Fluorescent brightener 121

• CAT Number: M062574
• CAS Number: 12224-11-2
• Molecular Formula: C15H14ClN3O2S
• Molecular Weight: 335.806
• Purity: ≥95%
• Storage: Store at -20°C
• IUPAC Name: 4-[5-(4-chlorophenyl)-3,4-dihydropyrazol-2-yl]benzenesulfonamide
• InChI: InChI=1S/C15H14ClN3O2S/c16-12-3-1-11(2-4-12)15-9-10-19(18-15)13-5-7-14(8-6-13)22(17,20)21/h1-8H,9-10H2,(H2,17,20,21)
• InChIKey: VZTHUHAJEZPWNC-UHFFFAOYSA-N
• SMILES: C1CN(N=C1C2=CC=C(C=C2)Cl)C3=CC=C(C=C3)S(=O)(=O)N

Fluorescent Brightener 121(CAT: M062574), is a versatile optical brightening agent widely used in textiles, plastics, coatings, and detergents. Its unique structure enables it to absorb ultraviolet light and emit visible blue light, enhancing the whiteness and brightness of materials. This compound is particularly effective in improving the visual appeal of fabrics, synthetic fibers, and plastic products. Commonly supplied as a white to light yellow crystalline powder, Fluorescent Brightener 121 is valued for its efficiency and stability. It is an essential additive for applications requiring enhanced brightness and whiteness in industrial and consumer products.