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Physical & Chemical properties

Dissociation constant

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Description of key information

13-ethyl-3-methoxy-4,6,7,8,9,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-ol can be considered as a neutral molecule in the pH range 2 -10, which is of relevance for biological systems.

Key value for chemical safety assessment

Additional information

For the aliphatic hydroxyl group of 13-ethyl-3-methoxy-4,6,7,8,9,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-ol a pKa value of 15.0 was calculated with the computerprogram ACD/pKa DB. Therefore the substance is to be considered a neutral molecule in the pH range 2 - 10, which is of relevance for aqueous biological systems.