Dioctyl Phthalate (DOP)
Dioctyl phthalate is an ester of orthophthalic acid used primarily as a plasticizer in PVC production for flexible plastics like cables and flooring. It falls under HTS 2917.34.01 as an 'other ester of orthophthalic acid' since it is a chemically defined diester derivative of 1,2-benzenedicarboxylic acid. This classification applies to separate organic compounds meeting Chapter 29 note (a).
Import Duty Rates by Country of Origin
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If blended with other plasticizers or additives exceeding 10% composition
Mixtures of chemical preparations not chemically defined fall under Chapter 38 prepared binders; Chapter 29 requires separate chemically defined compounds per note (a).
If dissolved in mineral oil for transport/stability
Petroleum oil mixtures exceed Chapter 29 solvent dissolution limits in note (e); classified by base material in Chapter 27.
If chemically modified for use in paints/varnishes
Synthetic organic products used as paint additives fall under Chapter 32; Chapter 29 excludes coloring matter derivatives per exclusion (g).
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Import Tips & Compliance
• Provide Certificate of Analysis (COA) confirming chemical purity and orthophthalic acid ester composition to avoid misclassification
• Comply with TSCA regulations; pre-notify EPA for new chemical substances if applicable
• Ensure proper HazMat labeling (UN3082) and shipping papers for environmental hazard classification
Related Products under HTS 2917.34.01
Dibutyl Phthalate (DBP)
Dibutyl phthalate is a short-chain phthalate ester used in personal care products, adhesives, and as a solvent. It imports under HTS 2917.34.01 as an orthophthalic acid diester, meeting Chapter 29 requirements for separate chemically defined organic compounds.
Dicyclohexyl Phthalate (DCHP)
DCHP provides high temperature resistance as a plasticizer in automotive under-the-hood applications and cellulose acetate. As an orthophthalic acid ester with cyclic alcohol groups, it imports under HTS 2917.34.01.
Diphenyl Phthalate
Diphenyl phthalate serves as a flame-retardant plasticizer and intermediate for dyes/pigments. This orthophthalic diester falls under HTS 2917.34.01 as a separate aromatic polycarboxylic acid derivative.
Butyl Benzyl Phthalate (BBP Alternate)
Alternative name for BBP used in nail polish and adhesives. Same HTS 2917.34.01 classification as mixed orthophthalic ester.
Diisodecyl Phthalate (DIDP)
DIDP offers low volatility for outdoor vinyl applications like siding and roofing. Orthophthalic acid ester classification under HTS 2917.34.01.
Diundecyl Phthalate
Specialty long-chain phthalate for high-temperature wire insulation. HTS 2917.34.01 orthophthalic ester.