甲基氯仿代谢组学试剂
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3822190010 | 10.0% | CN | US | Official Doc |
| 3822190040 | 10.0% | CN | US | Official Doc |
| 3824995000 | 41.5% | CN | US | Official Doc |
| 3824999397 | 40.0% | CN | US | Official Doc |
| 3822190010 | 10.0% | CN | US | Official Doc |
AI Analysis
🧪 Methyl Chloroform Metabolomics Reagents
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Full Analysis | Professional Customs Strategy
📌 I. Product Definition & Classification: Do You Really Understand "Methyl Chloroform Reagents"?
Methyl Chloroform Metabolomics Reagents are specialized chemical preparations used in analytical chemistry and metabolomics research. They typically contain 1,1,1-Trichloroethane (Methyl Chloroform) as a key solvent or component, utilized for extraction, calibration, or as a diagnostic/lab reagent.
In international trade, the classification depends heavily on: 1. Chemical Composition: Specifically the presence of methyl chloroform (1,1,1-trichloroethane). 2. Function: Whether it is defined strictly as a "diagnostic or laboratory reagent" or falls under general "chemical preparations."
⚠️ Key Distinction Point:
- If the product is explicitly labeled as "Diagnostic or Laboratory Reagent" AND contains methyl chloroform → It typically falls under 3822.19.
- If the product is a general chemical mixture/preparation containing methyl chloroform but not strictly a "reagent" for diagnosis → It may fall under 3824.99.
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
| HS Code | Product Description | Application Scenario | Tax Rate (Total) |
|---|---|---|---|
3822.19.00.10 |
Diagnostic/Lab Reagents, Containing Other Chemicals | Reagents where "Methyl Chloroform" matches specific chemical components in the classification; qualifies as "diagnostic/lab reagent." | 10.0% |
3822.19.00.40 |
Diagnostic/Lab Reagents, Containing Methyl Chloroform | Explicitly contains "Methyl Chloroform"; fits the material limitation for this subheading; purpose is diagnostic/lab use. | 10.0% |
3824.99.50.00 |
Chemical Preparations, Chlorinated/ Halogenated Hydrocarbons | "Methyl Chloroform" is a chlorinated organic compound; "Reagent" fits "chemical products/preparations." | 41.5% |
3824.99.93.97 |
Chemical Preparations, Other (Residual) | "Reagent" fits "chemical products/preparations"; falls under the "Other" residual category; no material conflict. | 40.0% |
🔍 Key Reminder:
- 3822.19 codes are preferred if the product is strictly a reagent for diagnosis or laboratory testing, as they benefit from 0% Base Tariff.
- 3824.99 codes are riskier due to higher base tariffs and Section 301/IEEPA surcharges, leading to ~40-41.5% total duty.
- The critical factor is whether the US Customs and Border Protection (CBP) accepts the product as a "reagent" (3822) or a general "chemical preparation" (3824).
💰 III. 2026 Latest Tariff Rate Detailed Explanation (Including Surcharges, Policy Add-ons)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: November 10, 2025 onwards (for subsequent imports)
🎯 1. 3822.19.00.10 & 3822.19.00.40 —— Diagnostic or Laboratory Reagents (Containing Methyl Chloroform)
| Item | Content |
|---|---|
| Base Tariff | 0.0% (ad valorem) |
| USITC Surcharge (Section 301) | +25.0% (Not applicable for this specific subheading in the provided data, implying 0% or exempted in this context? Note: The source data says "Base: 0%, Add-on: 0%, 122 Clause: 10%" for 3822.19.00.10/40. Wait, let's re-read the source carefully.) |
| > Correction based on Source Data: | |
> For 3822.19.00.10 and 3822.19.00.40: |
|
| > - Base Tariff: 0.0% | |
| > - Additional Tariff (USITC/301): 0.0% | |
| > - 122 Clause Tariff (IEEPA/Other): +10.0% | |
| > - Total Tariff: 10.0% |
| Item | Content |
|---|---|
| Base Tariff | 0.0% |
| USITC Surcharge | 0.0% |
| 122 Clause Tariff (IEEPA) | +10.0% (Applied to China-origin goods) |
| Total Tariff | 10.0% |
| Tax Calculation | CIF Value × 10% |
| De Minimis Exemption | ❌ Not Eligible (Deny de minimis for these specific chemical codes if flagged as high-risk or specific origin) |
| Legal Basis Path | IEEPA:9903.01.25 (or relevant 122 clause) → USITC:3822.19.00.10/40 |
📌 Explanation:
- Base 0%: Diagnostic/lab reagents generally enjoy low base tariffs.
- 122 Clause 10%: This specific tariff line (likely related to IEEPA or a specific executive order) applies a 10% surcharge.
- Total 10%: Significantly lower than the 3824 codes. This is the preferred classification if the product qualifies as a reagent.
🎯 2. 3824.99.50.00 —— Chemical Preparations (Chlorinated/Halogenated Hydrocarbons)
| Item | Content |
|---|---|
| Base Tariff | 6.5% |
| USITC Surcharge (Section 301) | +25.0% |
| 122 Clause Tariff (IEEPA) | +10.0% |
| Total Tariff | 41.5% |
| Tax Calculation | CIF Value × 41.5% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Basis Path | IEEPA:9903.01.25 → USITC:3824.99.50.00 → FOOTNOTE:301/9903 |
📌 Warning:
- This classification treats the product as a general chemical preparation, not a specific lab reagent.
- The 6.5% base + 25% Section 301 + 10% IEEPA results in a 41.5% total duty.
- This is a high-cost classification and should be avoided if the product can be justified as a lab reagent (3822).
🎯 3. 3824.99.93.97 —— Chemical Preparations (Other/Residual)
| Item | Content |
|---|---|
| Base Tariff | 5.0% |
| USITC Surcharge (Section 301) | +25.0% |
| 122 Clause Tariff (IEEPA) | +10.0% |
| Total Tariff | 40.0% |
| Tax Calculation | CIF Value × 40.0% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Basis Path | IEEPA:9903.01.25 → USITC:3824.99.93.97 → FOOTNOTE:301/9903 |
📌 Note:
- Similar to the above, but with a slightly lower base rate (5% vs 6.5%).
- Total duty is 40.0%.
- This is a "catch-all" category for chemical preparations that don't fit more specific descriptions.
- Still extremely high compared to the 10% rate for 3822 codes.
🛠️ IV. Customs Clearance Practical Advice (Combat Pit-avoidance Guide)
✅ 1. Preparation Checklist (Must-Haves)
| Document | Required | Notes |
|---|---|---|
| ✅ Product Specification Sheet | ✔️ | Must detail ingredients, specifically highlighting "Methyl Chloroform" (1,1,1-Trichloroethane) concentration and purity. |
| ✅ Statement of Use (Laboratory/Diagnostic) | ✔️ | Critical for 3822.19 classification. Must state: "Used exclusively for laboratory analysis/metabolomics research." |
| ✅ Formula/Composition | ✔️ | Provide exact chemical composition to prove it fits "diagnostic reagent" criteria. |
| ✅ Commercial Invoice | ✔️ | Clearly describe as "Metabolomics Reagent containing Methyl Chloroform for Laboratory Use." |
| ✅ Certificate of Origin (CO) | ✔️ | Required for China origin to apply IEEPA/301 rates accurately. |
✅ 2. Declaration Strategy (Key Tips)
🔥 "Reagent is Key, Reagent Saves 30%!"
| Scenario | Correct Declaration | Wrong Action |
|---|---|---|
| Strict Lab Reagent | HS Code: 3822.19.00.10 or 3822.19.00.40 |
Misclassify as 3824.99 → Save 30-31.5% tax! |
| General Chemical Mix | HS Code: 3824.99.50.00 or 3824.99.93.97 |
Claiming "Reagent" without proof → Penalty + Back Taxes |
| Unspecified Product | HS Code: 3824.99.93.97 |
Vague description "Chemical Liquid" → High Audit Risk |
📌 Actionable Advice:
- If your product is a standardized reagent for a specific test (e.g., metabolomics profiling), strongly argue for 3822.19.
- If it is a bulk solvent or a general mixture without a specific diagnostic function, accept3824.99.
✅ 3. Special Situations
| Situation | Handling Advice |
|---|---|
| Methyl Chloroform Ban/Restrictions | Ensure compliance with EPA regulations for 1,1,1-Trichloroethane. Some uses are banned. Provide safety data sheet (SDS) to prove legal use. |
| High-Value Reagent Kit | If it contains other expensive reagents, ensure the primary component (Methyl Chloroform) aligns with the description. |
| Customs Audit Risk | CBP may question the "Reagent" classification. Have laboratory use statements from end-users ready. |
🌍 V. Global Market Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff Rate | Notes |
|---|---|---|---|
| 🇺🇸 USA | 3822.19.00.10/40 |
10.0% | If classified as reagent. |
| 🇺🇸 USA | 3824.99.50.00 |
41.5% | If classified as chemical prep. |
| 🇨🇳 China | 3822.19.00.00 |
~0-6% | Varies by specific subheading; no IEEPA surcharge for imports into China from some countries, but export from China is key. |
| 🇪🇺 EU | 3822.00.19 |
~0-6% | Generally lower tariffs; no Section 301 equivalent. |
| 🇯🇵 Japan | 3822.00.19 |
~0-6% | Favorable rates for lab reagents. |
📌 Conclusion:
- USA is the most punitive market due to the 10% IEEPA + potential 25% Section 301 (if misclassified).
- Proper classification as 3822.19 saves ~31.5% in duties compared to 3824.99.
📌 VI. Common Errors & Pitfalls (Blood & Tears Lessons)
❌ Error 1: Calling a general solvent a "Reagent" to avoid taxes.
👉 Consequence: Customs rejects 3822, imposes 41.5% + penalties.
❌ Error 2: Ignoring the "122 Clause" or IEEPA surcharge.
👉 Consequence: Underpayment of 10% on all 3822 goods from China.
❌ Error 3: Missing the distinction between "Diagnostic" and "Lab" use.
👉 Consequence: Ambiguity leads to classification by CBP as 3824 (higher duty).
✅ Correct Practice:
"Metabolomics Reagent Kit, containing 1,1,1-Trichloroethane (Methyl Chloroform) for laboratory analytical purposes only. HS Code: 3822.19.00.40."
🎯 VII. Conclusion: Precise Classification, Cost Savings!
🎯 Remember the Golden Rule:
🔹 "Reagent = 3822 (10%) | Chemical Mix = 3824 (40-41.5%)"
🔹 "Define Function First, Then Choose Code"📌 Pro Tip:
- If your product is exclusively for lab use, provide Lab Use Statements.
- If in doubt, Apply for a Binding Ruling from US CBP before shipping to avoid surprise bills.
📣 Immediate Action:
📞 Contact your customs broker with Product Specs + Lab Use Statement.
🚀 Avoid the 41.5% trap, secure the 10% rate!
✨ Professional Customs, Starting from Accurate Classification!
💼 Every percent saved is pure profit!
Customer Reviews
About HS Code Classification
The Harmonized System (HS) is an internationally standardized nomenclature developed by the World Customs Organization (WCO) to classify traded products. Over 200 countries use the HS system as the basis for customs tariffs, trade statistics, and import/export regulations.
Each HS code follows a hierarchical structure:
- Chapter (2 digits) — Broad category of goods (e.g., Chapter 84: Machinery and Mechanical Appliances)
- Heading (4 digits) — More specific grouping within the chapter
- Subheading (6 digits) — Internationally standardized breakdown, used by all WCO member countries
- National subdivisions (8-10 digits) — Country-specific extensions for further classification, such as US HTSUS 10-digit codes
Correct HS code classification is essential for smooth customs clearance, accurate duty payment, and compliance with trade regulations. Misclassification can lead to customs delays, overpayment of duties, or penalties.
When importing from CN to US, the applicable tariff rates may include:
- Most-Favored-Nation (MFN) rate — The standard duty rate applied to WTO members
- General rate — Applied to countries without trade agreements
- Trade remedy duties — Additional tariffs such as Section 301 (anti-dumping), Section 232 (national security), or countervailing duties
The information provided on this page is for reference purposes only. For official classification, please consult with your local customs authority or a licensed customs broker.