Derivatives containing only sulpho groups, their salts and esters

HS v1996 Code: 290820

Revisions to 290820

Classification codes are adjusted frequently. The code may have been revised or replaced between system versions. The table below shows the history (newest to oldest) of the code 290820. The most recent 1 version of this code (290820) is in the HS v2002 system:

This page shows a legacy version of code 290820 ( HS v1996).

Family tree for derivatives containing only sulpho groups, their salts and esters

    graph LR
    A["<a href='/classifications/hs/v1996/29'>29: Organic chemicals.</a>"]
A --> B["<a href='/classifications/hs/v1996/2908'>2908: Halogenated, sulphonated, nitrated or nitrosated derivatives of phenols or phenol-alcohols.</a>"]
B --> C["<a href='/classifications/hs/v1996/290820'>290820: Derivatives containing only sulpho groups, their salts and esters</a>"]

    B --> D["<a href='/classifications/hs/v1996/290810'>290810: Derivatives containing only halogen substituents and their salts</a>"]
B --> E["<a href='/classifications/hs/v1996/290890'>290890: Other</a>"]

    

    %% Color coordination by level

    classDef level1 color:#000,fill:#a8f9ff,stroke:#333,stroke-width:2px
    classDef level2 color:#000,fill:#e0a458,stroke:#333,stroke-width:1px
    classDef level3 color:#000,fill:#419d78,stroke:#333,stroke-width:1px
    classDef level4 color:#000,fill:#c04abc,stroke:#333,stroke-width:1px
    classDef level5 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef level6 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef highlight color:#000,fill:#fff,stroke:#000,stroke-width:5px



  %% Apply classes
  class A level2
class B level4
class C level6
class D level6
class E level6

  class C highlight

  %% class A level1
  %% class B,C level2
  %% class D,E,F,G,H,I level2
  %% class J,K,L,M,N,O,P level3
  %% class C highlight