Chemical Products

Fluorescein Sodium (CAS: 518-47-8), also called uranine, is the water-soluble sodium salt of fluorescein, a classic fluorescent dye with intense yellow-green emission. It is supplied as an orange-red powder that dissolves in water to give strongly fluorescent solutions, even at very low concentrations. It is widely used as a tracer, a marker and a colorant

1,4-Diaminoanthraquinone (CAS: 128-95-0) is an anthraquinone dye also known as Disperse Violet 1. It gives bright violet shades with good lightfastness. It is a dye in its own right and an intermediate for blue and green anthraquinone dyes made by arylation, alkylation or sulfonation. It is supplied as a violet to dark purple powder that

1,4-Diamino-2,3-dihydroanthraquinone is a partially reduced anthraquinone bearing two amino groups, supplied as a dark violet to black powder at 98% purity. The molecule sits between the fully aromatic quinone and its leuco form: the saturated 2,3-positions interrupt conjugation, shifting the colour from deep blue to violet, and the two amino groups make it reactive towards

Quinizarin (CAS: 81-64-1), or 1,4-dihydroxyanthraquinone, is an orange-red anthraquinone compound used as a dye intermediate and analytical reagent. It is the starting point for many anthraquinone dyes including 1,4-diaminoanthraquinones and arylamino derivatives, and it forms coloured complexes with metal ions such as boron and aluminium. It is also used for colouring plastics, oils and fuels

1,8-Naphthalic Anhydride (CAS: 81-84-5) is a cyclic aromatic anhydride that is a key intermediate for fluorescent dyes, optical brighteners and herbicide safeners. Its reactive anhydride ring condenses easily with amines to form naphthalimides, which are strongly fluorescent and highly stable. Typical buyers need low acenaphthene and acid impurities to maintain colour and fluorescence quality. It

1-Aminoanthraquinone (CAS: 82-45-1) is a red anthraquinone amine and a main intermediate for vat, disperse and reactive dyes. The amino group in the alpha position lets it be brominated, sulfonated or acylated into many valuable colorants. It is supplied as a red to brown powder with good thermal stability and is also used directly as

Fluorene (CAS: 86-73-7) is a tricyclic aromatic hydrocarbon from coal tar, supplied as white crystalline flakes with a faint violet fluorescence. The reactive methylene bridge at the 9-position allows easy substitution, making it a valuable building block for resins, pharmaceuticals and optoelectronic materials. It is used to prepare fluorenone, bisphenol fluorene and polyfluorene-type materials. It

4-(Diethylamino)salicylaldehyde is a substituted benzaldehyde carrying a hydroxyl group at the 2-position and a diethylamino group at the 4-position, supplied as a yellow to orange crystalline powder at 98% purity. This arrangement of donor and acceptor groups on one benzene ring creates a push-pull chromophore, so the compound is strongly coloured, strongly fluorescent after derivatisation,

2-Butanol (CAS: 78-92-2) is a secondary four-carbon alcohol supplied as a colorless liquid with a characteristic odor. It is miscible with many organic solvents and moderately soluble in water. It is widely used as an industrial solvent, as a raw material for methyl ethyl ketone (MEK) and as an intermediate for esters and plasticisers. Buyers

Solvent Violet 13 (CAS: 81-48-1) is an anthraquinone dye that dissolves in organic solvents and plastics, giving a clean bluish-violet shade with excellent lightfastness and heat stability. It is widely used to colour plastics, synthetic fibres, waxes, oils, inks and cosmetics as the colorant also known as D&C Violet 2. Its solubility in non-polar media

Acenaphthene (CAS: 83-32-9) is a polycyclic aromatic hydrocarbon in which an ethylene bridge links the 1 and 8 positions of naphthalene. It is supplied as white to pale yellow crystals. It is isolated from coal tar and is a raw material for dyes, pigments, plastics and agrochemicals. Buyers specify high purity and low colour because

N-Benzyl-N-ethyl-m-toluidine is a tertiary aromatic amine with a benzyl group and an ethyl group on the nitrogen, supplied as a pale yellow to brown clear liquid at 98% purity. The molecule is fully alkylated, so it carries no reactive N-H bond and behaves as an electron-rich but chemically stable amine that dissolves readily in aromatic

N-Ethyl-N-cyanoethyl-m-toluidine is a tertiary aromatic amine bearing an ethyl group and a propionitrile chain on nitrogen, supplied as a colourless to pale yellow clear liquid at 98% purity. The nitrile group is a masked functional handle that can be hydrolysed to an acid, reduced to an amine or cyclised, while the N-ethyl-m-toluidine core provides the