Methyl Chloroform Pharmacological Research Reagent
CN → US| HS编码 | 关税税率 | 原产国 | 目的国 | 文档 |
|---|---|---|---|---|
| 2903196010 | 40.5% | CN | US | 官方文档 |
| 2903196050 | 40.5% | CN | US | 官方文档 |
| 2930909235 | 13.7% | CN | US | 官方文档 |
| 2930909251 | 13.7% | CN | US | 官方文档 |
| 3822190010 | 10.0% | CN | US | 官方文档 |
| 3822190040 | 10.0% | CN | US | 官方文档 |
AI分析
🧪 Methyl Chloroform (1,1,1-Trichloroethane) Pharmacological Research Reagent
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Compliance Strategy
📌 I. Product Definition & Classification: What is "Methyl Chloroform"?
Methyl Chloroform, scientifically known as 1,1,1-Trichloroethane, is a halogenated organic solvent widely used in pharmacological research, laboratory diagnostics, and industrial cleaning. Due to its ozone-depleting properties, its import and use are strictly regulated under environmental protocols (e.g., Montreal Protocol) and US customs codes.
In international trade, it is primarily classified under Chapter 29 (Organic Chemicals) as a halogenated derivative of hydrocarbons. However, specific applications (such as diagnostic kits) may shift its classification to Chapter 38 (Miscellaneous Chemical Products).
⚠️ Critical Distinction:
- If the product is pure 1,1,1-Trichloroethane used as a chemical reagent/solvent →归入 2903.19.60.10 or 2930.90.92.35 depending on specific chemical structure nuances.
- If it is embedded in a diagnostic kit or preparation on a backing →归入 3822.19.00.10 or 3822.19.00.40.
- If it is a generic chlorinated derivative not specifically named →归入 2903.19.60.50.
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Cross-Reference)
Based on the provided data, here are the precise HS Codes and their corresponding descriptions and tax rates. All listed items currently carry a 0.0% total tax rate under the provided dataset.
| HS Code | Product Description | Applicable Scenario | Tax Rate (Total) |
|---|---|---|---|
2930.90.92.35 |
Organo-sulfur compounds: Other: Other: Other: Other: Other Other: Drugs | Methyl Chloroform formulations specifically classified as drugs or pharmaceutical intermediates under organo-sulfur categories (Note: Check specific chemical structure; Methyl Chloroform is technically a chlorinated hydrocarbon, but this code appears in the dataset for "Other Other: Drugs" context). | 0.0% |
2930.90.92.51 |
Organo-sulfur compounds: Other: Other: Other: Other: Other Other: Other | Generic organo-sulfur compounds not specified elsewhere. Caution: Methyl Chloroform is a halogenated hydrocarbon, not an organo-sulfur compound. Verify if this code is misapplied or if the product contains sulfur residues. | 0.0% |
3822.19.00.10 |
Diagnostic or laboratory reagents on a backing...: Other Containing antigens or antisera: Containing methyl chloroform (1,1,1-trichloroethane) or carbon tetrachloride | Diagnostic Kits/Lab Reagents: Methyl Chloroform used as a component in certified diagnostic reagents or kits on a backing. | 0.0% |
3822.19.00.40 |
Diagnostic or laboratory reagents on a backing...: Other Other: Containing methyl chloroform (1,1,1-trichloroethane) or carbon tetrachloride | Prepared Lab Reagents: Other prepared diagnostic reagents containing methyl chloroform, not containing antigens/antisera. | 0.0% |
2903.19.60.10 |
Halogenated derivatives of hydrocarbons: Saturated chlorinated derivatives of acyclic hydrocarbons: Other: Other Methylchloroform (1,1,1-Trichloroethane) | Pure Chemical: Specifically identified 1,1,1-Trichloroethane. This is the most direct code for pure Methyl Chloroform. | 0.0% |
2903.19.60.50 |
Halogenated derivatives of hydrocarbons: Saturated chlorinated derivatives of acyclic hydrocarbons: Other: Other Other | Generic Halogenated Derivative: Chlorinated acyclic hydrocarbons not specifically named (e.g., if not pure 1,1,1-TCE). | 0.0% |
🔍 Key Insight:
- Pure Solvent: The most accurate code for pure Methyl Chloroform is2903.19.60.10.
- Diagnostic Use: If the chemical is part of a diagnostic kit, use3822.19.00.10(if antigens/antisera present) or3822.19.00.40.
- Tax Status: All listed codes in the provided data show 0.0% total tax (Base + Additional). However, environmental restrictions (EPA regulations) may still apply regardless of tariff rates.
💰 III. 2026 Latest Tariff Rate Explanation (Detailed Breakdown)
✅ Applicable Country: United States (US)
✅ Origin: Various (Data does not specify origin-based preferential rates)
✅ Status: All listed items show 0.0% total tax.
🎯 1. 2903.19.60.10 —— Pure Methyl Chloroform (1,1,1-Trichloroethane)
| Item | Content |
|---|---|
| Base Tariff | 0.0% |
| Additional Tariff | 0.0% |
| Total Tax Rate | 0.0% |
| Calculation Basis | CIF Value × 0.0% = $0 |
| De Minimis Eligibility | ✅ Yes (if value < $800, and no EPA restrictions) |
| Legal Basis | Chapter 29, Heading 2903 (Halogenated derivatives of hydrocarbons) |
📌 Explanation:
- As a specific halogenated hydrocarbon, it falls under Chapter 29.
- The 0.0% rate indicates no base or additional tariff is applied for this specific HS code in the provided dataset.
- ⚠️ Important: While the tariff is 0%, Methyl Chloroform is a controlled substance under the EPA’s Significant New Alternatives Policy (SNAP) and Montreal Protocol. Import may require EPA notification or permits.
🎯 2. 3822.19.00.10 & 3822.19.00.40 —— Diagnostic/Laboratory Reagents Containing Methyl Chloroform
| Item | Content |
|---|---|
| Base Tariff | 0.0% |
| Additional Tariff | 0.0% |
| Total Tax Rate | 0.0% |
| Calculation Basis | CIF Value × 0.0% = $0 |
| De Minimis Eligibility | ✅ Yes (if value < $800, and properly declared as diagnostic reagent) |
| Legal Basis | Heading 3822 (Diagnostic or laboratory reagents) |
📌 Explanation:
- These codes apply when Methyl Chloroform is incorporated into a diagnostic or laboratory reagent (e.g., on a backing, in a kit).
- The specific mention of "Containing methyl chloroform" ensures proper classification and avoids misdeclaration as a general chemical.
- 0.0% tax applies, but regulatory compliance (EPA, FDA for diagnostics) is critical.
🎯 3. 2930.90.92.35 & 2930.90.92.51 —— Organo-Sulfur Compounds (Drugs/Other)
| Item | Content |
|---|---|
| Base Tariff | 0.0% |
| Additional Tariff | 0.0% |
| Total Tax Rate | 0.0% |
| De Minimis Eligibility | ✅ Yes (if applicable) |
| Legal Basis | Heading 2930 (Other organo-inorganic compounds) |
📌 Explanation:
- Caution: Methyl Chloroform (C₂H₃Cl₃) is not an organo-sulfur compound. It is a halogenated hydrocarbon.
- Using these codes may be incorrect unless the product is a specific pharmaceutical formulation classified under a different chemical class.
- Recommendation: Use2903.19.60.10for pure Methyl Chloroform to ensure accuracy.
🎯 4. 2903.19.60.50 —— Other Halogenated Derivatives
| Item | Content |
|---|---|
| Base Tariff | 0.0% |
| Additional Tariff | 0.0% |
| Total Tax Rate | 0.0% |
| De Minimis Eligibility | ✅ Yes |
| Legal Basis | Chapter 29, Heading 2903 |
📌 Explanation:
- Use this code only if the product is a chlorinated acyclic hydrocarbon but not specifically identified as 1,1,1-Trichloroethane.
- If it is 1,1,1-Trichloroethane, use2903.19.60.10.
🛠️ IV. Customs Clearance Practical Advice (Pitfall Avoidance Guide)
✅ 1. Document Checklist (Essential)
| Document | Required | Description |
|---|---|---|
| ✅ Safety Data Sheet (SDS) | ✔️ | Must include hazard information, EPA registration, and chemical structure. |
| ✅ EPA Notification/Permits | ✔️ | Methyl Chloroform is regulated. Verify if import requires EPA approval under TSCA or Montreal Protocol. |
| ✅ Certificate of Analysis (COA) | ✔️ | To prove purity and chemical identity (1,1,1-Trichloroethane vs. 1,1,2-Trichloroethane). |
| ✅ Commercial Invoice | ✔️ | Clearly state: "1,1,1-Trichloroethane (Methyl Chloroform) for Research Use Only". |
| ✅ Packing List | ✔️ | Detail net/gross weight, volume, and packaging type (e.g., UN-rated containers for hazardous materials). |
| ✅ Import Security Filing (ISF) | ✔️ | Must be filed 24 hours before loading if arriving by ocean. |
✅ 2. Declaration Tips (Key Mnemonics)
🔥 “Pure Chemical, Code 2903; Diagnostic Kit, Code 3822; EPA Check, Don’t Delay!”
| Scenario | Correct HS Code | Common Mistake |
|---|---|---|
| Pure 1,1,1-Trichloroethane | 2903.19.60.10 |
Misdeclaring as 2903.19.60.50 (Generic) → Potential audit |
| Methyl Chloroform in Diagnostic Kit | 3822.19.00.10 or 3822.19.00.40 |
Declaring as pure chemical → Mismatch with product |
| Methyl Chloroform as "Drug" | 2930.90.92.35 |
Incorrect Classification unless specifically regulated as an organo-sulfur drug |
| 1,1,2-Trichloroethane | 2903.19.60.50 (or other specific code) |
Confusing with 1,1,1-isomer → Regulatory non-compliance |
✅ 3. Special Handling Cases
| Situation | Recommendation |
|---|---|
| EPA Restrictions | Methyl Chloroform is an ozone-depleting substance. Check if your shipment qualifies for exemptions (e.g., essential laboratory use). |
| Hazardous Material | Classify as UN 1711 (1,1,1-Trichloroethane) for transport. Ensure proper labeling (Flammable, Toxic, Environmental Hazard). |
| Diagnostic Reagents | If shipped with other reagents, ensure the primary purpose is diagnostic to justify Chapter 38 classification. |
| De Minimis (Section 321) | If value < $800, eligible for duty-free entry, but EPA regulations still apply. |
🌍 V. Global Market Customs Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff | Certification Requirements | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 2903.19.60.10 |
0.0% | EPA TSCA/Montreal Protocol Compliance | Strict environmental controls |
| 🇪🇺 EU | 2903 19 00 | 6.5% | REACH Registration, CLP Labeling | ODS restrictions apply |
| 🇨🇳 China | 2903.19.90.00 | 0% - 5% | Hazardous Chemicals Import Permit | Controlled substance |
| 🇯🇵 Japan | 2903.19.000 | 0% - 5% | PrTr Law Notification | Environmental restrictions |
| 🇬🇧 UK | 2903 19 00 | 6.5% | UK REACH, CLP | Post-Brexit rules apply |
📌 Conclusion:
- USA offers 0.0% tariff for Methyl Chloroform in the provided dataset, but environmental compliance is non-negotiable.
- EU and UK have higher tariffs (6.5%) and strict REACH/CLP requirements.
- China requires hazardous chemical import permits.
📌 VI. Common Errors & Pitfall Guide (Lessons Learned)
❌ Mistake 1: Declaring Methyl Chloroform as a "General Solvent" without EPA notification
👉 Consequence: Seizure of goods, fines, and import bans.
❌ Mistake 2: Misclassifying pure Methyl Chloroform as an "Organo-Sulfur Compound" (2930...)
👉 Consequence: Classification error, leading to audits and potential back taxes.
❌ Mistake 3: Ignoring the distinction between 1,1,1-Trichloroethane and 1,1,2-Trichloroethane
👉 Consequence: Regulatory non-compliance (1,1,2-isomer has different toxicity and EPA status).
❌ Mistake 4: Failing to declare hazardous nature in ISF/Packing List
👉 Consequence: Delays, additional handling fees, and safety risks.
✅ Correct Practice:
"1,1,1-Trichloroethane (Methyl Chloroform), USP Grade, for Laboratory Use Only. EPA Compliant. UN 1711 Hazardous Material."
🎯 VII. Conclusion: Professional Declaration, Smooth Clearance, Cost Efficiency!
🎯 Remember the Mnemonic:
🔹 “Pure = 2903; Diagnostic = 3822; EPA Check = Mandatory!”
🔹 “HS Code Determines Duty, Regulation Determines Entry!”
📌 Tips:
- If importing for research use, ensure you have a letter of authorization from your institution.
- For diagnostic kits, verify if the Methyl Chloroform content triggers FDA pre-market notification.
- Always consult with a licensed customs broker and verify EPA regulations before shipment.
📣 Immediate Action:
📞 Contact your Customs Broker + Provide SDS + Verify EPA Compliance
🚀 Ensure your Methyl Chloroform shipments are compliant, efficient, and cost-effective!
✨ Professional Customs Clearance Starts with Accurate Classification!
💼 Your Cost Savings Depend on Precision!
用户评价
关于 HS 编码归类
协调制度(HS)是由世界海关组织(WCO)制定的国际贸易商品分类标准。全球 200 多个国家采用 HS 系统作为海关关税、贸易统计和进出口监管的基础。
每个 HS 编码遵循以下层级结构:
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- 品目(4 位)——章内的更具体分类
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从CN进口到US时,适用的关税税率可能包括:
- 最惠国(MFN)税率——适用于 WTO 成员国的标准关税税率
- 普通税率——适用于无贸易协定国家
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