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.
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 further processed into finished fragrance compounds
Mixtures of odoriferous substances for perfumery exclude from Chapter 29 per note (g) limitations.
If oxidized to corresponding benzenoid acid
Aromatic carboxylic acids have later numerical order priority over aldehyde functions.
If converted to sugar acetals/ethers
Sugar derivatives of aldehydes classify under specific later headings per chapter note (c).
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Import Tips & Compliance
• Include downstream synthesis pathway documentation if requested by CBP for end-use verification
• Purity >99.8% required; lower grades risk 2912.19.50 reclassification
• Refractive index (1.375-1.377) testing prevents substitution fraud
Related Products under HTS 2912.19.40.00
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.
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.