Precursor-Controlled Chemical

A carefully managed portfolio of precursor-controlled chemicals supplied under strict regulatory compliance, serving pharmaceutical synthesis, industrial manufacturing, and specialty chemical applications worldwide.

China Policy & Export Explore Products
Precursor-Controlled Chemicals
Regulatory Framework

China Precursor Chemical Policy

Understanding China's regulatory system is essential for lawful trade in precursor chemicals. Do Sender Chem ensures full compliance with all applicable laws and international conventions.

⚖ Policy Overview

China regulates precursor chemicals under the Regulations on the Administration of Precursor Chemicals (State Council Decree No. 445), effective from November 1, 2005. Updated catalog revisions apply from 2021 (Ministry of Public Security, MOFCOM, and other departments).

The system is administered jointly by the Ministry of Public Security (MPS), the Ministry of Commerce (MOFCOM), and the General Administration of Customs (GACC).

Precursor chemicals are classified into three categories based on their risk level and international control status:

Category I — Strictest Category II — Strict Category III — Monitored
☰ Three-Tier Classification
  • Category I: Acetic Anhydride, Piperidine, etc. — Production license from State Council required; strictest purchase and transport control; real-name registration.
  • Category II: Butanone (MEK), Toluene, Acetone, etc. — Provincial public security license required; sales filing and end-user verification.
  • Category III: Sulfuric Acid, Hydrochloric Acid, etc. — Record-filing system; bulk purchase reporting; customs declaration for export.
  • International Compliance: UN Convention against Illicit Traffic in Narcotic Drugs and Psychotropic Substances (1988) — China is a signatory.
  • End-Use Certificates: Required for all Category I and most Category II international transactions.
Export Process

Precursor Chemical Export Procedures

Exporting precursor chemicals from China requires coordination across licensing, customs, and international documentation. Do Sender Chem manages the entire process for our customers.

1
Verify Licenses
Both supplier and buyer must hold valid precursor chemical licenses. Do Sender verifies all counterparty qualifications before quotation.
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2
Apply for Export License
Do Sender applies to MOFCOM for an export license, submitting product details, quantity, destination, and end-use certificate from the importer.
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3
Customs Declaration
With export license approved, we complete customs declaration with GACC, providing all required documentation including hazard labels and MSDS.
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4
Post-Shipment Reporting
Within the required timeframe, we file post-export reports with MPS and MOFCOM. Complete audit trail is maintained for every shipment.

Required Export Documentation Checklist

✓ Export License (MOFCOM)
✓ End-Use Certificate (Importer)
✓ End-User Certificate (Importer)
✓ MSDS / SDS (GHS-Compliant)
✓ Certificate of Analysis (CoA)
✓ UN Packaging Certificate
✓ Pre-Export Notification (if required)
✓ Commercial Invoice & Packing List
Product Portfolio

Overview of 7 Precursor Chemicals

Explore our carefully managed portfolio of precursor-controlled chemicals. Click any product to view detailed specifications, uses, packaging, and regulatory information.

01 Class 3 · Flammable Liquid

Butanone (MEK)

CAS: 78-93-3  ·  UN: 1193

Versatile industrial solvent with excellent solvency for resins, polymers, and coatings. Widely employed in surface treatment and chemical synthesis.

Formula: C₄H₈O MW: 72.11 bp: 79.6 °C
Uses: Paints & coatings, adhesives, printing inks, chemical synthesis, surface degreasing
Packaging: 190 kg steel drums, 950 kg IBC totes, ISO tank containers
Regulation: China Category II — Provincial PSB license required; customs declaration mandatory
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02 Class 8+3 · Corrosive/Flammable

Acetic Anhydride

CAS: 108-24-7  ·  UN: 1715

Primary acetylating agent for pharmaceutical and fine chemical synthesis. Reacts vigorously with water; handled under strict moisture exclusion.

Formula: C₄H₆O₃ MW: 102.09 bp: 139.8 °C
Uses: Aspirin & paracetamol synthesis, cellulose acetate production, pesticide intermediates, fragrance esters
Packaging: 200 kg UN-certified steel drums with PTFE-lined caps, ISO tanks
Regulation: China Category I — State Council production license; real-name purchase registration; end-use certificate required
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03 Class 8 · Corrosive

Sulfuric Acid

CAS: 7664-93-9  ·  UN: 1830

The world's most produced chemical by volume. Essential for fertilizer manufacturing, mineral processing, and petroleum refining operations.

Formula: H₂SO₄ MW: 98.08 Conc.: 93%–98%
Uses: Phosphate fertilizers, metal pickling, petroleum alkylation, battery acid, wastewater pH adjustment
Packaging: 35 kg HDPE drums, 250 kg drums, 1,600 kg IBC totes, bulk ISO tanks
Regulation: China Category III — Record-filing system; bulk purchase reporting; customs declaration for export
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04 Class 3 · Flammable Liquid

Toluene

CAS: 108-88-3  ·  UN: 1294

Aromatic hydrocarbon with outstanding solvent power. A cornerstone feedstock for benzene, xylene, and polyurethane intermediates.

Formula: C₇H₈ MW: 92.14 bp: 110.6 °C
Uses: TDI & polyurethane foams, pharmaceutical synthesis, paints & thinners, adhesives, rubber processing
Packaging: 180 kg steel drums, 950 kg IBC totes, ISO tank containers, bulk vessels
Regulation: China Category II — Provincial PSB license; end-user verification; export declaration required
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05 Class 3+8 · Flammable/Corrosive

Piperidine

CAS: 110-89-4  ·  UN: 2401

Saturated six-membered nitrogen heterocycle; an indispensable building block for APIs, agrochemicals, and rubber vulcanization accelerators.

Formula: C₅H₁₁N MW: 85.15 bp: 106 °C
Uses: API intermediates (anesthetics, antipsychotics), agrochemical synthesis, rubber accelerators, corrosion inhibitors
Packaging: 170 kg UN-certified steel drums, nitrogen-blanketed, PTFE-lined closures
Regulation: China Category I — Strictest control tier; State Council license; real-name registration; mandatory end-use certificate
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06 Class 8 · Corrosive

Hydrochloric Acid

CAS: 7647-01-0  ·  UN: 1789

Aqueous hydrogen chloride solution; a fundamental industrial acid for metal finishing, chemical production, and water treatment.

Formula: HCl (aq.) MW: 36.46 Conc.: 31%–37%
Uses: Steel pickling, PVC & chlorinated organics, ion-exchange regeneration, oil well acidizing, food-grade pH control
Packaging: 25 kg / 250 kg HDPE drums, 1,200 kg IBC totes, rubber-lined ISO tanks
Regulation: China Category III — Record-filing required; bulk transaction reporting; customs declaration for export
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07 Class 3 · Flammable Liquid

Acetone

CAS: 67-64-1  ·  UN: 1090

The simplest ketone; a universal polar aprotic solvent with rapid evaporation, excellent miscibility, and low toxicity.

Formula: C₃H₆O MW: 58.08 bp: 56.1 °C
Uses: Polymer & resin solvent, pharmaceutical crystallization, cosmetic nail polish remover, laboratory cleaning, acetylene cylinder filling
Packaging: 160 kg steel drums, 950 kg IBC totes, ISO tank containers
Regulation: China Category II — Provincial PSB license; sales filing; customs export declaration mandatory
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