Sulphur Black 1

• CAT Number: M047551
• CAS Number: 1326-82-5
• Molecular Formula: C6H4N2O5
• Molecular Weight: 184.11
• Purity: ≥95%
• Storage: Store at -20°C
• IUPAC Name: 2,4-dinitrophenol
• InChI: InChI=1S/C6H4N2O5/c9-6-2-1-4(7(10)11)3-5(6)8(12)13/h1-3,9H
• InChIKey: UFBJCMHMOXMLKC-UHFFFAOYSA-N
• SMILES: C1=CC(=C(C=C1[N+](=O)[O-])[N+](=O)[O-])O

Sulphur Black 1（Cat No.:M047551）, also known as C.I. Sulphur Black 1, is a water-insoluble dye predominantly used for dyeing textiles, especially cotton. It is the most widely used dye within the sulfur dye class, known for producing deep black shades. The dye is applied in a reduced form in a dye bath, where it is oxidized upon the fabric to develop its full color. Sulphur Black 1 is valued for its high color fastness and cost-effectiveness, making it a staple in the commercial fabric dyeing industry for achieving robust, enduring black tones.