How do I request a controlled substance from Clearsynth?

You can add the product to the RFQ basket or submit an enquiry. The Clearsynth team will review the requirement and respond based on the intended use and applicable compliance requirements.

Controlled Substances Reference Standards

Q: What are controlled substances?

Controlled substances are compounds that may be subject to special legal, regulatory or institutional controls. Clearsynth lists controlled substance reference standards and research materials for analytical research and regulated laboratory applications.

Q: Can controlled substances be purchased directly online?

Controlled substances listed by Clearsynth are not offered for direct online purchase. Requests are routed through an RFQ and compliance review process before availability, pricing or documentation is shared.

Compound	CAT No.	CAS No.	Category	Action
a-(Diethylamino)benzeneacetic Acid Ethyl Ester	CS-T-18072	6797-70-2	Intermediate	View
a,α-Dimethyl-4-(1-pyrrolidinyl)benzeneacetic Acid	CS-T-53692	1018660-79-1	Impurity	View
a,α-Dimethyl-4-(4-methyl-1-piperazinyl)benzeneacetic Acid	CS-T-53613	1018660-87-1	Impurity	View
a,α-Dimethyl-4-(4-morpholinyl)benzeneacetic Acid	CS-T-53614	1018614-94-2	Impurity	View
a,a,a-Trifluorotoluene	CS-T-45416	98-08-8	Fine Chemicals	View
a,a,a-Tris(hydroxymethyl)toluene	CS-T-45878	4704-99-8	Intermediate	View
a,a-Dimethyl-1-piperidineacetonitrile	CS-T-20514	2273-41-8	Intermediate	View
a-[[(Phenylmethoxy)carbonyl]amino]-1H-benzotriazole-1-acetic Acid	CS-T-39578	124676-19-3	Intermediate	View
a-Acetoxyacetic Acid	CS-T-00326	39794-77-9	Intermediate	View
a-Amino-4-hydroxy-3,5-diiodo-benzeneacetic Acid	CS-T-65519	854646-83-6	Intermediate	View
a-Azidotoluene	CS-T-04674	622-79-7	Intermediate	View
AB-005 Azepane Isomer	CS-ZB-16615	1445751-74-5	Impurity	View
AB-CHMINACA	CS-T-64026	1185887-21-1	Intermediate	View
AB-FUBINACA	CS-P-07915	1185282-01-2	Impurity	View
Abnormal Cannabidiol	CS-T-64052	22972-55-0	Fine Chemicals	View
a-Boldenone 100 mg/l MeOH	CS-O-53659	27833-18-7	Solutions	View
AB-PINACA	CS-EK-00756	1445752-09-9	API	View
AB-PINACA-d9	CS-T-94312	-	Stable Isotopes	View
a-Bromo-2,3,4,5,6-pentafluorotoluene	CS-T-08902	1765-40-8	Intermediate	View
a-Bromobenzeneacetic Acid Ethyl Ester	CS-T-07917	2882-19-1	Intermediate	View
a-Bromodiethylacetic Acid Ethyl Ester	CS-T-08155	6937-28-6	Intermediate	View
a-Bromophenylacetic acid	CS-M-57780	4870-65-9	Intermediate	View
Aceclofenac Acetic tert-butoxy Impurity	CS-O-50113	2518198-70-2	Impurity	View
Acetamidoacetone	CS-DV-03436	7737-16-8	API	View

Controlled Substance Reference Standards from Clearsynth

Clearsynth offers controlled substances, controlled substance reference standards and controlled substance analytical standards for research laboratories, pharmaceutical research, analytical testing and regulated scientific applications. The products listed on this page are routed through a compliance-first RFQ workflow.

Because controlled substances may be subject to special handling, documentation or regulatory requirements, Clearsynth does not publicly display stock, pricing or product documents for these materials. Each request is reviewed based on the organization, intended use and applicable compliance requirements before further details are shared.

Analytical Research

Controlled substance reference standards support analytical method development, identification, qualification and comparison workflows in regulated laboratory environments.

Compliance-first RFQ

Requests are handled through RFQ review so the Clearsynth team can evaluate end-use, organization details and documentation before sharing commercial information.

Product Documentation

Documents and availability details are released only after review. This helps maintain a controlled, responsible and traceable enquiry workflow.

Applications of Controlled Substance Standards

Controlled substance standards and controlled drug reference materials are commonly used in analytical research, LC-MS and GC-MS method development, impurity profiling, reference standard comparison, pharmaceutical research and laboratory testing. Clearsynth supports research-use workflows through a structured enquiry and review process.

If you are looking for a specific controlled substance, CAS number, CAT number or related analytical standard, use the search box above to search within Clearsynth’s controlled substances product listing.

Controlled Substances FAQ

What are controlled substances?

Controlled substances are compounds that may be subject to legal, regulatory or institutional controls. Clearsynth lists controlled substance reference standards and research materials for analytical research and regulated laboratory applications.

Can controlled substances be purchased directly online?

No. Controlled substances listed by Clearsynth are not offered as direct online purchases. Requests are routed through an RFQ and compliance review process.

Why is pricing not shown?

Pricing is not shown publicly because controlled products require review of the requester, organization, end-use and applicable documentation before commercial information can be shared.

How do I request a quote?

Use the RFQ button on any product row or open the product detail page and submit your requirement. The Clearsynth team will review the request and respond based on compliance requirements.

Are these products for personal use?

No. Products listed in this section are intended for research, analytical and laboratory use only, subject to review and applicable requirements.