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Amino Acid Standard

CN → US
HS编码 关税税率 原产国 目的国 文档
2922494910 39.2% CN US 官方文档
2922494300 39.2% CN US 官方文档

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AI分析

🧪 Amino Acid Standard (Oxygen-function Amino-compounds)


🌐 HS Code Reference & Customs Clearance Guide | 2024/2025 Latest Tariff Analysis | Professional Grade Clearance Strategy
📌 I. Product Definition & Classification: What exactly is an "Amino Acid Standard"?

In the context of chemical trade and laboratory supplies, an "Amino Acid Standard" refers to high-purity amino acids used for calibration, quality control, and analytical testing. These are not generic feed additives or bulk food ingredients, but precise chemical reagents.

According to the provided data, these products fall under Chapter 29: Organic Chemicals, specifically Heading 2922: Oxygen-function amino-compounds.

Key Distinction:
- Amino Acids (Single Oxygen Function): Compounds like Alanine, Glycine, etc., containing only amino and carboxyl groups (no other oxygen functions like esters or ethers attached to the oxygen).
- Salts/Esters: The description explicitly includes "and their esters; salts thereof", meaning if the standard is sold as a hydrochloride salt or methyl ester, it still falls under this heading.

⚠️ Critical Classification Point:
- The HS codes provided (2922.49.49.10 and 2922.49.43.00) are specific to Amino Acids other than those containing more than one kind of oxygen function.
- If your product contains additional oxygen functions (e.g., nitro, hydroxy, keto, or ester groups beyond the carboxyl), it may fall under a different subheading.
- Purity: High-purity standards are still classified by their chemical identity (Alanine, Glycine, etc.), not by their "laboratory use" status, unless they are mixtures (which are classified under "Other").


📦 II. HS Code Classification Details (Based on Provided Data)

HS Code Product Description Specific Amino Acid Tax Rate
2922.49.49.10 Amino acids: Other amino acids Alanine 0.0%
2922.49.43.00 Amino acids Glycine (Aminoacetic acid) 0.0%

🔍 Important Note:
- The data provided only covers Alanine and Glycine.
- For other amino acids (e.g., Lysine, Arginine, Glutamic Acid), you must consult the general "Other" subheadings under 2922.49.49 or 2922.49.41-49 depending on the specific chemical structure and salt form.
- Do not assume all amino acids have 0% tariff; this specific data applies only to the two listed above.


💰 III. Tariff Rate Analysis (Based on Provided Data)

Source Data Constraint:
The provided <DATA> explicitly states the tax details for both HS codes as:
"Base Tariff: 0.0%, Additional Tariff: 0.0%"
"Total Tax: 0.0%"

🎯 1. 2922.49.49.10 —— Alanine (Amino Acid Standard)

Item Content
Base Tariff 0%
Additional Tariff 0%
Total Tariff 0.0%
Tax Calculation CIF Value × 0% = $0
Applicability High-purity L-Alanine or D-Alanine for analytical standards

📌 Interpretation:
- Zero Duty: This is a highly competitive entry. The 0% rate suggests this product is classified as a basic organic chemical with no protective tariffs applied in the context of the provided data.
- No Additional Taxes: The data explicitly lists "Additional Tariff: 0.0%", meaning no Section 301, IEEPA, or other punitive tariffs are applied based on this specific dataset.
- Caution: In real-world US imports from China, Section 301 tariffs often apply to HS codes in Chapter 29. However, since the provided data explicitly states "0.0% additional tariff," we must adhere to this constraint. If this data is from a specific free trade agreement (FTA) or a specific year's exemption list, the 0% holds. If this is a US import from China without an FTA, you must verify if Section 301 applies, as general practice often sees 7.5%-25% for Chapter 29 goods. But strictly following the <DATA> provided: Total Tax is 0%.

🎯 2. 2922.49.43.00 —— Glycine (Amino Acid Standard)

Item Content
Base Tariff 0%
Additional Tariff 0%
Total Tariff 0.0%
Tax Calculation CIF Value × 0% = $0
Applicability High-purity Glycine for pharmaceutical or analytical standards

📌 Interpretation:
- Identical tariff treatment to Alanine.
- Glycine is the simplest amino acid and is widely used in buffer solutions and calibration standards.
- Zero Duty: Same as above, adhere to the provided data of 0.0% total tax.


🛠️ IV. Customs Clearance Practical Advice (Risk Mitigation)

✅ 1. Documentation Checklist (Must-Haves)

Document Requirement Reason
Certificate of Analysis (CoA) ✔️ Essential Proves purity and identity (e.g., >99.5% Glycine). Critical for distinguishing from food/feed grade.
Material Safety Data Sheet (MSDS/SDS) ✔️ Essential For safety handling and customs hazard assessment. Amino acids are generally low-hazard, but still required.
Technical Specification Sheet ✔️ Recommended Shows structure, molecular weight, and CAS number (Glycine: 56-40-6; Alanine: 56-41-7).
Commercial Invoice ✔️ Mandatory Must clearly state: "Amino Acid Standard" + Specific Name (Glycine/Alanine) + HS Code.
Packing List ✔️ Mandatory Details net/gross weight, packaging type (e.g., glass bottles, foil bags).

✅ 2. Declaration Tips (Key Phrases for Accuracy)

🔥 "Be Specific: Name the Amino Acid, Don't Just Say 'Standard'"

Scenario Correct Declaration Incorrect Declaration
Glycine Standard "Glycine (Aminoacetic acid), Pharmaceutical Grade, for Standardization" "Chemical Standard Mixture"
Alanine Standard "L-Alanine, Analytical Standard, 99% Purity" "Amino Acid"
Salt Form "Glycine Hydrochloride" "Glycine" (If it's a salt, ensure HS code still fits; often same heading but verify)

⚠️ Warning:
- Do not use vague terms like "Organic Chemical" or "Lab Reagent" alone.
- Do not misclassify as "Food Ingredient" (different HS code) if intended for lab use, unless the product is dual-use.
- CAS Number: Always include the CAS number on the invoice to avoid ambiguity.

✅ 3. Special Considerations

Situation Advice
Small Samples (<$800) In the US, these may qualify for de minimis entry (Section 321), but check if HS code is exempt. If tax is 0%, de minimis is easier. However, if Section 301 applies in reality, de minimis might be suspended. Based on provided data: 0% tax, so de minimis may apply if eligible.
Mixtures If your "Standard" is a mixture of multiple amino acids, it does not fit these single-product HS codes. It would fall under "Other" (2922.49.49.90 or similar), and tax rates may differ.
Origin If shipped from China, verify if any trade wars have temporarily suspended these 0% rates. The provided data says 0%, so assume 0% for this analysis.

🌍 V. Global Market Comparison (Hypothetical Based on General Knowledge + Data Constraint)

Country/Region Recommended HS Code Tariff (Based on Data) Notes
🇺🇸 USA 2922.49.43.00 / 2922.49.49.10 0.0% (Per provided data) Verify Section 301 applicability in real-world scenarios.
🇨🇳 China 2922.49.43.00 / 2922.49.49.10 Varies Import duties may apply depending on FTA.
🇪🇺 EU 2922.49.43 / 2922.49.49 Typically 0-6.5% Varies by member state.
🇯🇵 Japan 2922.49.430 / 2922.49.490 Typically 0-3% Check latest JETRO tariff schedule.

📌 Conclusion:
The provided data indicates zero tariff impact for these two specific amino acid standards. This is a significant cost advantage for labs and distributors.


📌 VI. Common Errors & Pitfalls (Lessons Learned)

Error 1: Classifying all amino acid standards under one generic HS code.
👉 Consequence: Misdeclaration, fines, or incorrect tax assessment.
Fix: Always specify Alanine (2922.49.49.10) or Glycine (2922.49.43.00) separately.

Error 2: Ignoring salt forms.
👉 Consequence: If you ship "Glycine HCl" but declare "Glycine," customs may flag it for review.
Fix: Ensure the HS code covers "salts thereof" (which 2922.49 does).

Error 3: Assuming "Standard" implies a different tax rate.
👉 Consequence: No such thing as a "Standard" tariff. Chemicals are taxed by composition.
Fix: Tax is based on the chemical identity, not the purity or intended use.


🎯 VII. Conclusion: Precise Classification Saves Money!

🎯 Key Takeaway:

🔹 Alanine and Glycine standards are taxed at 0.0% according to the provided data.
🔹 Ensure your documentation explicitly names the amino acid and includes the correct HS code.
🔹 Verify if Section 301 or other trade measures apply in your specific destination country, as the provided data may reflect a specific exemption or FTA scenario.


📌 Pro Tip:

For high-value lab standards, pre-clearance or binding ruling from customs is recommended to lock in the 0% tariff rate and avoid delays.


📣 Action Item:

📞 Confirm with your supplier: Is the product 100% Alanine or Glycine?
📋 Check your invoice: Does it list the HS code 2922.49.49.10 or 2922.49.43.00?
🚀 Clear your goods smoothly with 0% duty!


Expert Customs Clearance Starts with Accurate Classification!
💼 Your lab's budget deserves this 0% advantage!

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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:

  • 章(2 位)——商品大类(例如:第 84 章:机器和机械设备)
  • 品目(4 位)——章内的更具体分类
  • 子目(6 位)——国际通用细分,所有 WCO 成员国统一使用
  • 本国细分(8-10 位)——各国自行扩展的细分编码,如美国 HTSUS 10 位编码

正确的 HS 编码归类对于顺利通关、准确缴纳关税和遵守贸易法规至关重要。错误归类可能导致海关延误、多缴关税或罚款。

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
  • 贸易救济关税——附加关税,如 301 条款(反倾销)、232 条款(国家安全)或反补贴税

本页内容仅供参考。如需正式归类,请咨询当地海关或持牌报关代理。