Acyclic aldehydes without other oxygen function :-- Methanal (formaldehyde)

HS v1996 Code: 291211

Revisions to 291211

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 291211. The most recent 1 version of this code (291211) is in the HS v2022 system:

This page shows a legacy version of code 291211 ( HS v1996).

Family tree for acyclic aldehydes without other oxygen function :-- methanal (formaldehyde)

    graph LR
    A["<a href='/classifications/hs/v1996/29'>29: Organic chemicals.</a>"]
A --> B["<a href='/classifications/hs/v1996/2912'>2912: Aldehydes, whether or not with other oxygen function; cyclic polymers of aldehydes; paraformaldehyde.</a>"]
B --> C["<a href='/classifications/hs/v1996/291211'>291211: Acyclic aldehydes without other oxygen function :-- Methanal (formaldehyde)</a>"]

    B --> D["<a href='/classifications/hs/v1996/291212'>291212: Acyclic aldehydes without other oxygen function :-- Ethanal (acetaldehyde)</a>"]
B --> E["<a href='/classifications/hs/v1996/291213'>291213: Acyclic aldehydes without other oxygen function :-- Butanal (butyraldehyde, normal isomer)</a>"]
B --> F["<a href='/classifications/hs/v1996/291219'>291219: Acyclic aldehydes without other oxygen function :-- Other</a>"]
B --> G["<a href='/classifications/hs/v1996/291221'>291221: Cyclic aldehydes without other oxygen function :-- Benzaldehyde</a>"]
B --> H["<a href='/classifications/hs/v1996/291229'>291229: Cyclic aldehydes without other oxygen function :-- Other</a>"]
B --> I["<a href='/classifications/hs/v1996/291230'>291230: Aldehyde-alcohols</a>"]
B --> J["<a href='/classifications/hs/v1996/291241'>291241: Aldehyde-ethers, aldehyde-phenols and aldehydes with other oxygen function :-- Vanillin (4-hydroxy-3-methoxybenzaldehyde)</a>"]
B --> K["<a href='/classifications/hs/v1996/291242'>291242: Aldehyde-ethers, aldehyde-phenols and aldehydes with other oxygen function :-- Ethylvanillin (3-ethoxy-4-hydroxybenzaldehyde)</a>"]
B --> L["<a href='/classifications/hs/v1996/291249'>291249: Aldehyde-ethers, aldehyde-phenols and aldehydes with other oxygen function :-- Other</a>"]
B --> M["<a href='/classifications/hs/v1996/291250'>291250: Cyclic polymers of aldehydes</a>"]
B --> N["<a href='/classifications/hs/v1996/291260'>291260: Paraformaldehyde</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 F level6
class G level6
class H level6
class I level6
class J level6
class K level6
class L level6
class M level6
class N 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