So far, there has been very limited research work conducted on THCA-B. We do know its chemical composition but the
THCA-A (CRM) (CAS 23978-85-0) - caymanchem.com
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Tetrahydrocannabinolic acid - Wikipedia
It has two isomers, THCA-A, in which the carboxylic acid group is in the 1 position, between the hydroxy group and the carbon chain, and THCA-B, in which the carboxylic acid group is in the 3 position, following the carbon chain.: 20
THCA-B – Delta-9- tetrahydrocannabinolic acid B – A
THCA-B also shows greater thermal stability in comparison to THCA-A.