TariffsChart
有来源支撑的基础 HTS2933.91.00

HTS 2933.91.00 基础税率：Free

商品描述: Alprazolam (INN), camazepam (INN), chlordiazepoxide (INN), clonazepam (INN), clorazepate, delorazepam (INN), diazepam (INN), estazolam (INN), ethyl loflazepate (INN), fludiazepam (INN), flunitrazepam (INN), flurazepam (INN), halazepam (INN), lorazepam (INN), lormetazepam (INN), mazindol (INN), medazepam (INN), midazolam (INN), nimetazepam (INN), nitrazepam (INN), nordazepam (INN), oxazepam (INN), pinazepam (INN), prazepam (INN), pyrovalerone (INN), temazepam (INN), tetrazepam (INN) and triazolam (INN); salts thereof

已验证来源

基础 HTS 字段已附官方来源、抓取日期和计算痕迹。页面仍仅用于规划估算和报关行复核准备。

美国进口税快速答案

HS 2933.91.00（Alprazolam (INN), camazepam (INN), chlordiazepoxide (INN), clonaz...）的来源支撑 MFN 基础税率是 Free。这不是最终申报税率；未完整验证的政策层不会被默认为 0，也不会被相加成伪总数。

HTS 编码

2933.91.00

基础 MFN 税率

Free

规划总览

已知小计：基础 Free；最终税率未解析

$29 人工检查这个 HTS 编码1 个商品和 1 条路线 · 通常 1 个工作日 · 无订阅
带入落地成本计算器

中国原产税费层级

MFN 基础税率

Free

只表示 USITC HTS 一般税率字段，不包含任何 Chapter 99 或贸易救济层。

Section 301 / Chapter 99

需要复核

不得根据商品类别或历史清单硬编码 7.5% 或 25%。必须直接绑定 USTR/HTS Chapter 99 来源、原产地、生效日与排除项。

Section 122 历史层

已结束的历史窗口

不得把已结束的临时层加入当前货件。仅在查询对应历史入境日期时按官方来源复核。

Section 232 / product-specific remedies

按品类复核

钢、铝、铜、汽车、半导体、木材及其衍生品等需要按现行附件、原产地、含量和 Chapter 99 单独复核。

AD/CVD scope

需要人工范围复核

HTS 命中只能作为风险提示；法律适用范围由命令中的书面 scope 控制。

用于计算器保存来源快照生成报关行复核资料包打开官方来源

$29/月 · 最多 10 个监控

监控商品的官方关税来源变化

来源指纹发生变化时收到邮件，并在工作区保留检索上下文和待复核记录。变化信号不替代官方或专业判断。

设置关税变化监控

这个 HS 编码是什么？

HS 2933.91.00 对应“Alprazolam (INN), camazepam (INN), chlordiazepoxide (INN), clonazepam (INN), clorazepate, delorazepam (INN), diazepam (INN), estazolam (INN), ethyl loflazepate (INN), fludiazepam (INN), flunitrazepam (INN), flurazepam (INN), halazepam (INN), lorazepam (INN), lormetazepam (INN), mazindol (INN), medazepam (INN), midazolam (INN), nimetazepam (INN), nitrazepam (INN), nordazepam (INN), oxazepam (INN), pinazepam (INN), prazepam (INN), pyrovalerone (INN), temazepam (INN), tetrazepam (INN) and triazolam (INN); salts thereof”。完整归类仍需结合材质、用途、规格和统计后缀。

商品描述

Alprazolam (INN), camazepam (INN), chlordiazepoxide (INN), clonazepam (INN), clorazepate, delorazepam (INN), diazepam (INN), estazolam (INN), ethyl loflazepate (INN), fludiazepam (INN), flunitrazepam (INN), flurazepam (INN), halazepam (INN), lorazepam (INN), lormetazepam (INN), mazindol (INN), medazepam (INN), midazolam (INN), nimetazepam (INN), nitrazepam (INN), nordazepam (INN), oxazepam (INN), pinazepam (INN), prazepam (INN), pyrovalerone (INN), temazepam (INN), tetrazepam (INN) and triazolam (INN); salts thereof

数据来源与更新时间

基础字段来源：USITC HTS revision feed，抓取日期 2026-09-07。附加层当前不发布数值。

关税层级如何叠加

  1. 1先确认完整 8 位或 10 位 HTS 编码。
  2. 2读取有来源支撑的 MFN 基础税率。
  3. 3按原产地和入境日期解析 Chapter 99 与国别政策层。
  4. 4检查 Section 232、AD/CVD、配额、豁免和贸易协定。
  5. 5仅在所有适用层都有来源链时发布最终合计。

Section 301 状态

当前页面只发布基础税率。Section 301 必须按原产地、Chapter 99、生效日期和排除项直接核验。

按原产地比较

同一个 HS 编码在不同原产地下可能产生完全不同的规划税负。下面的表格用于比较情景，不是最终申报裁定。

原产地MFNSection 301Section 122Section 232规划总览说明在计算器中比较
中国Free需要复核当前不适用按品类复核不发布未核实总数还需核对 Chapter 99、排除项、AD/CVD、配额和入境日期。在计算器中比较 →
越南Free按当前国别制度复核当前不适用按品类复核不发布未核实总数原产地变化会改变政策栈，不得沿用中国税率。在计算器中比较 →
墨西哥Free按当前国别制度复核当前不适用USMCA 与品类复核不发布未核实总数先确认 USMCA 资格，再检查产品特定措施。在计算器中比较 →

基础 HTS 信息

这一部分只展示带来源字段的基础 HTS 信息。基础税率与附加税复核分开展示，避免把未核实的组合估算当作公开结论。

基础 MFN 税率FreeExact official field

HTS 一般税率字段: Free

紧邻税率展示的说明：这里只展示基础 HTS 字段；任何附加税、Chapter 99、排除项或 AD/CVD 仍需单独复核。

计算方式

Exact official field

来源名称

USITC HTS revision feed

来源 URL

https://www.usitc.gov/2026_hts_revision_18

抓取日期

2026-09-07

生效日期

-

版本 / revision

2026-revision-18

置信状态

official-source

复核状态

Verified

可视化计算痕迹

公开页把基础 HTS、附加层和公开可见度拆开显示。虚线条表示组件可能存在，但还没有达到可公开展示的来源完整度。

基础 HTS

Exact official field

Free

Country / temporary additional-duty layer

This layer is hidden until a dated rule is directly bound to its official document, economy, HTS scope, and exclusions.

仍待复核

Section 301 / Chapter 99 layer

This layer is hidden until a dated rule is directly bound to its official document, economy, HTS scope, and exclusions.

仍待复核

公开度信号

基础字段精度

94%

精确字段

来源新鲜度

88%

在窗口内

公开可见度

22%

仍待复核

计算痕迹

  • HTS line 2933.91.00 maps to the USITC general duty field "Free".
  • The field is a single simple ad-valorem rate, so the public base rate is Free.

中国到美国复核清单

把以下项目当作人工复核清单，而不是自动裁定结果。重点包括 Chapter 99、Section 301、USTR exclusions、AD/CVD、quotas / safeguards 与 broker confirmation。

HTS code has filing-level detail to review

success

The entered code (2933.91.00) is specific enough to start a rate review, but classification still requires product facts and broker/official confirmation.

Open USITC HTS search

Product facts captured for ruling comparison

success

Use the product description when comparing material, construction, principal use, and classification rationale from rulings.

Search CBP CROSS

USITC HTS candidate record returned

success

Candidate 2933.91.00: Alprazolam (INN), camazepam (INN), chlordiazepoxide (INN), clonazepam (INN), clorazepate, delorazepam (INN), diazepam (INN), estazolam (INN), ethyl loflazepate (INN), fludiazepam (INN), flunitrazepam (INN), flurazepam (INN), halazepam (INN), lorazepam (INN), lormetazepam (INN), mazindol (INN), medazepam (INN), midazolam (INN), nimetazepam (INN), nitrazepam (INN), nordazepam (INN), oxazepam (INN), pinazepam (INN), prazepam (INN), pyrovalerone (INN), temazepam (INN), tetrazepam (INN) and triazolam (INN); salts thereof. General duty field: Free.

Open USITC HTS search

Simple general duty rate parsed for planning

success

TariffsChart can apply Free as a planning base duty rate. Still verify special rates, units, footnotes, and applicability.

China-origin trade-remedy and Chapter 99 check required

danger

For China-origin goods, verify Section 301 coverage, exclusions, IEEPA/other current trade-remedy FAQs, and any required Chapter 99 secondary classifications. The automated result does not determine coverage.

Open CBP Section 301 FAQ

AD/CVD scope cannot be determined from HTS alone

danger

Search ACCESS/AD-CVD by country, product, commodity, case number, and HTS. Scope language controls; an HTS match is only a screening signal.

Open AD/CVD Search

Related HTS codes

同一 heading / chapter 下的其他 verified HTS 详情页，可用于比较相邻编码、材料或用途差异。

第 29 章 · Organic chemicals →
2933.11.00.00基础税率: 6.5%

Phenazone (Antipyrine) and its derivatives

来源抓取: 2026-09-07

2933.19.04.00基础税率: Free

Aminomethylphenylpyrazole (Phenylmethylaminopyrazole); and 3-Methyl-1-(p-tolyl)-2-pyrazolin-5-one (p-Tolyl methyl pyrazolone)

来源抓取: 2026-09-07

2933.19.08.00基础税率: 5.8%

3-(5-Amino-3-methyl-1H-pyrazol-1-yl)- benzenesulfonic acid; Amino-J-pyrazolone; 3-Amino-1-(2,4,6-trichlorophenyl)-5- pyrazolone; 3-Carboxy-1,4-sulfophenylpyrazol-5-one; 4-Chloro-3-(3-methyl-5-oxo-2-pyrazolin-1- yl)benzenesulfonic acid; 1-(m-Chlorophenyl)-3-methyl-2-pyrazolin- 5-one;p-Chloropyrazolone; 1-(2',5'-Dichlorophenyl)-3-methyl-2- pyrazolin-5-one; 1-(o-Ethylphenyl)-3-methyl-2-pyrazolin- 5-one; 5-Imino-3-methyl-1-phenylpyrazole; 5-Imino-3-methyl-1-(m-sulfophenyl)- pyrazole; 2,4-Methylcarboxypyrazolic acid; Methylphenylpyrazolone; and Sulfinpyrazone

来源抓取: 2026-09-07

2933.19.15.00基础税率: Free

1,2-Dimethyl-3,5-diphenyl-1H-pyrazolium methyl sulfate (Difenzoquat methyl sulfate)

来源抓取: 2026-09-07

2933.19.18.00基础税率: Free

2-Chloro-5-sulfophenylmethylpyrazolone; 2,5-Dichloro-4-(3-methyl-5-oxo-2- pyrazolin-1-yl) benzenesulfonic acid; Phenyl carbethoxypyrazolone;m-Sulfaminopyrazolone (m-Sulfamido- phenyl methyl pyrazolone); and 1-(p-Sulfophenyl)-3-methyl pyrazolone

来源抓取: 2026-09-07

2933.19.23.00基础税率: 6.5%

Pesticides

来源抓取: 2026-09-07

2933.19.30基础税率: 6.5%

Photographic chemicals

来源抓取: 2026-09-07

2933.19.37.00基础税率: 6.5%

Products described in additional U.S. note 3 to section VI

来源抓取: 2026-09-07

2933.19.70.00基础税率: Free

3-Methyl-5-pyrazolone

来源抓取: 2026-09-07

2933.21.00.00基础税率: 6.5%

Hydantoin and its derivatives

来源抓取: 2026-09-07

2933.29.05.00基础税率: Free

1-[1-((4-Chloro-2-(trifluoromethyl)phenyl)- imino)-2-propoxyethyl]-1H-imidazole (Triflumizole); and Ethylene thiourea

来源抓取: 2026-09-07

2933.29.10.00基础税率: 5.8%

2-Phenylimidazole

来源抓取: 2026-09-07

Official-source openings

以下是这条路线建议打开并保存的官方来源入口。

USITC HTS lookup for 2933.91.00

official-source · 2026-09-18

Candidate HTS: 2933.91.00 Description: Alprazolam (INN), camazepam (INN), chlordiazepoxide (INN), clonazepam (INN), clorazepate, delorazepam (INN), diazepam (INN), estazolam (INN), ethyl loflazepate (INN), fludiazepam (INN), flunitrazepam (INN), flurazepam (INN), halazepam (INN), lorazepam (INN), lormetazepam (INN), mazindol (INN), medazepam (INN), midazolam (INN), nimetazepam (INN), nitrazepam (INN), nordazepam (INN), oxazepam (INN), pinazepam (INN), prazepam (INN), pyrovalerone (INN), temazepam (INN), tetrazepam (INN) and triazolam (INN); salts thereof General rate field: Free Simple ad-valorem rate parsed for planning: Free

打开官方来源

CBP CROSS rulings search for 2933.91.00

official-source · 2026-09-18

Search for binding CBP rulings involving similar merchandise. Capture ruling number, date, product facts, classification rationale, and whether the facts match this SKU. CROSS examples help frame broker questions but do not automatically classify your product.

打开官方来源

CBP Section 301 China-origin check for 2933.91.00

official-source · 2026-09-18

For China-origin goods, verify whether the HTS classification is covered by Section 301 remedies, whether any exclusion applies, and which Chapter 99 secondary classification should be reported. Do not infer coverage from the base HTS line alone.

打开官方来源

USTR Section 301 actions and exclusions for 2933.91.00

official-source · 2026-09-18

Check USTR Section 301 tariff actions, exclusion notices, and extension status. Save the specific list/exclusion evidence if a product exclusion is claimed.

打开官方来源

AD/CVD scope check for 2933.91.00

official-source · 2026-09-18

Search Commerce ACCESS/AD-CVD resources by country, product, case number, HTS number, and commodity. AD/CVD scope can be broader or narrower than an exact HTS match; ask the broker whether a scope ruling or specialist review is needed.

打开官方来源

CBP China/Hong Kong IEEPA and other remedy check for 2933.91.00

official-source · 2026-09-18

Review whether any current CBP trade-remedy FAQ, CSMS message, or Chapter 99 note applies in addition to Section 301, base duty, AD/CVD, or other measures. This is a prompt for professional review, not an automated determination.

打开官方来源