HSN CODE - 29222140 : GAMMA ACID

Harmonised System of Nomenclature (HSN Codes) 29222140 are used for the GAMMA ACID products under Goods and Service Tax classification.

India was originally using 6 digit HSN codes to classify commodities but later two more digits were added to make the codes more precise, resulting in an 8 digit classification.

Understanding HSN Code 29222140

First two digits (29) represent the chapter number which is Chapter 29 - Organic chemicals

Next two digits (22) represent the heading number which is OXYGEN-FUNCTION AMINO-COMPOUNDS

Next two digits (21) represent the product code which is Aminohydroxynaphthalene sulphonic acids and their salts

Last two digits (40) are for final or deeper classification which is GAMMA ACID

All 8 digits of HSN code is mandatory for export & imports for tax invoice of GST.