# HS code 2907.23: Polyphenols; phenol-alcohols, 4,4'-Isopropylidenediphenol (bisphenol A, diphenylolpropane) and its salts

> HS code 2907.23 covers polyphenols; phenol-alcohols, 4,4'-Isopropylidenediphenol (bisphenol A, diphenylolpropane) and its salts. It sits in heading 29.07 (phenols; phenol-alcohols) in chapter 29 (organic chemicals). Other goods of heading 29.07 are classified under 2907.11 (monophenols, phenol (hydroxybenzene) and its salts), 2907.12 (monophenols, cresols and their salts), 2907.13 (monophenols, octylphenol, nonylphenol and their isomers; salts thereof), 2907.15 (monophenols, naphthols or their salts) and 4 others. National tariff lines under 2907.23 are live on border.bot for the United States (1 line, also used by 1 other country).

Source: https://border.bot/hs-codes/290723
Last updated: 11 October 2026

[HS codes](https://border.bot/hs-codes) / [Chapter 29](https://border.bot/hs-codes/29) / [29.07](https://border.bot/hs-codes/2907) / [2907.23](https://border.bot/hs-codes/290723)

## Key facts

- HS code: 2907.23
- Covers: Polyphenols; phenol-alcohols, 4,4'-Isopropylidenediphenol (bisphenol A, diphenylolpropane) and its salts
- Heading: [29.07: Phenols; phenol-alcohols](https://border.bot/hs-codes/2907)
- Chapter: [29: Organic chemicals](https://border.bot/hs-codes/29)
- Edition: HS2022
- Duty in the United States: [See its 1 line](https://border.bot/countries/united-states/hs-codes/290723)

## What this code covers

HS code 2907.23 covers polyphenols; phenol-alcohols, 4,4'-Isopropylidenediphenol (bisphenol A, diphenylolpropane) and its salts.

The legal text of the subheading is “Polyphenols; phenol-alcohols: 4,4'-Isopropylidenediphenol (bisphenol A, diphenylolpropane) and its salts”, read under “Polyphenols; phenol-alcohols”, in HS2022.

## What it doesn’t cover

Other goods of heading 29.07 are classified under 2907.11 (monophenols, phenol (hydroxybenzene) and its salts), 2907.12 (monophenols, cresols and their salts), 2907.13 (monophenols, octylphenol, nonylphenol and their isomers; salts thereof), 2907.15 (monophenols, naphthols or their salts) and 4 others.

- [2907.11](https://border.bot/hs-codes/290711) Monophenols: Phenol (hydroxybenzene) and its salts
- [2907.12](https://border.bot/hs-codes/290712) Monophenols: Cresols and their salts
- [2907.13](https://border.bot/hs-codes/290713) Monophenols: Octylphenol, nonylphenol and their isomers; salts thereof
- [2907.15](https://border.bot/hs-codes/290715) Monophenols: Naphthols and their salts
- [2907.19](https://border.bot/hs-codes/290719) Monophenols: Other
- [2907.21](https://border.bot/hs-codes/290721) Polyphenols; phenol-alcohols: Resorcinol and its salts
- [2907.22](https://border.bot/hs-codes/290722) Polyphenols; phenol-alcohols: Hydroquinone (quinol) and its salts
- [2907.29](https://border.bot/hs-codes/290729) Polyphenols; phenol-alcohols: Other

## How it is structured

2907.23 is a six-digit subheading. Its first two digits, 29, are the chapter; the first four, 2907, are heading 29.07; the last two, 23, identify the subheading within the heading.

Countries add their own digits after these six for their national tariff lines.

- Chapter 29: Organic chemicals
- Heading 29.07: Phenols; phenol-alcohols
- Within the heading: Polyphenols; phenol-alcohols
- Subheading 2907.23: 4,4'-Isopropylidenediphenol (bisphenol A, diphenylolpropane) and its salts

## In other countries

National tariff lines under 2907.23 are live on border.bot for the United States (1 line, also used by 1 other country).

- [United States](https://border.bot/countries/united-states/hs-codes/290723): 1 line, used by 1 other country

- Previous subheading: [2907.22](https://border.bot/hs-codes/290722) Polyphenols; phenol-alcohols: Hydroquinone (quinol) and its salts
- Next subheading: [2907.29](https://border.bot/hs-codes/290729) Polyphenols; phenol-alcohols: Other

## Frequently asked questions

### What does HS code 2907.23 cover?

HS code 2907.23 covers polyphenols; phenol-alcohols, 4,4'-Isopropylidenediphenol (bisphenol A, diphenylolpropane) and its salts.

### Which heading and chapter is HS code 2907.23 in?

HS code 2907.23 is in heading 29.07 (phenols; phenol-alcohols) in chapter 29 (organic chemicals).

### Where are goods of heading 29.07 classified when 2907.23 doesn’t fit?

Other goods of heading 29.07 are classified under 2907.11 (monophenols, phenol (hydroxybenzene) and its salts), 2907.12 (monophenols, cresols and their salts), 2907.13 (monophenols, octylphenol, nonylphenol and their isomers; salts thereof), 2907.15 (monophenols, naphthols or their salts) and 4 others.

### Which countries’ tariffs list national lines under HS code 2907.23?

National tariff lines under 2907.23 are live on border.bot for the United States (1 line, also used by 1 other country).

## Sources and updates

The Harmonized System legal text comes from border.bot release 2 (edition HS 2022), imported from a file, and has been live since 11 October 2026.

This page was last updated on 11 October 2026.

Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.

Machine-readable: https://border.bot/hs-codes/290723.json