in products such as shampoos, bath gels, lotions, and makeup for vibrant yellow color
May be found in toothpastes and liquid soaps

PRODUCT KEY FEATURES

Basic Identification Attributes

Chemical Name: Tartrazine
CAS Number: 1934-21-0
HS Code: 3204.12.00
Molecular Formula: C₁₆H₉N₄Na₃O₉S₂
Synonyms: FD&C Yellow No. 5, Acid Yellow 23, E102, C.I. 19140

Physical & Chemical Properties

Physical State: Powder
Color & Odor: Bright yellow to orange-yellow, odorless
Solubility: Very soluble in water; insoluble in ethanol and most organic solvents
Stability: Stable under normal temperature; sensitive to strong oxidizing and reducing agents
pH Stability: Stable in acidic to neutral pH; may degrade under strong alkaline conditions
UV-Vis Absorbance Max: ~427 nm in aqueous solution

Safety & Hazard Attributes

Hazard Class (GHS Classification): Eye irritation (Category 2B), Skin sensitization (Category 1)
NFPA Ratings: Health 1, Flammability 0, Reactivity 0
Exposure Limits: No established OSHA PEL or ACGIH TLV
Reactivity: Reacts with strong oxidizing agents; avoid mixing with incompatible chemicals

Storage & Handling Attributes

Storage Conditions: Store in a tightly closed container in a cool, dry, and dark place
Incompatible Materials: Strong oxidizers, reducing agents
Container Type: Polyethylene, amber glass, or other light-resistant containers
Shelf Life & Expiration Date: Typically stable for 2–3 years when stored properly
Special Handling Requirements: Use in well-ventilated areas; avoid generating dust; wear PPE

Regulatory & Compliance Attributes

Regulatory Status: Approved as food colorant (E102) in many regions, with usage limits; banned or restricted in some countries
Listed in: FDA, EU, JECFA, and Codex Alimentarius for food use
Transportation Restrictions: Not classified as hazardous for transport
Waste Disposal Method: Dispose according to local environmental and chemical waste regulations

Environmental & Health Impact

Ecotoxicity: Potential aquatic pollutant; high concentrations may impact aquatic organisms
Persistence in Environment: Moderately persistent; azo bond may resist biodegradation
Carcinogenicity/Mutagenicity: Not classified as carcinogenic by IARC; may cause hypersensitivity in susceptible individuals
Biodegradability: Limited biodegradability under normal conditions; advanced treatment needed for full breakdown

SAFETY HANDLING PRECAUTIONS

SAFETY PRECAUTIONS

Personal Protective Equipment (PPE):

Wear protective gloves (e.g., nitrile)
Use chemical splash goggles
Wear a lab coat or apron
Use a dust mask or respirator in case of airborne particles

Handling:

Handle in a well-ventilated area
Avoid dust generation and contact with skin or eyes
Do not ingest or inhale
Wash hands after use

Storage:

Store in a cool, dry place in a tightly sealed container
Protect from light and incompatible materials
Avoid exposure to moisture

FIRST AID MEASURES

Inhalation:

Move to fresh air
Seek medical attention if symptoms develop

Skin Contact:

Wash affected area with soap and water
Remove contaminated clothing
Seek medical advice if irritation develops

Eye Contact:

Rinse immediately with plenty of water for 15 minutes
Seek medical attention if irritation persists

Ingestion:

Rinse mouth with water
Do not induce vomiting unless instructed
Seek medical attention if symptoms appear

FIRE FIGHTING MEASURES

Flammability:

Not flammable

Extinguishing Media:

Use water spray, dry chemical, CO₂, or foam

Hazardous Combustion Products:

May emit nitrogen oxides, sulfur oxides, and carbon oxides upon combustion

Firefighter Protection:

Wear full protective clothing and self-contained breathing apparatus (SCBA)
Avoid inhalation of combustion fumes