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Details

Stereochemistry ACHIRAL
Molecular Formula C28H28O3
Molecular Weight 412.5201
Optical Activity NONE
Defined Stereocenters 0 / 0
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of ADAPALENE

SMILES

COC1=C(C=C(C=C1)C2=CC3=C(C=C2)C=C(C=C3)C(O)=O)C45CC6CC(CC(C6)C4)C5

InChI

InChIKey=LZCDAPDGXCYOEH-UHFFFAOYSA-N
InChI=1S/C28H28O3/c1-31-26-7-6-23(21-2-3-22-12-24(27(29)30)5-4-20(22)11-21)13-25(26)28-14-17-8-18(15-28)10-19(9-17)16-28/h2-7,11-13,17-19H,8-10,14-16H2,1H3,(H,29,30)

HIDE SMILES / InChI

Molecular Formula C28H28O3
Molecular Weight 412.5201
Charge 0
Count
MOL RATIO 1 MOL RATIO (average)
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

Description

Adapalene is a topical retinoid primarily used in the treatment of acne and is used (off-label) to treat keratosis pilaris as well as other skin conditions. Galderma currently markets it under the trade names Differin in some countries, and Adaferin in India. Adapalene acts on retinoid receptors. Biochemical and pharmacological profile studies have demonstrated that adapalene is a modulator of cellular differentiation, keratinization, and inflammatory processes all of which represent important features in the pathology of acne vulgaris. Mechanistically, adapalene binds to specific retinoic acid nuclear receptors but does not bind to the cytosolic receptor protein. Although the exact mode of action of adapalene is unknown, it is suggested that topical adapalene normalizes the differentiation of follicular epithelial cells resulting in decreased microcomedone formation.

Originator

Approval Year

Targets

Primary TargetPharmacologyConditionPotency

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
DIFFERIN

Cmax

ValueDoseCo-administeredAnalytePopulation
0.04 ng/mL
6.8 mg 1 times / day multiple, topical
ADAPALENE plasma
Homo sapiens

Doses

AEs

PubMed

Sample Use Guides

In Vivo Use Guide
Cream should be applied to affected areas of the skin, once daily at nighttime.
Route of Administration: Topical
In Vitro Use Guide
Explants of normal human skin and explants of acne patients were incubated with adapalene (10(-7) or 10(-6) M) for 24 h. Evaluation of epidermal expression by immunohistochemistry showed a decreased expression of TLR-2 and IL-10 in explants of normal skin and explants of acne with adapalene. On the contrary, adapalene increased CD1d expression in explants of acne patients. Thus, adapalene can modulate the epidermal immune system by increasing the CD1d expression and by decreasing the IL-10 expression by keratinocytes.
Substance Class Chemical
Record UNII
1L4806J2QF
Record Status Validated (UNII)
Record Version