HS Code for Diphenylamine: 2025 Complete Guide
TL;DR: HS code for diphenylamine remains 2921.44 in 2025 under Chapter 29. Verify 8-12 digit extensions for US HTS, EU TARIC, GCC, and China tariffs amid regional updates. Essential for chemical import/export compliance and avoiding penalties.
What is Diphenylamine? HS Code Basics Explained
Diphenylamine (DPA) is a key organic chemical with precise HS code classification for global trade. Known chemically as N-phenylaniline, it drives accurate tariff rates.
- Chemical formula: C12H11N
- Molecular weight: 169.22 g/mol
- Melting point: 52-54°C
- Boiling point: 302°C
- CAS number: 122-39-4
These properties anchor its placement in HS code Chapter 29 per WCO standards.
Primary HS Code for Diphenylamine in 2025
The core HS code for diphenylamine is 2921.44, unchanged globally through 2025. It covers amine-function compounds.
| HS Level | Code | Description | 2025 Notes |
|---|
| Chapter | 29 | Organic chemicals | Stable per WCO |
| Heading | 2921 | Amine-function compounds | No revisions |
| Subheading | 2921.44 | Diphenylamine and derivatives | Verify nationals |
Always extend to country-specific digits for tariff classification 2025.
Industrial Uses Impacting Diphenylamine HS Code
Diphenylamine's applications influence its exact HS code selection and declarations.
- Antioxidant in rubber tire manufacturing
- Stabilizer for nitrocellulose explosives
- Post-harvest anti-scald treatment for apples
- Detection reagent for gunshot residue
- Intermediate for dyes, pesticides, pharmaceuticals
Pure vs. formulated forms may shift sub-classification in HS code lookup 2025.
2025 Regional HS Code Updates for Chemicals
While WCO HS stays stable until 2027, 2025 brings national tariff shifts for diphenylamine shipments.
| Region | 2025 Change | Diphenylamine Impact (2921.44) |
|---|
| United States | De minimis ends for China goods | Full 10-digit HTS mandatory |
| GCC (UAE, Saudi) | 12-digit HS rollout Jan 1 | Chemical precision required |
| European Union | CN 2025 + TARIC tweaks | Check subheading binders |
| China | Organic chemical refinements | Stricter import scrutiny |
| Australia | Tariff schedule 2025 | Amines verification needed |
Source: National customs notices, 2025.
How to Find Accurate HS Code for Diphenylamine 2025
Follow this step-by-step process for reliable diphenylamine HS code determination.
- Start with WCO HS 2022 nomenclature search for 2921.44
- Match product specs: purity, form, derivatives
- Use national tools (USITC HTS, EU TARIC, China CCIS)
- Review Chapter 29 explanatory notes
- Validate with customs broker or
Critical for HS code classification 2025 compliance.
HS Code for Diphenylamine Derivatives and Mixtures 2025
Derivatives often retain 2921.44 but require case-by-case verification.
- N-Nitrosodiphenylamine: Potential reclassification
- Rubber accelerator mixtures: Check Chapter 38
- Agrochemical formulations: May shift to 3808
- Purity <98%: Possible heading change
- Export declarations: Note all additives
Long-tail precision avoids tariff compliance 2025 issues.
Common Challenges in Diphenylamine HS Classification
2025 e-commerce and low-value chemical shipments amplify HS code risks.
- Inconsistent digit extensions across borders
- Dual-use chemical regulations
- Annual national schedule variances
- De minimis threshold abolitions
- AI tool inaccuracies in lookups
Proactive checks ensure smooth HS code lookup 2025.
HS Code Lookup Tools and Databases for 2025
Leverage official resources for diphenylamine HS code verification.
- WCO HS Database: Global base codes
- USITC HTS Search: 10-digit US specifics
- EU TARIC: Real-time EU adjustments
- China Customs CCIS: Import/export codes
- Australian BOSTA: Tariff schedules
Free, updated tools for accurate classification.
FAQ
- What is the exact HS code for diphenylamine?
- 2921.44 under Chapter 29 for organic amine compounds.
- Has diphenylamine HS code changed in 2025?
- No WCO global change; only regional digit extensions updated.
- What is the 10-digit US HTS code for diphenylamine 2025?
- Search USITC HTS using 2921.44 base for precise 10-digit match.
- How does GCC 12-digit HS affect diphenylamine?
- Mandatory from Jan 2025 for all chemical imports/exports.
- Is HS code for diphenylamine same for import and export?
- Yes at 6-digit level, but extend for destination tariffs.
- Which chapter contains diphenylamine HS code?
- Chapter 29: Organic chemicals.
- Where to find free diphenylamine HS code lookup 2025?
- WCO database and national customs portals.
- Does diphenylamine require hazardous HS declaration?
- Standard chemical; check IMDG if shipped in bulk.
- What errors occur in diphenylamine tariff classification?
- Incorrect digit extensions or ignoring mixtures/derivatives.
- How to verify HS code accuracy for chemicals in 2025?
- Cross-reference explanatory notes and consult brokers.
Resources for HS Code Compliance
For expert tariff guidance on diphenylamine shipments:
- Contact: enquiry@freightamigo.com
- HK: +852 24671689 / +852 23194879 (Business), +852 28121686 / +852 23194878 (Personal)
- CHN: +86 4008751689
- USA: +1 337 361 2833
- GBR: +44 808 189 0136
- AUS: +61 180002752
- Book a Demo
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