Brilliant yellow

Name: Brilliant yellow
Brand: Vaqora Chemicals
SKU: VQ-000511

About Brilliant yellow

Brilliant yellow (CAS 3051-11-4) is a biological stain offered by Vaqora Chemicals (Microscopy grade). The compound has the formula C26H18N4Na2O8S2, corresponding to a molecular weight of 624.6 g/mol. It is also known as Direct Yellow 4.

Store in a tightly closed container in a cool, dry and well-ventilated place. Handle it with standard laboratory precautions and appropriate personal protective equipment.

It is commonly used for 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, 100 g and 5 x 1 kg, 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.

Typical applications

Histology & cytology staining
Microscopy
Clinical laboratories
Indicator for titrations

Industries

Specifications & identifiers

Chemical identifiers
Product name	Brilliant yellow
Catalogue No.	VQ-000511
CAS Number	3051-11-4
IUPAC name	disodium;5-[(4-hydroxyphenyl)diazenyl]-2-[2-[4-[(4-hydroxyphenyl)diazenyl]-2-sulfonatophenyl]ethenyl]benzenesulfonate
Molecular formula	C₂₆H₁₈N₄Na₂O₈S₂
Molecular weight	624.6 g/mol
Exact mass	624.0361
Grade	Microscopy
HSN code	32049000
InChIKey	YLDIUICHQPKMNH-UHFFFAOYSA-L
SMILES	C1=CC(=CC=C1N=NC2=CC(=C(C=C2)C=CC3=C(C=C(C=C3)N=NC4=CC=C(C=C4)O)S(=O)(=O)[O-])S(=O)(=O)[O-])O.[Na+].[Na+]
PubChem CID	18277

Physical properties
Physical form	Other
H-bond donors / acceptors	2 / 12
TPSA	221 Å²
Synonyms	Direct Yellow 4, Sodium 4,4'-bis(p-hydroxyphenylazo)-2,2'-vinylenedibenzenesulphonate, Sodium 6,6'-(ethene-1,2-diyl)bis(3-((4-hydroxyphenyl)diazenyl)benzenesulfonate), 4,4'-Bis[(4-hydroxyphenyl)azo]stilbene-2,2'-disulfonic acid,sodium, Disodium 2,2'-(ethene-1,2-diyl)bis{5-[(4-hydroxyphenyl)diazenyl]benzene-1-sulfonate}

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 3051-11-4

Spectroscopy

Brilliant yellow, for spectroscopy 70.0%

CAS: 3051-11-4
Formula: C₂₆H₁₈N₄Na₂O₈S₂
MW: 624.6 g/mol

VQ-046147

Frequently asked questions

What is the CAS number of Brilliant yellow?

The CAS Registry Number of Brilliant yellow is 3051-11-4. It is also known as Direct Yellow 4, Sodium 4,4'-bis(p-hydroxyphenylazo)-2,2'-vinylenedibenzenesulphonate, Sodium 6,6'-(ethene-1,2-diyl)bis(3-((4-hydroxyphenyl)diazenyl)benzenesulfonate).

What is the molecular formula and molecular weight of Brilliant yellow?

Brilliant yellow has the molecular formula C26H18N4Na2O8S2 and a molecular weight of 624.6 g/mol.

Which grade and pack sizes of Brilliant yellow can I order?

We supply Brilliant yellow in Microscopy grade, in 25 g, 100 g, 5 x 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Brilliant yellow?

Yes. Every lot of Brilliant yellow 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 Brilliant yellow be shipped internationally?

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