Heterocyclic compounds; with oxygen hetero-atom(s) only, containing an unfused furan ring (whether or not hydrogenated) in the structure, tetrahydrofuran

HS v2017 Code: 293211

About heterocyclic compounds; with oxygen hetero-atom(s) only, containing an unfused furan ring (whether or not hydrogenated) in the structure, tetrahydrofuran

HS code 293211 covers tetrahydrofuran, a critical heterocyclic compound with a wide range of industrial applications. As a key component in the production of various solvents, adhesives, and specialty chemicals, this code plays a significant role in the global chemical industry and broader economy. Its versatility and importance make it a crucial consideration for businesses involved in import/export activities.

Production process

Tetrahydrofuran is primarily produced through the hydrogenation of furan, a cyclic ether. This process involves the catalytic addition of hydrogen to the furan ring, resulting in the formation of the saturated tetrahydrofuran molecule. The specific production techniques may vary, but often include the use of metal catalysts, high-pressure reactors, and careful control of temperature and reaction conditions to optimize yield and purity.

Production inputs

The main inputs required for the production of tetrahydrofuran (HS code 293211) include furan as the primary raw material, as well as hydrogen gas, catalysts (such as palladium or platinum), and specialized processing equipment like hydrogenation reactors. Additionally, energy sources, such as electricity or steam, are necessary to power the production facilities and maintain the required reaction conditions.

Production outputs

Tetrahydrofuran (HS code 293211) is a versatile chemical with a wide range of applications. It is commonly used as a solvent in the production of 292090 other heterocyclic compounds, 390590 other polymers, and 391220 cellulose nitrates and their derivatives. Tetrahydrofuran is also an important precursor in the synthesis of various 293219 (other heterocyclic compounds with oxygen hetero-atom(s) only), making it a crucial input for numerous downstream industries.

Revisions to 293211

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 293211. The most recent 1 version of this code (293211) is in the HS v2022 system:

This page shows a legacy version of code 293211 ( HS v2017).

Older versions

Family tree for heterocyclic compounds; with oxygen hetero-atom(s) only, containing an unfused furan ring (whether or not hydrogenated) in the structure, tetrahydrofuran

    graph LR
    A["<a href='/classifications/hs/v2017/29'>29: Organic chemicals</a>"]
A --> B["<a href='/classifications/hs/v2017/2932'>2932: Heterocyclic compounds with oxygen hetero-atom(s) only</a>"]
B --> C["<a href='/classifications/hs/v2017/293211'>293211: Heterocyclic compounds; with oxygen hetero-atom(s) only, containing an unfused furan ring (whether or not hydrogenated) in the structure, tetrahydrofuran</a>"]

    B --> D["<a href='/classifications/hs/v2017/293212'>293212: Heterocyclic compounds; with oxygen hetero-atom(s) only, containing an unfused furan ring (whether or not hydrogenated) in the structure, 2-furaldehyde (furfuraldehyde)</a>"]
B --> E["<a href='/classifications/hs/v2017/293213'>293213: Heterocyclic compounds; with oxygen hetero-atom(s) only, containing an unfused furan ring (whether or not hydrogenated) in the structure, furfuryl alcohol and tetrahydrofurfuryl alcohol</a>"]
B --> F["<a href='/classifications/hs/v2017/293214'>293214: Heterocyclic compounds; with oxygen hetero-atom(s) only, containing an unfused furan ring (whether or not hydrogenated) in the structure, sucralose</a>"]
B --> G["<a href='/classifications/hs/v2017/293219'>293219: Heterocyclic compounds; with oxygen hetero-atom(s) only, containing an unfused furan ring (whether or not hydrogenated) in the structure, n.e.c. in item no. 2932.1</a>"]
B --> H["<a href='/classifications/hs/v2017/293220'>293220: Heterocyclic compounds; with oxygen hetero-atom(s) only, containing an unfused furan ring (whether or not hydrogenated) in the structure, lactones</a>"]
B --> I["<a href='/classifications/hs/v2017/293291'>293291: Heterocyclic compounds; with oxygen hetero-atom(s) only, (other than lactones or compounds containing an unfused furan ring (whether or not hydrogenated) in the structure), isosafrole</a>"]
B --> J["<a href='/classifications/hs/v2017/293292'>293292: Heterocyclic compounds; with oxygen hetero-atom(s) only, (other than lactones or compounds containing an unfused furan ring (whether or not hydrogenated) in the structure), 1-(1,3-benzodiaxol-5-yl) propan-2-one</a>"]
B --> K["<a href='/classifications/hs/v2017/293293'>293293: Heterocyclic compounds; with oxygen hetero-atom(s) only, (other than lactones or compounds containing an unfused furan ring (whether or not hydrogenated) in the structure), piperonal</a>"]
B --> L["<a href='/classifications/hs/v2017/293294'>293294: Heterocyclic compounds; with oxygen hetero-atom(s) only, (other than lactones or compounds containing an unfused furan ring (whether or not hydrogenated) in the structure), safrole</a>"]
B --> M["<a href='/classifications/hs/v2017/293295'>293295: Heterocyclic compounds; with oxygen hetero-atom(s) only, (other than lactones or compounds containing an unfused furan ring (whether or not hydrogenated) in the structure), tetrahydrocannabinols (all isomers)</a>"]
B --> N["<a href='/classifications/hs/v2017/293299'>293299: Heterocyclic compounds; with oxygen hetero-atom(s) only, no lactones or unfused furan rings (hydrogenated or not) in the structure, other than isosafrole, 1-(1,3-benzodiaxol-5-yl) propan-2-one, piperonal, safrole, tetrahydrocannabinols (all isomers)</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