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Isopropylideneglycerol (Solketal)

Solketal is a protected glycerol ether (acetonide) used as a chiral building block in synthesis. It meets HTS 2909.49.20.00 as a chemically defined glycerol ether derivative. Key intermediate for pharmaceuticals.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3.7%+25.0%28.7%
🇲🇽Mexico3.7%3.7%
🇨🇦Canada3.7%3.7%
🇩🇪Germany3.7%3.7%
🇯🇵Japan3.7%3.7%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

2932.99Lower: 13.7% vs 28.7%

If classified as a cyclic acetal of polyhydric alcohol

Chapter notes exclude certain cyclic acetals from 2932, but unprotected polyols excluded entirely.

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Import Tips & Compliance

Provide NMR spectra confirming acetonide protection on glycerol

Declare as research chemical if lab quantities to simplify entry