Tartrazine

Name: Tartrazine
Brand: Vaqora Chemicals
SKU: VQ-045721

About Tartrazine

Tartrazine (CAS 1934-21-0) is a biological stain offered by Vaqora Chemicals. With the molecular formula C16H9N4Na3O9S2, it has a molar mass of 534.4 g/mol. Alternative names: Yellow 5 and Food Yellow 4.

Store sealed in a dry, well-ventilated location away from incompatible materials. Handle it with standard laboratory precautions and appropriate personal protective equipment.

Typical applications include histology and cytology staining, microscopy, clinical laboratories and indicator for titrations. It is used across academic and industrial research, diagnostics and biotechnology and textiles and dyeing.

Standard pack sizes are 25 g and 100 g, and every batch ships with a Certificate of Analysis (COA) and we export worldwide. A Safety Data Sheet (SDS) and technical specifications are available on request. Larger quantities and custom packaging are available. Request a quote for pricing and lead time.

Typical applications

Histology & cytology staining
Microscopy
Clinical laboratories
Indicator for titrations

Industries

Specifications & identifiers

Chemical identifiers
Product name	Tartrazine
Catalogue No.	VQ-045721
CAS Number	1934-21-0
IUPAC name	trisodium;5-oxo-1-(4-sulfonatophenyl)-4-[(4-sulfonatophenyl)diazenyl]-4H-pyrazole-3-carboxylate
Molecular formula	C₁₆H₉N₄Na₃O₉S₂
Molecular weight	534.4 g/mol
Exact mass	533.9504
HSN code	32041211
InChIKey	UJMBCXLDXJUMFB-UHFFFAOYSA-K
SMILES	C1=CC(=CC=C1N=NC2C(=NN(C2=O)C3=CC=C(C=C3)S(=O)(=O)[O-])C(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+].[Na+]
PubChem CID	164825

Physical properties
Physical form	Other
H-bond donors / acceptors	0 / 12
TPSA	229 Å²
Synonyms	Yellow 5, Food Yellow 4, Aizen tartrazine, Tartraphenine, Tartran Yellow, Amacid Yellow T, Cilefa Yellow T, FD&C Yellow No. 5, A.F. Yellow No. 4, FD & C Yellow no. 5, Tartrazine FD&C Yellow #5, Atul Tartrazine

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 1934-21-0

AR / Microscopy

Tartrazine, GR for microscopy

CAS: 1934-21-0
Formula: C₁₆H₉N₄Na₃O₉S₂
MW: 534.4 g/mol

VQ-000717

Frequently asked questions

What is the CAS number of Tartrazine?

The CAS Registry Number of Tartrazine is 1934-21-0. It is also known as Yellow 5, Food Yellow 4, Aizen tartrazine.

What is the molecular formula and molecular weight of Tartrazine?

Tartrazine has the molecular formula C16H9N4Na3O9S2 and a molecular weight of 534.4 g/mol.

Which grade and pack sizes of Tartrazine can I order?

We supply Tartrazine, in 25 g, 100 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Tartrazine?

Yes. Every lot of Tartrazine is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Tartrazine be shipped internationally?

Yes. We export Tartrazine worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.