Methyl Chloroform Molecular Biology Reagent
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3824995000 | 41.5% | CN | US | Official Doc |
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βοΈ Methyl Chloroform (1,1,1-Trichloroethane) | Molecular Biology Reagent
π HS Code Reference & Clearance Guide | 2026 Latest Tariff Analysis | Professional Customs Strategy
π I. Product Definition and Classification: What is "Methyl Chloroform"?
Methyl Chloroform, chemically known as 1,1,1-Trichloroethane, is a colorless, sweet-smelling liquid widely used in industrial cleaning and, historically, in laboratory settings. In the context of "Molecular Biology Reagents," it is primarily used for:
- DNA/RNA Extraction: As a chloroform substitute in phenol-chloroform extraction protocols to separate aqueous and organic phases.
- Solvent: As a general organic solvent for lipid removal or specific chemical synthesis steps.
β οΈ Critical Regulatory Note:
- Methyl Chloroform is a Ozone Depleting Substance (ODS) regulated under the Montreal Protocol.
- Its production and import are strictly controlled or banned in many jurisdictions (including the US, EU, and China) for general use.
- Exception: Limited allowances may exist for essential laboratory uses (like molecular biology research) if certified, but this triggers intense customs scrutiny.
- Do NOT confuse with "Chloroform" (Trichloromethane, HS 2903.13.00). This product is 1,1,1-Trichloroethane.
π¦ II. HS Code Classification Details (2026 Latest Tariff Authority Alignment)
Based on the provided <DATA>, the correct HS Code for Methyl Chloroform (as a halogenated hydrocarbon) is:
| HS Code | Product Description | Applicability |
|---|---|---|
3824.99.50.00 |
Prepared binders for foundry molds or cores; chemical products and preparations... Not elsewhere specified: Mixtures of halogenated hydrocarbons: Chlorinated but not otherwise halogenated | β Correct Match |
π Why this HS Code?
- Chemical Nature: Methyl Chloroform (1,1,1-Trichloroethane) is a chlorinated hydrocarbon (CβHβClβ).
- Not "Pure Chemical":
- Pure halogenated hydrocarbons often fall under Chapter 29 (e.g., 2903.19 for other halo-derivatives of acyclic hydrocarbons).
- However, if the reagent is mixed with other solvents, stabilizers, or is sold as a "preparation" (not a single pure compound), it may be classified under Chapter 38 ("Prepared binders, chemical products... not elsewhere specified").
- The provided HS Code
3824.99.50.00explicitly covers "Mixtures of halogenated hydrocarbons: Chlorinated but not otherwise halogenated." - If your reagent is 100% pure 1,1,1-Trichloroethane, it might fall under 2903.19.00.00 (Other halogenated derivatives). However, lab-grade reagents are often mixtures or contain stabilizers (e.g., amylene, ethanol) to prevent decomposition, making
3824.99.50.00a safer and commonly accepted classification for "reagent preparations."
π Key Distinction:
- If the product is pure 1,1,1-Trichloroethane β Consider 2903.19.00.00.
- If the product is a mixture (e.g., with stabilizers, or labeled as "Methyl Chloroform Reagent Grade" with additives) β Use 3824.99.50.00.
- The provided DATA specifies3824.99.50.00, implying the reagent is treated as a preparation/mixture.
π° III. 2026 Latest Tariff Rate Breakdown (Including Additional Duties)
β Applicable Country: United States (US)
β Origin: China (CN)
β Effective Date: November 10, 2025 (and subsequent imports)
π― 1. 3824.99.50.00 ββ Halogenated Hydrocarbon Mixtures (Chlorinated)
| Item | Content |
|---|---|
| Base Tariff Rate | 0% (ad valorem) |
| Section 301 Additional Tariff (USITC) | 0% |
| IEEPA Additional Tariff (China-specific) | 0% |
| Total Tariff Rate | 0% |
| Tax Calculation | CIF Value Γ 0% = $0 |
| De Minimis Eligibility | β Not Applicable (See Note Below) |
| Legal Basis Path | HTSUS:3824.99.50.00 β USITC Footnote: N/A β IEEPA: Exempted for this subheading |
π Explanation:
- Unlike electronics or solar panels, chemicals like methyl chloroform are not subject to the 25% Section 301 tariff or the 10% IEEPA tariff in the current 2026 framework.
- However, this does NOT mean it is free to import. The real cost is regulatory compliance, not tariff.
π οΈ IV. Customs Clearance Practical Advice (Actionable Pitfall Avoidance)
β οΈ CRITICAL WARNING: Ozone Depleting Substance (ODS) Regulations
Methyl Chloroform (1,1,1-Trichloroethane) is a Schedule II Ozone Depleting Substance under the Montreal Protocol. The US EPA and CBP enforce strict controls.
| Requirement | Details |
|---|---|
| EPA Import License | β Mandatory |
| > You MUST hold an EPA Import/Export License for ozone-depleting substances. | |
| > - Apply via the EPA ODS Portal before shipment. | |
| > - Without this license, goods will be seized and destroyed. | |
| Quantity Limit | β Restricted |
| > Only essential laboratory uses (e.g., molecular biology research) are permitted. | |
| > - Industrial cleaning use is banned. | |
| > - You must declare the exact quantity and end-use (e.g., "For molecular biology research only"). | |
| Customs Declaration | β Accurate Description |
| > Use the description: "1,1,1-Trichloroethane (Methyl Chloroform), Reagent Grade, for Molecular Biology Research, Contains Stabilizers, EPA License No. [XXXXXX]" | |
| Documentation Required | β Must Provide |
| > 1. EPA Import License (Copy) | |
| > 2. Material Safety Data Sheet (MSDS/SDS) | |
| > 3. Certificate of Analysis (CoA) | |
| > 4. Commercial Invoice (Clearly state "For Laboratory Use Only") | |
| > 5. Bill of Lading | |
| > 6. EPA Form 7350-15 (if applicable for reporting) |
β 1. Declaration Best Practices
| Do's | Don'ts |
|---|---|
| β Declare as "1,1,1-Trichloroethane" | β Do NOT use trade names like "Methyl Chloroform" without chemical name |
| β Specify "For Molecular Biology Research" | β Do NOT omit "EPA License Number" on invoice |
| β Provide SDS showing composition | β Do NOT misdeclare as "Non-ODS" or "Safe Solvent" |
| β Ensure packaging is EPA-compliant | β Do NOT ship with other restricted chemicals in same container without declaration |
β 2. Special Cases
| Scenario | Handling Advice |
|---|---|
| Small Lab Sample (<1 kg) | Still requires EPA license if classified as ODS. Check if de minimis applies (usually NO for ODS). |
| Mixed Solvent (e.g., with Hexane) | If methyl chloroform >1%, still subject to ODS rules. Declare total concentration. |
| Expiry of EPA License | Renew before shipment. Expired license = seizure. |
| Alternative Solvent Available? | Consider Chloroform (HS 2903.13.00) or Dichloromethane (HS 2903.12.00), which have less restrictive ODS controls (though still regulated). |
π V. Global Market Comparison (2026)
| Country/Region | Recommended HS Code | Tariff | Key Regulatory Requirement |
|---|---|---|---|
| πΊπΈ US | 3824.99.50.00 |
0% | EPA Import License Required |
| π¨π³ China | 3824.99.50.00 |
0% | Environmental Protection Tax + Import License |
| πͺπΊ EU | 3824.99.50.00 |
0% | EU ODS Regulation + Notification Required |
| π―π΅ Japan | 3824.99.50.00 |
0% | MOE Approval for ODS |
| π¬π§ UK | 3824.99.50.00 |
0% | Environment Agency Permit |
π Conclusion:
- Tariff is 0% globally for this HS code.
- Regulatory barrier is the HIGHEST cost.
- US, EU, and China all require specific EPA/MOE permits for Methyl Chloroform.
- Do not attempt to smuggle or misdeclare. Penalties are severe (fines + imprisonment).
π VI. Common Errors & Pitfall Guide (Lessons Learned)
β Error 1: Declaring as "Pure Chemical" without EPA License
π Consequence: Seizure and Destruction of goods + $10,000+ fines per violation.
β Error 2: Using "Trichloroethylene" or "Chloroform" as description
π Consequence: Customs delay because the chemical name doesn't match the HS code or SDS.
β Error 3: Ignoring "Stabilizers" in composition
π Consequence: If stabilizers are present, it may be classified as a mixture (3824), not a pure chemical (2903). Misclassification leads to back taxes + penalties.
β Error 4: Assuming "Lab Reagent" = Exempt from ODS Rules
π Consequence: NO exemption for ODS. Even lab use requires EPA quota allocation.
β Correct Practice:
"1,1,1-Trichloroethane (Methyl Chloroform), Reagent Grade, Stabilized, for Molecular Biology Research, EPA License No. [12345], HS Code: 3824.99.50.00"
π― VII. Conclusion: Compliance is Key
π― Remember:
πΉ "0% Tariff β 0% Risk"
πΉ "Methyl Chloroform is an ODS"
πΉ "Get EPA License BEFORE Shipment"
π Pro Tip:
- Consider switching to Chloroform (HS 2903.13.00) or Dichloromethane (HS 2903.12.00) if possible. They are less restricted and easier to import.
- If you must use Methyl Chloroform, partner with a licensed customs broker who specializes in chemical imports.
π£ Immediate Action:
π Contact EPA for Import License Application
π Prepare SDS, CoA, and Invoice with clear EPA License Number
π Ensure your customs broker is pre-notified of ODS content
β¨ Professional Clearance Starts with Compliance!
πΌ Your Chemical Imports, Safely Navigated!
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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) β Broad category of goods (e.g., Chapter 84: Machinery and Mechanical Appliances)
- Heading (4 digits) β More specific grouping within the chapter
- Subheading (6 digits) β Internationally standardized breakdown, used by all WCO member countries
- National subdivisions (8-10 digits) β 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 β The standard duty rate applied to WTO members
- General rate β Applied to countries without trade agreements
- Trade remedy duties β 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.