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4-digit heading

Listed from Nov 18, 2019

2931

Other organo-inorganic compounds:

Heading

2931

17 immediate children · 46 terminal codes

Children of 2931

6-digit subheadings

  • 2931.10

    Tetramethyl lead and tetraethyl lead

    1 terminal code
  • 2931.20

    Tributyltin compounds

    1 terminal code
  • 2931.41

    Dimethyl methylphosphonate

    1 terminal code
  • 2931.42

    Dimethyl propylphosphonate

    1 terminal code
  • 2931.43

    Diethyl ethylphosphonate

    1 terminal code
  • 2931.44

    Methylphosphonic acid

    1 terminal code
  • 2931.45

    Salt of methylphosphonic acid and (aminoiminomethyl)urea (1:1)

    1 terminal code
  • 2931.46

    2,4,6-Tripropyl-1,3,5,2,4,6-trioxatriphosphinane 2,4,6-trioxide

    1 terminal code
  • 2931.47

    (5-Ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl) methyl methyl methylphosphonate

    1 terminal code
  • 2931.48

    3,9-Dimethyl-2,4,8,10-tetraoxa-3,9-diphosphaspiro [5.5] undecane 3,9-dioxide

    1 terminal code
  • 2931.49

    Other

    8 terminal codes
  • 2931.51

    Methylphosphonic dichloride

    1 terminal code
  • 2931.52

    Propylphosphonic dichloride

    1 terminal code
  • 2931.53

    O-(3-chloropropyl) O-[4-nitro-3-(trifluoromethyl)phenyl] methylphosphonothionate

    1 terminal code
  • 2931.54

    Trichlorfon (ISO)

    1 terminal code
  • 2931.59

    Other

    8 terminal codes
  • 2931.90

    Other:

    16 terminal codes

Showing 17 immediate children

Source schedule

2026 HTS Revision 21

Published Oct 9, 2026

View this code on USITC(opens in a new tab)

Schedule listing is not proof that a provision applies to an entry. Confirm the current schedule and classification before filing.

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