HSN Code for Halogenated, Sulphonated, Nitrated or Nitrosated Derivatives of Phenols or Phenol-alcohols - Derivatives Containing Only Sulpho Groups, Their Salts and Esters : Naphthol Sulphonic Acids : Nevile -winther Acid (1-naphthol- 4- Sulphonic Acid)

The official HSN code for HALOGENATED, SULPHONATED, NITRATED OR NITROSATED DERIVATIVES OF PHENOLS OR PHENOL-ALCOHOLS - DERIVATIVES CONTAINING ONLY SULPHO GROUPS, THEIR SALTS AND ESTERS : NAPHTHOL SULPHONIC ACIDS : NEVILE -WINTHER ACID (1-NAPHTHOL- 4- SULPHONIC ACID) is 29082024 as notified under the GST Tariff by the Central Board of Indirect Taxes and Customs (CBIC). It is required on tax invoices and e-Way bills for accurate GST compliance.