CAS 70288-50-1 Methyl 4-Formylphenylacetate from Japan
Identified by CAS number 70288-50-1, this is the pure methyl ester of 4-formylphenylacetic acid matching HTS 2918.30.10.00 exactly. As a separate chemically defined aromatic compound with dual oxygen functions (aldehyde and ester), it fits Chapter 29 subheading for specific named substances. Commonly traded for API synthesis.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Reference CAS 70288-50-1 prominently on invoice and packing list; ensure 4-digit HTS suffix matches for automated entry
• Pre-notify CBP for high-value chemical shipments to avoid exam delays