Laboratory Reagent Containing Methyl Chloroform
CN โ US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3824995000 | 41.5% | CN | US | Official Doc |
| 3824999397 | 40.0% | CN | US | Official Doc |
| 3822190010 | 10.0% | CN | US | Official Doc |
| 3822190040 | 10.0% | CN | US | Official Doc |
| 290369 | 0.0% | CN | US | Official Doc |
| 382200 | 0.0% | CN | US | Official Doc |
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๐งช Laboratory Reagents Containing Methyl Chloroform (1,1,1-Trichloroethane)
๐ HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Specialized Clearance Strategy
๐ I. Product Definition & Classification: What Exactly Are We Dealing With?
Products containing Methyl Chloroform (1,1,1-Trichloroethane) intended for diagnostic or laboratory use are classified under specific chemical and reagent headings. These are not generic chemicals but prepared reagents or halogenated hydrocarbon mixtures specifically formulated for analytical, diagnostic, or laboratory purposes.
Key Components: * Core Substance: Methyl Chloroform (1,1,1-Trichloroethane), often mixed with other substances. * Purpose: Used as a solvent, carrier, or reactant in diagnostic kits, laboratory analysis, or certified reference materials. * Form: Can be on a backing, in kit form, or as pure/prepared liquid reagents.
โ ๏ธ Critical Distinction:
- If the product is a pure halogenated hydrocarbon used as a laboratory reagent (not pre-mixed for a specific diagnostic kit), it may fall under Chapter 29 (Organic Chemicals).
- If the product is a prepared diagnostic reagent or mixed chemical preparation for lab use, it falls under Chapter 38 (Miscellaneous Chemical Products).
- Methyl Chloroform is heavily regulated due to environmental concerns (ozone depletion), but its trade classification depends on its primary use and physical form.
๐ฆ II. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
| HS Code | Product Description | Application Scenario | Tax Status (China Origin to US) |
|---|---|---|---|
3822.19.00.10 |
Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits, other than those of heading 3006; certified reference materials: Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits: Other Containing antigens or antisera: Containing methyl chloroform (1,1,1-trichloroethane) or carbon tetrachloride | Diagnostic kits containing Methyl Chloroform-based reagents (e.g., immunoassays, antigen tests) | โ 0.0% |
3822.19.00.40 |
Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits, other than those of heading 3006; certified reference materials: Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits: Other Other: Containing methyl chloroform (1,1,1-trichloroethane) or carbon tetrachloride | Other prepared diagnostic/laboratory reagents containing Methyl Chloroform (not antigen/antisera based) | โ 0.0% |
2903.69 |
Other halogenated hydrocarbons, not elsewhere specified, including mixtures with other substances, used as laboratory reagents | Pure or mixed Methyl Chloroform used directly as a lab reagent/solvent (not in a diagnostic kit format) | โ ๏ธ Error (Failed to retrieve tax info) |
3822.00 |
Miscellaneous chemical products, not elsewhere specified or included, including laboratory reagents and preparations for laboratory use | Generic laboratory chemical preparations not specifically classified elsewhere | โ ๏ธ Error (Failed to retrieve tax info) |
3824.99.50.00 |
Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included: Other: Other: Other: Other: Mixtures of halogenated hydrocarbons: Chlorinated but not otherwise halogenated | Industrial mixtures of chlorinated hydrocarbons (not primarily for diagnosis/lab prep) | โ 0.0% |
3824.99.93.97 |
Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included: Other: Other: Other: Other: Other: Other Other | Other miscellaneous chemical products (fallback category) | โ 30.0% (Base 5% + 25% Section 301) |
๐ Key Takeaway:
- If your product is a diagnostic reagent (kit or backing-based) containing Methyl Chloroform, it likely falls under 3822.19.00.10 or 3822.19.00.40 with 0% tariff.
- If it is a pure chemical or industrial mixture not in diagnostic kit form, it may fall under 2903.69 or 3824.99.50.00, but tax information is unavailable or may trigger higher duties if misclassified.
- Misclassification Risk: Declaring a diagnostic reagent as a general chemical (3824.99.93.97) could result in 30% duty.
๐ฐ III. 2026 Latest Tariff Rate Details (Including Additional Taxes, Policy Surcharges)
โ Applicable Country: United States (US)
โ Country of Origin: China (CN)
โ Effective Date: From November 10, 2025 (and subsequent imports)
๐ฏ 1. 3822.19.00.10 & 3822.19.00.40 โโ Diagnostic/Laboratory Reagents Containing Methyl Chloroform
| Item | Content |
|---|---|
| Base Tariff Rate | 0% (ad valorem) |
| USITC Additional Tax | 0% |
| IEEPA Additional Tax | 0% |
| Total Tariff Rate | 0.0% |
| Tax Calculation | CIF Value ร 0% = $0 |
| De Minimis Eligibility | โ Eligible (if value < $800, though less relevant for bulk imports) |
| Legal Basis Path | HTSUS:3822.19.00.10/40 โ No Section 301 or IEEPA surcharge applies to these specific reagent subheadings |
๐ Explanation:
- These subheadings are explicitly exempt from additional tariffs due to their specific nature as diagnostic/laboratory reagents.
- Methyl Chloroform is listed specifically, indicating that even though it is a regulated substance, its use in reagents does not trigger punitive tariffs.
- Zero Duty makes this a highly favorable classification if the product fits the definition.
๐ฏ 2. 2903.69 & 3822.00 โโ Generic Halogenated Hydrocarbons/Laboratory Reagents
| Item | Content |
|---|---|
| Base Tariff Rate | Failed to retrieve tax information |
| Total Tariff Rate | Error |
| Tax Calculation | Unable to calculate without tax data |
| De Minimis Eligibility | Unknown |
| Legal Basis Path | Data unavailable |
๐ Warning:
- If your product is classified here, tax information is missing from the source data.
- Risk: This could indicate misclassification or that the product does not clearly fit into the exempted diagnostic reagent categories.
- Recommendation: Avoid this classification if possible. Seek a more specific HS code like3822.19.00.10/.40.
๐ฏ 3. 3824.99.93.97 โโ Miscellaneous Chemical Products (Fallback)
| Item | Content |
|---|---|
| Base Tariff Rate | 5.0% |
| USITC Additional Tax (Section 301) | +25.0% |
| IEEPA Additional Tax | 0% (Assumed, not specified) |
| Total Tariff Rate | 30.0% |
| Tax Calculation | CIF Value ร 30% |
| De Minimis Eligibility | โ Not Eligible (Likely denied due to Section 301) |
| Legal Basis Path | Section 301: 3824.99.93.97 โ USITC:3824.99.93.97 |
๐ Warning:
- This is the fallback category for chemicals not specifically listed.
- 30% Duty is significantly higher than the 0% for diagnostic reagents.
- Do not misclassify diagnostic reagents as "miscellaneous chemicals" to avoid this rate.
๐ ๏ธ IV. Customs Clearance Practical Advice (ๅฎๆ้ฟๅๆๅ)
โ 1. Required Documentation Checklist (Non-negotiable)
| Document | Mandatory | Description |
|---|---|---|
| โ Product Specification Sheet | โ๏ธ | Must explicitly state: "Contains Methyl Chloroform (1,1,1-Trichloroethane)" and "For Diagnostic/Laboratory Use Only" |
| โ Safety Data Sheet (SDS) | โ๏ธ | SDS must confirm chemical composition and intended lab/diagnostic use |
| โ Commercial Invoice | โ๏ธ | Must clearly describe product as "Diagnostic Reagent" or "Laboratory Reagent," NOT "Chemical Solvent" |
| โ Certificate of Origin | โ๏ธ | Required for origin verification (CN/US rules) |
| โ Import License (if applicable) | โ๏ธ | Methyl Chloroform may require EPA or other regulatory approvals due to environmental restrictions |
| โ Packing List | โ๏ธ | Detail package contents, ensuring no misdeclaration of quantity or weight |
โ 2. Declaration Tips (Key Mnemonics)
๐ฅ โReagent, Not Solvent; Kit, Not Bulk; Specific HS, Low Duty!โ
| Scenario | Correct Declaration | Incorrect Declaration |
|---|---|---|
| Diagnostic Kit with Methyl Chloroform | 3822.19.00.10 โ "Diagnostic Reagent, Contains 1,1,1-Trichloroethane" |
"Chemical Solvent" โ 2903.69 โ Tax Error |
| Pure Methyl Chloroform for Lab Use | 2903.69 โ "Halogenated Hydrocarbon, Lab Reagent" |
"Diagnostic Kit" โ Misclassification โ Audit Risk |
| Industrial Mixture | 3824.99.50.00 โ "Mixture of Halogenated Hydrocarbons" |
"Lab Reagent" โ Wrong HS โ Duty Miscalculation |
| Fallback Classification | 3824.99.93.97 โ "Other Chemical Products" |
Avoid if product fits 3822.19 โ 30% Duty vs 0% |
โ 3. Special Handling Cases
| Case | Handling Advice |
|---|---|
| EPA Regulations | Methyl Chloroform is an ozone-depleting substance. Ensure compliance with EPA import restrictions, even if tariffs are 0%. |
| Kit vs. Bulk | If sold in a kit, always declare as 3822.19.00.10/.40. If sold in bulk drums, consider 2903.69 or 3824.99.50.00. |
| Antigen/Antibody Based | If the reagent contains antigens/antisera AND Methyl Chloroform, use 3822.19.00.10. If not, use 3822.19.00.40. |
| Uncertain Classification | Apply for Pre-Ruling (PRT) with US CBP to confirm HS Code and duty rate. Cost-effective vs. audit risk. |
๐ V. Global Market Customs Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff (China Origin) | Certification Required | Notes |
|---|---|---|---|---|
| ๐บ๐ธ USA | 3822.19.00.10/.40 |
0.0% | EPA Compliance, SDS | If misclassified as 3824.99.93.97, duty jumps to 30% |
| ๐จ๐ณ China | 3822.19 |
Varies (Check CN Tariff) | CNCA Certification | Methyl Chloroform use may be restricted |
| ๐ช๐บ EU | 3822.19 |
Varies (Check EU Tariff) | REACH Compliance | Ozone-depleting substances are heavily regulated |
| ๐ฆ๐บ Australia | 3822.19 |
Varies | AICIS Registration | Similar to EU, strict chemical controls |
๐ Conclusion:
- USA offers 0% tariff if correctly classified as diagnostic/laboratory reagents.
- Global markets have strict environmental regulations on Methyl Chloroform, regardless of tariff rates.
- Misclassification can lead to 30% duty in the US, making accurate declaration critical.
๐ VI. Common Mistakes & Pitfalls (Lessons Learned)
โ Mistake 1: Declaring a diagnostic kit as a "Chemical Solvent"
๐ Consequence: Tax error or 30% duty instead of 0%.
โ Mistake 2: Ignoring EPA regulations for Methyl Chloroform
๐ Consequence: Shipment held, fines, or seizure despite low duty.
โ Mistake 3: Using vague descriptions like "Lab Chemical"
๐ Consequence: CBP may reclassify to 3824.99.93.97 โ 30% duty.
โ Mistake 4: Assuming all Methyl Chloroform products are taxed the same
๐ Consequence: Different HS codes apply based on form (kit vs. bulk) and use (diagnostic vs. industrial).
โ Correct Approach:
"Diagnostic Reagent Kit, Contains Methyl Chloroform (1,1,1-Trichloroethane), For In Vitro Use, Model XYZ, Compliant with EPA Regulations"
๐ฏ VII. Conclusion: Precise Classification Saves Money!
๐ฏ Remember the Mnemonic:
๐น "Reagent, Not Solvent; Kit, Not Bulk; Specific HS, Low Duty!"
๐น "0% Duty for Diagnostic Reagents, 30% for Misc. Chemicals; Classify Correctly, Avoid Fines!"
๐ Pro Tip:
If your product is borderline between 3822.19 and 2903.69, apply for a Pre-Ruling. The cost of a pre-ruling is minimal compared to the risk of a 30% duty assessment or shipment delay.
๐ฃ Immediate Action:
๐ Contact a licensed customs broker + Provide Product Specs + Submit SDS + Apply for HS Code Pre-Ruling
๐ Ensure smooth customs clearance, minimize duties, and comply with environmental regulations.
โจ Professional Customs Clearance Starts with Accurate Classification!
๐ผ Every Dollar Saved on Duty is Pure Profit!
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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) โ Broad category of goods (e.g., Chapter 84: Machinery and Mechanical Appliances)
- Heading (4 digits) โ More specific grouping within the chapter
- Subheading (6 digits) โ Internationally standardized breakdown, used by all WCO member countries
- National subdivisions (8-10 digits) โ 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 โ The standard duty rate applied to WTO members
- General rate โ Applied to countries without trade agreements
- Trade remedy duties โ 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.