Polyphenols; hydroquinone (quinol) and its salts

HS v2022 Code: 290722

About polyphenols; hydroquinone (quinol) and its salts

HS code 290722 covers polyphenols, hydroquinone (quinol), and their salts. These organic compounds are widely used in the chemical industry, with applications ranging from pharmaceuticals and cosmetics to industrial processes. As an important class of aromatic compounds, polyphenols and hydroquinone play a crucial role in various sectors, contributing to the broader economy through their diverse applications.

Production process

The production of polyphenols, hydroquinone, and their salts typically involves chemical synthesis processes. Key steps may include oxidation, reduction, and purification techniques to isolate the desired compounds from raw materials. Manufacturers often utilize specialized equipment and carefully controlled reaction conditions to ensure consistent quality and yield.

Production inputs

The main inputs required for the production of HS code 290722 products include aromatic precursor compounds, such as benzene, phenol, and their derivatives. Additionally, manufacturers may require various reagents, catalysts, and solvents to facilitate the chemical reactions. Specialized production equipment, such as reactors, distillation columns, and purification systems, are also essential for the efficient and reliable manufacture of these organic compounds.

Production outputs

The outputs of HS code 290722 include a range of polyphenols, hydroquinone, and their salts, which find applications in numerous industries. These compounds may be further processed or incorporated into the production of 300000 Pharmaceutical Products, 330000 Cosmetic and Toiletry Preparations, and 290000 Organic Chemicals, among others. The versatility of these organic compounds ensures their widespread use and importance within the broader chemical industry.

Revisions to 290722

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 290722. The most recent 1 version of this code (290722) is in the HS v2022 system (this version):

This page shows the most recent version of code 290722.

Family tree for polyphenols; hydroquinone (quinol) and its salts

    graph LR
    A["<a href='/classifications/hs/v2022/29'>29: Organic chemicals</a>"]
A --> B["<a href='/classifications/hs/v2022/2907'>2907: Phenols; monophenols, polyphenols, and phenol-alcohols</a>"]
B --> C["<a href='/classifications/hs/v2022/290722'>290722: Polyphenols; hydroquinone (quinol) and its salts</a>"]

    B --> D["<a href='/classifications/hs/v2022/290711'>290711: Monophenols; phenol (hydroxybenzene) and its salts</a>"]
B --> E["<a href='/classifications/hs/v2022/290712'>290712: Monophenols; cresols and their salts</a>"]
B --> F["<a href='/classifications/hs/v2022/290713'>290713: Monophenols; octylphenol, nonylphenol and their isomers, salts thereof</a>"]
B --> G["<a href='/classifications/hs/v2022/290715'>290715: Monophenols; naphthols and their salts</a>"]
B --> H["<a href='/classifications/hs/v2022/290719'>290719: Monophenols; n.e.c. in item no. 2907.1</a>"]
B --> I["<a href='/classifications/hs/v2022/290721'>290721: Polyphenols; resorcinol and its salts</a>"]
B --> J["<a href='/classifications/hs/v2022/290723'>290723: Polyphenols; 4,4'-isopropylidenediphenol (bisphenol A, diphenylolpropane) and its salts</a>"]
B --> K["<a href='/classifications/hs/v2022/290729'>290729: Phenol-alcohols and polyphenols n.e.c. in item number 2907.2</a>"]

    

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