Isobutanal (2-Methylpropanal)
Isobutanal, also known as 2-methylpropanal, is a colorless volatile liquid aldehyde with the formula (CH3)2CHCHO, classified under HTS 2912.19.40.00 as an acyclic aldehyde without other oxygen function. It is a key intermediate in organic synthesis for pharmaceuticals, fragrances, and plasticizers.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | 5.5% | +10.0% | 15.5% |
| 🇲🇽Mexico | 5.5% | +10.0% | 15.5% |
| 🇨🇦Canada | 5.5% | +10.0% | 15.5% |
| 🇩🇪Germany | 5.5% | +10.0% | 15.5% |
| 🇯🇵Japan | 5.5% | +10.0% | 15.5% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing impurities or other oxygen functions
Mixtures or impure isobutanal fall under the residual 'other' subcategory rather than the specific pure compound heading.
If imported as stabilized solution for safety/transport
Chapter 29 note (e) allows classification with solvents if solely for safety/transport, potentially shifting to earlier acyclic hydrocarbon heading.
If imported as formulated mixture for specific industrial use
Complex mixtures exceeding simple stabilizer additions per chapter notes classify as chemical preparations in Chapter 38.
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
• Provide detailed chemical analysis certificates confirming purity >99% and absence of other oxygen functions to avoid reclassification
• Ensure proper hazardous material labeling (UN 2045, flammable liquid) and compliance with DOT/IATA shipping regulations
• Verify supplier COA matches HTS description; impurities >1% may shift to 'other' acyclic aldehydes under 2912.19.50
Related Products under HTS 2912.19.40.00
Isobutyraldehyde Technical Grade
Technical grade isobutanal (95-98% purity) used in industrial production of isobutanol and methacrolein, falling under HTS 2912.19.40.00 for its primary acyclic aldehyde structure without additional oxygen functions. Commonly employed in resin and rubber chemical manufacturing.
Isobutanal ACS Reagent Grade
ACS reagent grade isobutanal (>99.5% purity) for laboratory synthesis and analysis, precisely classified under HTS 2912.19.40.00 as a separate chemically defined acyclic aldehyde. Used in organic chemistry research and as a standard in chromatography.
2-Methylpropanal Stabilized
Stabilized isobutanal with BHT antioxidant to prevent polymerization, classified under HTS 2912.19.40.00 per Chapter 29 note (f) allowing stabilizers necessary for preservation. Used in fragrance synthesis and polymer production.
Isovaleraldehyde Precursor Isobutanal
High-purity isobutanal serving as precursor for isovaleraldehyde synthesis in flavor chemistry, under HTS 2912.19.40.00 for acyclic aldehydes. Critical for green leaf volatile production in perfumes.