Pyrogallol 99%+ ACS Reagent Grade
ACS reagent grade pyrogallic acid (99%+ purity) is a high-purity polyphenol specifically enumerated in HTS 2907.29.10.00. Supplied as fine powder meeting American Chemical Society standards for laboratory use. Essential for redox titrations and as a standard in phenolic compound analysis.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If purity drops below reagent grade specifications
Only specifically named pyrogallic acid at high purity stays in 2907.29.10; others to residual.
If when put up in laboratory reagent kits with accessories
Composite lab preparations classified as chemical mixtures.
If derivatives like pyrogallol ethers rather than parent compound
Sugar ethers and derivatives move to later Chapter 29 headings.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Require NIST-traceable certificate of analysis; ACS grade demands precise purity documentation
• Declare CAS number 87-66-1 on all paperwork; facilitates customs chemical identification
• Segregate from general lab chemicals during storage; oxidizing hazard requires specific placarding
Related Products under HTS 2907.29.10.00
Pyrogallic Acid (Pyrogallol) Powder
Pyrogallic acid, also known as pyrogallol, is a trihydroxybenzene (1,2,3-trihydroxybenzene) classified under HTS 2907.29.10.00 as a specific polyphenol. It appears as white to yellowish crystalline powder, often with added stabilizers for preservation during transport. This chemically defined organic compound is used in analytical chemistry and as a photographic developing agent.
Pyrogallol Technical Grade Crystals
Technical grade pyrogallic acid crystals (C6H3(OH)3) are chemically defined polyphenols under HTS 2907.29.10.00. These are supplied as free-flowing crystals with anticaking agents for safe transport, meeting Chapter 29 note (f). Primarily used in oxygen absorption indicators and hair dye intermediates.
Stabilized Pyrogallol for Photographic Use
Pyrogallol stabilized with sodium carbonate for photographic developing applications falls under HTS 2907.29.10.00 as a chemically defined polyphenol with permitted stabilizer (Chapter note f). Packaged in airtight containers to prevent oxidation during import.
Pyrogallic Acid Flakes Industrial Grade
Industrial grade pyrogallic acid in flake form (90-95% purity) is classified as pyrogallol under HTS 2907.29.10.00. These larger flakes reduce dusting during handling, with anti-dusting agents permitted by Chapter note (g). Used in synthetic rubber antioxidant production.
Pyrogallol with Emetic Additive Safety Grade
Safety-grade pyrogallol with added emetic for identification purposes (Chapter 29 note g) remains classified under HTS 2907.29.10.00. The emetic prevents accidental ingestion while maintaining chemical identity as trihydroxybenzene.