HSN Codes · Chapter 38: Miscellaneous Chemical Products

HSN Code 3811

Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils

Typical GST rate

Varies

Depends on sub-classification

Type

Goods

HSN classification

Code level

4-digit

Heading

Reading code 3811

The first two digits (38) place this code in chapter 38 — Miscellaneous Chemical Products. As a 4-digit heading it groups a whole product family; 6 and 8-digit codes underneath it get more specific. Remember: you can never invent a shorter code by truncating a longer one — only codes that exist in the official tariff are valid.

Insecticides, disinfectants, biodiesel, and other chemical products and residuals not classified elsewhere.

More specific codes under 3811

  • 381111 — Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils — based on lead compounds
  • 38111100 — Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils — based on lead compounds — based on lead compounds
  • 381119 — Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils — other
  • 38111900 — Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils — other — other
  • 381121 — Containing petroleum oils or oils obtained from bituminous minerals
  • 38112100 — Containing petroleum oils or oils obtained from bituminous minerals
  • 381129 — Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils — other
  • 38112900 — Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils — other — other
  • 381190 — Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils — other
  • 38119000 — Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils — other — other

Frequently asked questions

The GST rate under 3811 depends on the specific item and applicable notifications. Check the classification with our HSN code finder and confirm the rate before invoicing.
Businesses with annual aggregate turnover of ₹5 crore or more must report at least 6 digits on e-invoices and e-way bills; below ₹5 crore, 4 digits is the B2B minimum. Exports require 8 digits.
Every line item on a GST tax invoice carries its HSN code alongside the description, quantity, taxable value, and tax breakup. The code also flows into your GSTR-1 HSN summary and e-way bills.

Invoice with this code in seconds

Save HSN 3811 on a product once — Invodo puts it on every invoice, e-invoice, and e-way bill automatically. Start free.