tert-Butylhydroquinone (TBHQ) Antioxidant Powder
tert-Butylhydroquinone (TBHQ) is a synthetic phenolic antioxidant used primarily to preserve fats and oils in food products by inhibiting oxidation. As a polyphenolic compound with the specific chemical structure matching this HTS subheading, it falls under 2907.29.25.00 for import classification. It is typically supplied as a white to light tan crystalline powder.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If pre-mixed as a formulated food antioxidant blend
Mixtures of organic chemicals not chemically defined as pure compounds fall under Chapter 38 as chemical preparations rather than Chapter 29 individual compounds.
If supplied as a saturated acyclic monocarboxylic acid derivative
Certain oxygen-function acid derivatives are classified in heading 2915 if they match acid-function criteria over phenol classification in 2907.
If imported primarily as a synthetic coloring stabilizer
Products used as fluorescent brightening agents or luminophores are excluded from Chapter 29 and classified under heading 3204 per chapter exclusions.
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Import Tips & Compliance
• Verify 99% minimum purity and provide Certificate of Analysis (CoA) to meet FDA food additive regulations; declare as a chemical additive not for direct consumption to avoid misclassification; check for stabilizer additions which must not alter general-use classification per Chapter 29 notes
Related Products under HTS 2907.29.25.00
Food-Grade TBHQ (tert-Butylhydroquinone) Crystals
Food-grade TBHQ crystals are a highly purified form of tert-Butylhydroquinone approved by FDA for use as an antioxidant in edible oils, shortenings, and baked goods at levels up to 0.02%. This polyphenolic compound is specifically enumerated under HTS 2907.29.25.00 due to its chemical structure as a tert-butyl substituted hydroquinone. It prevents rancidity and extends shelf life in lipid-containing foods.
Industrial TBHQ (tert-Butylhydroquinone) Flakes
Industrial-grade TBHQ flakes serve as an antioxidant stabilizer for petroleum products, rubber, and plastics, preventing oxidative degradation during storage and processing. Classified under HTS 2907.29.25.00 as it is a distinct polyphenolic compound fitting the phenol-alcohols category in Chapter 29. These flakes dissolve readily in organic solvents for easy incorporation.
Pharmaceutical-Grade tert-Butylhydroquinone
Pharmaceutical-grade TBHQ is a USP-compliant polyphenolic antioxidant used in drug formulations to protect active ingredients from oxidation, particularly in topical creams and injectables. It matches HTS 2907.29.25.00 as a specifically named polyphenol; phenol-alcohol derivative. High purity ensures stability in sensitive medicinal products.
Cosmetic TBHQ Antioxidant Pellets
TBHQ pellets formulated for cosmetics act as a lipid peroxidation inhibitor in creams, lotions, and lip products, maintaining product integrity against atmospheric oxygen. As pure tert-Butylhydroquinone, it is classified under HTS 2907.29.25.00 per Chapter 29 for separate chemically defined polyphenols. Pelleted form aids precise metering in formulations.