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
AB-FUBINACA metabolite 3	CS-EK-01391	1877243-60-1	Metabolite	View
Abnormal Cannabidiol	CS-T-64052	22972-55-0	Fine Chemicals	View
AB-PINACA-d9	CS-T-94312	-	Stable Isotopes	View
Acetorphine hydrochloride	CS-ED-01782	25333-78-2	API	View
Acetylcodeine	CS-CX-00047	6703-27-1	Metabolite	View
Acetylcodeine 13CD3	CS-CX-00048	6703-27-1 (Unlabeled)	Stable Isotopes	View
Acetyldihydrocodeine	CS-ED-00621	3861-72-1	Impurity	View
Acrylfentanyl	CS-EK-01225	79279-03-1	API	View
Afentanyl	CS-CX-00058	71195-58-9	Intermediate	View
a-Hydroxyetizolam-D4	CS-T-103043	64546-10-7(Unlabelled)	Stable Isotopes	View
Aldol Condensation Dimer of Testosterone	CS-EO-02017	-	Impurity	View
Alfentanil Hydrochloride	CS-T-30528	69049-06-5	API	View
Alfentanil Hydrochloride CII (G1J037)	CS-EB-00063	70879-28-6	USP Standards	View
Alfentanil impurity D	CS-O-52115	-	Impurity	View
Allobarbital-d10	CS-T-102516	1794884-85-7	Stable Isotopes	View
Allobarbital-d10 (1mg/ml in Methanol)	CS-T-102975	1794884-85-7	Stable Isotopes	View
Alpha-Hydroxy Amphetamine	CS-O-59576	100033-48-5	Impurity	View
alpha-Hydroxyzolpidem	CS-O-64689	118026-14-5	Metabolite	View
Alpha-Methyl Fentanyl-d3 Hydrochloride	CS-TB-79024	1246817-79-7	Stable Isotopes	View
alpha-Methylacetylfentanyl	CS-EK-00503	101860-00-8	Metabolite	View
ALPHA-METHYLTHIOFENTANYL	CS-T-94511	103963-66-2	API	View
Alpha-phenyl-2-piperidineacetic acid Hydrochloride	CS-O-20041	19395-40-5	Impurity	View
Alprazolam	CS-IP-00335	28981-97-7	IP Standards	View
Alprazolam	CS-O-10963	28981-97-7	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.