201375

Brilliant Yellow

Dye content ≥50 %

• Synonym(s): Direct Yellow 4
• Empirical Formula (Hill Notation): C₂₆H₁₈N₄Na₂O₈S₂
• CAS Number: 3051-11-4
• Molecular Weight: 624.55
• Colour Index Number: 24890
• Beilstein/REAXYS Number: 4122338
• EC Number: 221-267-1
• MDL number: MFCD00007489
• UNSPSC Code: 12171500
• PubChem Substance ID: 24852007
• NACRES: NA.47

Properties

• form: powder
• composition: Dye content, ≥50%
• technique(s): titration: suitable
• visual transition interval: 6.5-8.0, orange to red-orange
• λmax: 497 nm at 0.1 N in NaOH
• ε (extinction coefficient): ≥37000 at 260-268 nm; ≥37000 at 486-494 nm
• application(s): diagnostic assay manufacturing; hematology; histology
• storage temp.: room temp
• SMILES string: [Na+].[Na+].Oc1ccc(cc1)\N=N\c2ccc(\C=C\c3ccc(cc3S([O-])(=O)=O)\N=N\c4ccc(O)cc4)c(c2)S([O-])(=O)=O
• InChI: 1S/C26H20N4O8S2.2Na/c31-23-11-7-19(8-12-23)27-29-21-5-3-17(25(15-21)39(33,34)35)1-2-18-4-6-22(16-26(18)40(36,37)38)30-28-20-9-13-24(32)14-10-20;;/h1-16,31-32H,(H,33,34,35)(H,36,37,38);;/q;2*+1/p-2/b2-1+,29-27+,30-28+;;
• InChI key: YLDIUICHQPKMNH-MAPAHAHLSA-L

Description

General description

Brilliant Yellow is an orange colored powder and it belongs to the group of azo dyes. It is yellow at pH 6.4 and red-orange at pH 8.0. Brilliant Yellow has been widely used as a biosensor, anti-fungal agent, anti-AIDS (acquired immunodeficiency syndrome) agent and is used in assays for enzyme activity.

Application

Brilliant Yellow has been used to determine the transfer of inoculum from male moths to females during mating.

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)