• Manufactured under ISO/IEC17025:2005 and ISO Guide 34:2009 specifications
• This is a Certified Reference Material (CRM) intended for use as a quantitative analytical reference standard
• Has been formulated as an exempt preparation which meets criteria established by the US DEA
• Possession of a DEA Controlled Substance registration is not necessary nor is a DEA 222 form required to purchase this product

• Δ⁹-THCA-A
• Δ⁹-Tetrahydrocannabinolic Acid A
• Δ⁹-THC Carboxylic Acid

THCA-A (CRM) (Item No. ISO60175) is a certified reference material that is structurally categorized as a cannabinoid. THCA-A is a phytocannabinoid that is a common component of hashish.¹ There are two acid isomers of Δ⁹-THC, THCA-A and THCA-B. In THCA-A, the carboxylic acid group is found at the 2 position. Neither THCA-A nor THCA-B is psychoactive, although both forms are decarboxylated upon heating to form the active Δ⁹-THC.¹ This product is intended for research and forensic applications.

Cayman Chemical products containing Certified Reference Material (CRM) in the name are highly qualified materials manufactured and tested to meet ISO/IEC 17025 and ISO Guide 34 international guidelines for reference materials. These materials are tested using validated analytical methods on qualified instrumentation to ensure traceability to SI units of measure. Cayman’s CRMs are tested for Homogeneity and Stability and are provided with a certificate stating the CRM property value(s) along with the combined uncertainty of the property value(s). These materials are intended for quantitative applications where quantitative accuracy and uncertainty are critical. Cayman Chemical is committed to providing quality products to its customers as evidenced by its accreditation to the ISO/IEC 17025 and ISO Guide 34 standards.