ECCN reference · Category 1: Special materials and related equipment, chemicals, microorganisms and toxins
ECCN 1C350
Chemicals that may be used as precursors for toxic chemical agents
Materials. Reasons for control: CB (Chemical and biological weapons), CW (Chemical Weapons Convention), AT (Anti-terrorism).
Does 1C350 need a license to your country?
Enter the full classification (for example 1C350.b.1) and a destination. The check reads the Country Chart, the end-use and embargo rules, and shows the rule and source behind the answer.
License requirements
Each control below comes from the entry’s License Requirements table. Where it names a Country Chart column, the countries with an X in that column need a license for the items the control covers, unless a License Exception applies.
- CB (Chemical and biological weapons): CB applies to entire entry CB Column 2.
Country Chart column CB2: a license is needed to 154 countries with an X
Afghanistan, Albania, Algeria, Andorra, Angola, Antigua and Barbuda, Armenia, Aruba, Azerbaijan, Bahamas, The, Bahrain, Bangladesh, Barbados, Belarus, Belize, Benin, Bhutan, Bolivia, Bosnia and Herzegovina, Botswana, Brazil, Brunei, Burkina Faso, Burma, Burundi, Cambodia, Cameroon, Cape Verde, Central African Republic, Chad, Chile, China, Colombia, Comoros, Congo (Democratic Republic of the), Congo (Republic of the), Costa Rica, Cote d'Ivoire, Curaçao, Djibouti, Dominica, Dominican Republic, Ecuador, Egypt, El Salvador, Equatorial Guinea, Eritrea, Eswatini, Ethiopia, Fiji, Gabon, Gambia, The, Georgia, Ghana, Grenada, Guatemala, Guinea, Guinea-Bissau, Guyana, Haiti, Honduras, Indonesia, Iraq, Israel, Jamaica, Jordan, Kazakhstan, Kenya, Kiribati, Kosovo, Kuwait, Kyrgyzstan, Laos, Lebanon, Lesotho, Liberia, Libya, Macau, Madagascar, Malawi, Malaysia, Maldives, Mali, Marshall Islands, Mauritania, Mauritius, Micronesia (Federated State of), Moldova, Monaco, Mongolia, Montenegro, Morocco, Mozambique, Namibia, Nauru, Nepal, Nicaragua, Niger, Nigeria, North Macedonia, Oman, Pakistan, Palau, Panama, Papua New Guinea, Paraguay, Peru, Philippines, Qatar, Russia, Rwanda, Samoa, San Marino, Sao Tome and Principe, Saudi Arabia, Senegal, Serbia, Seychelles, Sierra Leone, Singapore, Sint Maarten (the Dutch two-fifths of the island of Saint Martin), Solomon Islands, Somalia, South Africa, South Sudan, Republic of, Sri Lanka, St. Kitts and Nevis, St. Lucia, St. Vincent and the Grenadines, Sudan, Suriname, Taiwan, Tajikistan, Tanzania, Thailand, Timor-Leste, Togo, Tonga, Trinidad and Tobago, Tunisia, Turkmenistan, Tuvalu, Uganda, United Arab Emirates, Uruguay, Uzbekistan, Vanuatu, Vatican City, Venezuela, Vietnam, Western Sahara, Yemen, Zambia, Zimbabwe.
- CW (Chemical Weapons Convention): CW applies to 1C350.b and .c. The Commerce Country Chart is not designed to determine licensing requirements for items controlled for CW reasons. A license is required, for CW reasons, to export or reexport Schedule 2 chemicals and mixtures identified in 1C350.b to States not Party to the CWC (destinations not listed in Supplement No. 2 to part 745 of the EAR). A license is required, for CW reasons, to export Schedule 3 chemicals and mixtures identified in 1C350.c to States not Party to the CWC, unless an End-Use Certificate issued by the government of the importing country has been obtained by the exporter prior to export. A license is required, for CW reasons, to reexport Schedule 3 chemicals and mixtures identified in 1C350.c from a State not Party to the CWC to any other State not Party to the CWC. (See § 742.18 of the EAR for license requirements and policies for toxic and precursor chemicals controlled for CW reasons. See § 745.2 of the EAR for End-Use Certificate requirements that apply to exports of Schedule 3 chemicals to countries not listed in Supplement No. 2 to part 745 of the EAR.). CW applies to 1C350.b and .c. The Commerce Country Chart is not designed to determine licensing requirements for items controlled for CW reasons. A license is required, for CW reasons, to export or reexport Schedule 2 chemicals and mixtures identified in 1C350.b to States not Party to the CWC (destinations not listed in Supplement No. 2 to part 745 of the EAR). A license is required, for CW reasons, to export Schedule 3 chemicals and mixtures identified in 1C350.c to States not Party to the CWC, unless an End-Use Certificate issued by the government of the importing country has been obtained by the exporter prior to export. A license is required, for CW reasons, to reexport Schedule 3 chemicals and mixtures identified in 1C350.c from a State not Party to the CWC to any other State not Party to the CWC. (See § 742.18 of the EAR for license requirements and policies for toxic and precursor chemicals controlled for CW reasons. See § 745.2 of the EAR for End-Use Certificate requirements that apply to exports of Schedule 3 chemicals to countries not listed in Supplement No. 2 to part 745 of the EAR.)
- AT (Anti-terrorism): AT applies to entire entry. The Commerce Country Chart is not designed to determine licensing requirements for items controlled for AT reasons in 1C350. A license is required, for AT reasons, to export or reexport items controlled by 1C350 to a country in Country Group E:1 of Supplement No. 1 to part 740 of the EAR. (See part 742 of the EAR for additional information on the AT controls that apply to Iran, North Korea, and Syria. See part 746 of the EAR for additional information on sanctions that apply to Iran, North Korea, and Syria.). AT applies to entire entry. The Commerce Country Chart is not designed to determine licensing requirements for items controlled for AT reasons in 1C350. A license is required, for AT reasons, to export or reexport items controlled by 1C350 to a country in Country Group E:1 of Supplement No. 1 to part 740 of the EAR. (See part 742 of the EAR for additional information on the AT controls that apply to Iran, North Korea, and Syria. See part 746 of the EAR for additional information on sanctions that apply to Iran, North Korea, and Syria.)
Not decided by the Country Chart: Covered Donetsk region of Ukraine (DNR), Covered Luhansk region of Ukraine (LNR), Crimea region of Ukraine, Cuba, Iran, Korea, North, Syria. These destinations are under embargoes or other special controls in 15 CFR Part 746, which require a license for most items whatever the chart shows. Russia and Belarus also have broad Part 746 controls in addition to the chart.
A blank on the Country Chart is not permission to ship. End-use and end-user rules (15 CFR Part 744), embargoes and sanctions (Part 746), and the parties to the transaction still apply. Use the check above for your item and country.
List-based License Exceptions
As the entry lists them. Each exception has its own conditions in 15 CFR Part 740, and § 740.2 bars or limits most of them for Russia, Belarus, Country Group D:5 and embargoed destinations, so an entry’s “Yes” does not mean it is available everywhere.
- LVS: N/A
- GBS: N/A
Items in 1C350
The controls often apply to some paragraphs only, so check the full paragraph, for example 1C350.b.
Show all 87 paragraphs
- 1C350.b Australia Group-controlled precursor chemicals also identified as Schedule 2 chemicals under the CWC, as follows, and mixtures in which at least one of the following chemicals constitutes 30 percent or more of the weight of the mixture:
- 1C350.b.1 (C.A.S. #7784-34-1) Arsenic trichloride;
- 1C350.b.2 (C.A.S. #76-93-7) Benzilic acid;
- 1C350.b.3 (C.A.S. #78-38-6) Diethyl ethylphosphonate;
- 1C350.b.4 (C.A.S. #683-08-9) Diethyl methylphosphonate;
- 1C350.b.5 (C.A.S. #15715-41-0) Diethyl methylphosphonite;
- 1C350.b.6 (C.A.S. #2404-03-7) Diethyl-N,N-dimethylphosphoroamidate;
- 1C350.b.7 (C.A.S. #41480-75-5) N,N-Diisopropylaminoethanethiol hydrochloride;
- 1C350.b.8 (C.A.S. #5842-07-9) N,N-Diisopropyl-beta-aminoethane thiol;
- 1C350.b.9 (C.A.S. #96-80-0) N,N-Diisopropyl-beta-aminoethanol;
- 1C350.b.10 (C.A.S. #96-79-7), N,N-Diisopropyl-beta-aminoethyl chloride;
- 1C350.b.11 (C.A.S. #4261-68-1) N,N-Diisopropyl-beta-aminoethyl chloride hydrochloride;
- 1C350.b.12 (C.A.S. #6163-75-3) Dimethyl ethylphosphonate;
- 1C350.b.13 (C.A.S. #756-79-6) Dimethyl methylphosphonate;
- 1C350.b.14 (C.A.S. #677-43-0) N,N-dimethylamino-phosphoryl dichloride;
- 1C350.b.15 (C.A.S. #1498-40-4) Ethyl phosphonous dichloride [Ethyl phosphinyl dichloride];
- 1C350.b.16 (C.A.S. #430-78-4) Ethyl phosphonus difluoride [Ethyl phosphinyl difluoride];
- 1C350.b.17 (C.A.S. #1066-50-8) Ethyl phosphonyl dichloride;
- 1C350.b.18 (C.A.S. #993-13-5) Methylphosphonic acid;
- 1C350.b.19 (C.A.S. #676-98-2) Methylphosphonothioic dichloride.
- 1C350.b.20 (C.A.S. #464-07-3) Pinacolyl alcohol;
- 1C350.b.21 (C.A.S. #1619-34-7) 3-Quinuclidinol;
- 1C350.b.22 (C.A.S. #111-48-8) Thiodiglycol.
- 1C350.c Australia Group-controlled precursor chemicals also identified as Schedule 3 chemicals under the CWC, as follows, and mixtures in which at least one of the following chemicals constitutes 30 percent or more of the weight of the mixture:
- 1C350.c.1 (C.A.S. #762-04-9) Diethyl phosphite;
- 1C350.c.2 (C.A.S. #868-85-9) Dimethyl phosphite (dimethyl hydrogen phosphite);
- 1C350.c.3 (C.A.S. #139-87-7) Ethyldiethanolamine;
- 1C350.c.4 (C.A.S. #10025-87-3) Phosphorus oxychloride;
- 1C350.c.5 (C.A.S. #10026-13-8) Phosphorus pentachloride;
- 1C350.c.6 (C.A.S. #7719-12-2) Phosphorus trichloride;
- 1C350.c.7 (C.A.S. #10545-99-0) Sulfur dichloride;
- 1C350.c.8 (C.A.S. #10025-67-9) Sulfur monochloride;
- 1C350.c.9 (C.A.S. #7719-09-7) Thionyl chloride;
- 1C350.c.10 (C.A.S. #102-71-6) Triethanolamine;
- 1C350.c.11 (C.A.S. #122-52-1) Triethyl phosphite;
- 1C350.c.12 (C.A.S. #121-45-9) Trimethyl phosphite.
- 1C350.d Other Australia Group-controlled precursor chemicals not also identified as Schedule 1, 2, or 3 chemicals under the CWC, as follows, and mixtures in which at least one of the following chemicals constitutes 30 percent or more of the weight of the mixture:
- 1C350.d.1 (C.A.S. #1341-49-7) Ammonium hydrogen fluoride;
- 1C350.d.2 (C.A.S. #107-07-3) 2-Chloroethanol;
- 1C350.d.3 (C.A.S. #109-89-7) Diethylamine;
- 1C350.d.4 (C.A.S. #100-37-8) N,N-Diethylaminoethanol;
- 1C350.d.5 (C.A.S. #589-57-1) Diethyl chlorophosphite;
- 1C350.d.6 (C.A.S. #298-06-6) O,O-Diethyl phosphorodithioate;
- 1C350.d.7 (C.A.S. #2465-65-8) O,O-Diethyl phosphorothioate;
- 1C350.d.8 (C.A.S. #108-18-9) Di-isopropylamine;
- 1C350.d.9 (C.A.S. #124-40-3) Dimethylamine;
- 1C350.d.10 (C.A.S. #506-59-2) Dimethylamine hydrochloride;
- 1C350.d.11 (C.A.S. #142-84-7) Dipropylamine
- 1C350.d.12 (C.A.S. #762-77-6) Ethyl chlorofluorophosphate;
- 1C350.d.13 (C.A.S. #1498-51-7) Ethyl dichlorophosphate;
- 1C350.d.14 (C.A.S. #460-52-6) Ethyl difluorophosphate;
- 1C350.d.15 (C.A.S. #7664-39-3) Hydrogen fluoride;
- 1C350.d.16 (C.A.S. #3554-74-3) 3-Hydroxyl-1-methylpiperidine;
- 1C350.d.17 (C.A.S. #76-89-1) Methyl benzilate;
- 1C350.d.18 (C.A.S. #754-01-8) Methyl chlorofluorophosphate;
- 1C350.d.19 (C.A.S. #677-24-7) Methyl dichlorophosphate;
- 1C350.d.20 (C.A.S. #22382-13-4) Methyl difluorophosphate;
- 1C350.d.21 (C.A.S. #14277-06-6) N,N Diethylacetamidine;
- 1C350.d.22 (C.A.S. #53510-30-8) N,N-Diethylbutanamidine;
- 1C350.d.23 (C.A.S. #90324-67-7) N,N-Diethylformamidine;
- 1C350.d.24 (C.A.S. #1342789-47-2) N,N Diethylisobutanamidine;
- 1C350.d.25 (C.A.S. #84764-73-8) N,N-Diethylpropanamidine;
- 1C350.d.26 (C.A.S. #1315467-17-4) N,N-Diisopropylbutanamidine;
- 1C350.d.27 (C.A.S. #857522-08-8) N,N-Diisopropylformamidine;
- 1C350.d.28 (C.A.S. #2909-14-0) N,N-Dimethylacetamidine;
- 1C350.d.29 (C.A.S. #1340437-35-5) N,N-Dimethylbutanamidine;
- 1C350.d.30 (C.A.S. #44205-42-7) N,N-Dimethylformamidine;
- 1C350.d.31 (C.A.S. #321881-25-8) N,N-Dimethylisobutanamidine;
- 1C350.d.32 (C.A.S. #56776-14-8) N,N-Dimethylpropanamidine;
- 1C350.d.33 (C.A.S. #1339586-99-0) N,N-Dipropylacetamidine;
- 1C350.d.34 C.A.S. #1342422-35-8) N,N-Dipropylbutanamidine;
- 1C350.d.35 (C.A.S. #48044-20-8) N,N-Dipropylformamidine;
- 1C350.d.36 (C.A.S. #1342700-45-1) N,N-Dipropylisobutanamidine;
- 1C350.d.37 (C.A.S. #1341496-89-6) N,N-Dipropylpropanamidine;
- 1C350.d.38 (C.A.S. #1314-80-3) Phosphorus pentasulfide;
- 1C350.d.39 (C.A.S. #75-97-8) Pinacolone;
- 1C350.d.40 (C.A.S. #7789-29-9) Potassium bifluoride;
- 1C350.d.41 (C.A.S. #151-50-8) Potassium cyanide;
- 1C350.d.42 (C.A.S. #7789-23-3) Potassium fluoride;
- 1C350.d.43 (C.A.S. #3731-38-2) 3-Quinuclidone;
- 1C350.d.44 (C.A.S. #1333-83-1) Sodium bifluoride;
- 1C350.d.45 (C.A.S. #143-33-9) Sodium cyanide;
- 1C350.d.46 (C.A.S. #7681-49-4) Sodium fluoride;
- 1C350.d.47 (C.A.S. #16893-85-9) Sodium hexafluorosilicate;
- 1C350.d.48 (C.A.S. #1313-82-2) Sodium sulfide;
- 1C350.d.49 (C.A.S. #637-39-8) Triethanolamine hydrochloride;
- 1C350.d.50 (C.A.S. #116-17-6) Tri-isopropyl phosphite.
Source
Commerce Control List, 15 CFR Part 774, Supplement No. 1 (official text on eCFR), as of August 21, 2026, 1:45AM EDT. Commerce Country Chart, Supplement No. 1 to Part 738, as of August 21, 2026, 1:45AM EDT.
This page is a preliminary reference, not legal advice, a classification ruling or permission to ship. Confirm the classification against the full official text.