For research use only.

Catalog No.S1276 Synonyms: CD-271

1 publication

Adapalene Chemical Structure

Molecular Weight(MW): 412.52

Adapalene is a dual RAR and RXR agonist, used in the treatment of acne.

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Selleck's Adapalene has been cited by 1 publication

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Biological Activity

Description Adapalene is a dual RAR and RXR agonist, used in the treatment of acne.
RARγ [1] RARβ [1] RXR [1]
In vitro

Adapalene binds to retinoic acid receptors found predominantly in the terminal differentiation zone of epidermis and is more active than tretinoin in modulating cellular differentiation. Adapalene shows greatest affinity for the subtype PARγ, found predominantly in the epidermis. Adapalene is more active than indomethacin, betamethasone valerate, tretinoin, isotretinoin or etretinate in inhibiting lipoxygease activity, but it has little activity against cyclo-oxygenase. [1] Adapalene time- and dose-dependently suppresses DNA synthesis and induces apoptosis in Colon carcinoma cell lines CC-531, HT-29 and LOVO as well as human foreskin fibroblasts. Adapalene shows significantly more effective antiproliferative and proapoptotic effects than 9-cis-retinoic acid (CRA), showing remarkable effects even at 10 μM. Adapalene disrupts DeltaPsi(m) and induces caspase-3 activity in responsive tumor cells. [2]

In vivo Adapalene produces a dose-related reduction in the number of epidermal comedones and an increase in comedo profile and epidermal thickness in the rhino mice. [1] Adapalene results in a decreased expression of TLR-2 and IL-10 in explants of normal skin and explants of acne. Adapalene can modulate the epidermal immune system by increasing the CD1d expression and by decreasing the IL-10 expression by keratinocytes, and these modulations can increase the interactions between dendritic cells and T lymphocytes and could strengthen the antimicrobial activity against Propionibacterium acnes. [3]


Solubility (25°C)

In vitro DMSO 8 mg/mL (19.39 mM)
Water Insoluble
Ethanol Insoluble

* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.

Chemical Information

Molecular Weight 412.52


CAS No. 106685-40-9
Storage powder
in solvent
Synonyms CD-271
Smiles COC1=C(C=C(C=C1)C2=CC3=C(C=C2)C=C(C=C3)C(O)=O)[C]45CC6[CH2][CH](C[CH]([CH2]6)C4)C5

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Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID