21 C.F.R. § 1310.13
Exemption of chemical mixtures; application.
Cite as 21 C.F.R. § 1310.13 (2026)
(a) The Administrator may, by publication of a Final Rule in the
Federal Register,
exempt from the application of all or any part of the Act a chemical mixture consisting of two or more chemical components, at least one of which is not a List I or List II chemical, if:
(1) The mixture is formulated in such a way that it cannot be easily used in the illicit production of a controlled substance; and
(2) The listed chemical or chemicals contained in the chemical mixture cannot be readily recovered.
(b) Any manufacturer seeking an exemption for a chemical mixture, not exempt under § 1310.12, from the application of all or any part of the Act, may apply to the Drug and Chemical Evaluation Section, Diversion Control Division, Drug Enforcement Administration. See the Table of DEA Mailing Addresses in § 1321.01 of this chapter for the current mailing address.
(c) An application for exemption under this section shall contain the following information:
(1) The name, address, and registration number, if any, of the applicant;
(2) The date of the application;
(3) The exact trade name(s) of the applicant's chemical mixture and:
(i) If the applicant formulates or manufactures the chemical mixture for other entities, the exact trade names of the chemical mixtures and the names of the entities for which the chemical mixtures were prepared; and
(ii) If a group of mixtures (e.g. formulations having identical function and containing the same listed chemical(s)), the information required in paragraph (c)(3)(i) of this section and a brief narrative of their use.
(4) (i) The complete qualitative and quantitative composition of the chemical mixture (including all listed and all non-listed chemicals); or
(ii) If a group of mixtures, the concentration range for the listed chemical and a listing of all non-listed chemicals with respective concentration ranges.
(5) (i) The chemical and physical properties of the mixture and how they differ from the properties of the listed chemical or chemicals; and
(ii) If a group of mixtures, how the group's properties differ from the properties of the listed chemical.
(6) A statement that the applicant believes justifies an exemption for the chemical mixture or group of mixtures. The statement must explain how the chemical mixture(s) meets the exemption criteria set forth in paragraph (a) of this section.
(7) A statement that the applicant accepts the right of the Administrator to terminate exemption from regulation for the chemical mixture(s) granted exemption under this section.
(8) The identification of any information on the application that is considered by the applicant to be a trade secret or confidential and entitled to protection under U.S. laws restricting the public disclosure of such information.
(d) The Administrator may require the applicant to submit such additional documents or written statements of fact relevant to the application that he deems necessary for determining if the application should be granted.
(e) Within a reasonable period of time after the receipt of an application for an exemption under this section, the Administrator will notify the applicant in writing of the acceptance or rejection of the application for filing. If the application is not accepted for filing, an explanation will be provided. The Administrator is not required to accept an application if any information required pursuant to paragraph (c) of this section or requested pursuant to paragraph (d) of this section is lacking or not readily understood. The applicant may, however, amend the application to meet the requirements of paragraphs (c) and (d) of this section. If the exemption is subsequently granted, the applicant shall again be notified in writing and the Administrator shall issue, and publish in the
Federal Register,
an order on the application. This order shall specify the date on which it shall take effect. The Administrator shall permit any interested person to file written comments on or objections to the order. If any comments or objections raise significant issues regarding any findings of fact or conclusions of law upon which the order is based, the Administrator may suspend the effectiveness of the order until he has reconsidered the application in light of the comments and objections filed. Thereafter, the Administrator shall reinstate, terminate, or amend the original order as deemed appropriate.
(f) The Administrator may, at any time, terminate or modify an exemption for any product pursuant to paragraph (e) of this section. In terminating or modifying an exemption, the Administrator shall issue, and publish in the
Federal Register,
notification of the removal of an exempt product or group of exempt products for which evidence of diversion has been found. This order shall specify the date on which the termination of exemption shall take effect. The Administrator shall permit any interested party to file written comments on or objections to the order within 60 days of the date of publication of the order in the
Federal Register.
If any such comments or objections raise significant issues regarding any finding of fact or conclusion of law upon which the order is based, the Administrator may suspend the effectiveness of the order until he has reconsidered the order in light of comments and objections filed. Thereafter, the Administrator shall reinstate, terminate, or amend the original order as determined appropriate.
(g) A manufacturer of an exempted chemical mixture shall notify DEA in writing, of any change in the quantitative or qualitative composition of a chemical mixture that has been granted an exemption by application. Changes include those greater than the range of concentration given in the application or that remove non-listed chemical(s) given in the application as part of the formulation. A new application will be required only if reformulation results in a new product having a different commercial application or can no longer be defined as part of a group of exempted chemicals. DEA must be notified of reformulation at least 30 days in advance of marketing the reformulated mixture. For a change in name or other designation, code, or any identifier, a written notification is required. DEA must be notified of any changes at least 60 days in advance of the effective date for the change.
(h) Each manufacturer seeking exemption must apply for such an exemption. A formulation granted exemption by publication in the
Federal Register
will not be exempted for all manufacturers.
(i) The following chemical mixtures, in the form and quantity listed in the application submitted (indicated as the “date”) are designated as exempt chemical mixtures for the purposes set forth in this section and are exempted by the Administrator from application of Sections 302, 303, 310, 1007, 1008, and 1018 of the Act (21 U.S.C. 822, 823, 830, 957, 958, and 971):
Table 1 to Paragraph (
i
)—Exempt Chemical Mixtures
Manufacturer
Product name
1
Form
Date
Cerilliant Corporation
1R,2S(-)-Ephedrine hydrochloride 1.0 mg/ml as free base in one of: 1,2-dimethoxyethane, acetonitrile, acetonitrile: water (≥50% acetonitrile), dimethylformamide, ethylene glycol, isopropanol, methanol, methanol/water (50:50), methanol/dimethyl sulfoxide (80:20), methylene chloride, or tetrahydrofuran
Liquid
8/2/2007
Cerilliant Corporation
1S,2R(+)-Ephedrine-D
3
hydrochloride 0.1 mg/ml as free base in one of: 1,2-dimethoxyethane, acetonitrile, acetonitrile: water (≥50% acetonitrile), dimethylformamide, ethylene glycol, isopropanol, methanol, methanol/water (50:50), methanol/dimethyl sulfoxide (80:20), methylene chloride, or tetrahydrofuran
Liquid
8/2/2007
Cerilliant Corporation
1S,2R(+)-Ephedrine-D
3
hydrochloride 1.0 mg/ml as free base in one of: 1,2-dimethoxyethane, acetonitrile, acetonitrile: water (≥50% acetonitrile), dimethylformamide, ethylene glycol, isopropanol, methanol, methanol/water (50:50), methanol/dimethyl sulfoxide (80:20), methylene chloride, or tetrahydrofuran
Liquid
8/2/2007
Cerilliant Corporation
1S,2R(+)-Ephedrine hydrochloride 1.0 mg/ml as free base in one of: 1,2-dimethoxyethane, acetonitrile, acetonitrile: water (≥50% acetonitrile), dimethylformamide, ethylene glycol, isopropanol, methanol, methanol/water (50:50), methanol/dimethyl sulfoxide (80:20), methylene chloride, or tetrahydrofuran
Liquid
8/2/2007
Cerilliant Corporation
Pseudoephedrine-D
3
hydrochloride 0.1 mg/ml as free base in one of: 1,2-dimethoxyethane, acetonitrile, acetonitrile: water (≥50% acetonitrile), dimethylformamide, ethylene glycol, isopropanol, methanol, methanol/water (50:50), methanol/dimethyl sulfoxide (80:20), methylene chloride, or tetrahydrofuran
Liquid
8/2/2007
Cerilliant Corporation
R,R(-)-Pseudoephedrine 1.0 mg/ml as free base in one of: 1,2-dimethoxyethane, acetonitrile, acetonitrile: water (≥50% acetonitrile), dimethylformamide, ethylene glycol, isopropanol, methanol, methanol/water (50:50), methanol/dimethyl sulfoxide (80:20) methylene chloride, or tetrahydrofuran
Liquid
8/2/2007
Cerilliant Corporation
S,S(+)-Pseudoephedrine 1.0 mg/ml as free base in one of: 1,2-dimethoxyethane, acetonitrile, acetonitrile: water (≥50% acetonitrile), dimethylformamide, ethylene glycol, isopropanol, methanol, methanol/water (50:50), methanol/dimethyl sulfoxide (80:20), methylene chloride, or tetrahydrofuran
Liquid
8/2/2007
E.I. DuPont deNemours & Co
RC-5156
Liquid
4/22/2005
E.I. DuPont deNemours & Co
VH-6037
Liquid
4/22/2005
GFS Chemicals
WaterMark® Karl-Fisher Reagent, Pyridine-Free Single Solution, 5 mg/ml
Liquid
11/26/2018
GFS Chemicals
WaterMark® Karl-Fisher Reagent, 5 mg/ml Single Solution NON-HAZ
Liquid
11/26/2018
GFS Chemicals
WaterMark® Karl-Fisher Reagent, Pyridine-Free Single Solution, 2 mg/ml
Liquid
11/26/2018
GFS Chemicals
WaterMark® Karl-Fisher Reagent, 2 mg/ml Single Solution NON-HAZ
Liquid
11/26/2018
GFS Chemicals
WaterMark® Karl-Fisher Reagent, 5 mg/ml, Stabilized, Pyridine-Based
Liquid
11/26/2018
Dr. Haces, L.L.C
PodoPhylis, Podiatric Insole
Polyurethane Iodine Insole
12/15/2021
Hawthorne Products, Inc
Sole Pack Hoof Dressing
Paste
8/14/2007
Hawthorne Products, Inc
Sole Pack Hoof Packing
Paste
8/14/2007
Lord Corporation
Chemlok TS701-52
Liquid
05/03/2018
Lord Corporation
Chemlok TS701-53
Liquid
05/03/2018
Mitsubishi Chemical Corporation
Aquamicron AKX
Liquid
04/08/2021
Mitsubishi Chemical Corporation
Aquamicron AS
Liquid
04/08/2021
Mitsubishi Chemical Corporation
Aquamicron Titrant SS 1 mg
Liquid
04/08/2021
Mitsubishi Chemical Corporation
Aquamicron Titrant SS 3 mg
Liquid
04/08/2021
Mitsubishi Chemical Corporation
Aquamicron Titrant SS 10 mg
Liquid
04/08/2021
Mitsubishi Chemical Corporation
Aquamicron Titrant SS-Z 1 mg
Liquid
09/01/2020
Mitsubishi Chemical Corporation
Aquamicron Titrant SS-Z 3 mg
Liquid
09/01/2020
Mitsubishi Chemical Corporation
Aquamicron Titrant SS-Z 5 mg
Liquid
04/08/2021
Quality Assurance Service Corporation
10 to 1000 nanograms per milliliter of ephedrine in blood, serum, or urine
Liquid
9/26/2007
Quality Assurance Service Corporation
10 to 1000 nanograms per milliliter of pseudoephedrine in blood, serum, or urine
Liquid
9/26/2007
Quality Assurance Service Corporation
10 to 1000 nanograms per milliliter of phenylpropanolamine in blood, serum, or urine
Liquid
9/26/2007
Reichhold, Inc
Beckosol® 12021-00 AA-200, IA-441, P531-T
Liquid
5/05/2005
Reichhold, Inc
Urotuf® L06-30S, F78-50T
Liquid
5/05/2005
Reichhold, Inc
Beckosol AA-220
Liquid
6/14/2005
Sigma-Aldrich
Hydranal®-Composite 1
Liquid
5/29/2013
Sigma-Aldrich
Hydranal®-Composite 2
Liquid
5/29/2013
Sigma-Aldrich
Hydranal®-Composite 5K
Liquid
5/29/2013
Sigma-Aldrich
Hydranal®-Composite 5
Liquid
5/29/2013
Standard Homeopathic Co
Baby Cough Syrup
Liquid
9/28/2012
Standard Homeopathic Co
Defend Cough & Cold Night
Liquid
9/28/2012
Standard Homeopathic Co
Defend Cough & Cold
Liquid
9/28/2012
Standard Homeopathic Co
Diarrex
Liquid
9/28/2012
Waterbury Companies, Inc
Waterbury 332500
Liquid
4/11/2005
Waterbury Companies, Inc
Waterbury 332762
Liquid
4/11/2005
Waterbury Companies, Inc
Waterbury 332400
Liquid
4/11/2005
Waterbury Companies, Inc
Waterbury 346201
Liquid
4/11/2005
1
Designate product line if a group.
[68 FR 23204, May 1, 2003, as amended at 75 FR 10681, Mar. 9, 2010; 75 FR 53869, Sept. 2, 2010; 76 FR 31830, June 2, 2011; 81 FR 97025, Dec. 30, 2016; 85 FR 4586, Jan. 27, 2020; 88 FR 72682, Oct. 23, 2023]
- Cross-references to the US Code
- 21:822
- Cross-references to the CFR
- 1310.121321.01