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Oils, Fats & Waxes

Bakuchiol

CAS: 10309-37-2

Overview

Bakuchiol (CAS 10309-37-2 ), also marketed as Sytenol A, is a meroterpene phenol derived from Psoralea corylifolia seed extract. It functions as a plant-based active ingredient in cosmetic and personal care formulations.

This compound is recognized for its retinol-like activity without the photosensitivity concerns associated with vitamin A derivatives. In skincare formulations, it is used as a retinol alternative in anti-aging serums and creams.

It is particularly effective in facial oils targeting fine lines and uneven skin tone within clean beauty and sensitive-skin product lines. It is also incorporated into suncare formulations for its antioxidant activity.

This ingredient helps to stabilize UV-exposed skin and protect against oxidative stress from environmental exposure. Formulators use it in combination with conventional actives such as niacinamide or peptides.

Its compatibility with a broad pH range supports multi-active product development. In pharmaceutical topicals, it is evaluated as a functional ingredient in preparations targeting skin renewal and barrier support.

The material is supplied as a pale yellow to amber viscous liquid. Standard commercial grades include cosmetic-grade and high-purity specifications, with leading market grades typically standardized to high purity.

Leading market grades are often standardized to ≥99% purity by HPLC. Bulk supply is available in kilogram and drum quantities to support both development-scale and commercial manufacturing needs.

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Physical Properties

Boiling Point145-147 °C @ Press: 0.7 Torr
Density0.963
Flash Point177°C
ColorOil
Formneat
Vapor Pressure0Pa at 25℃
Refractive Index1.4500 (estimate)
Log P5.09 at 20℃ and pH6.31

Safety & Handling

Warning GHS09 Hazard Statements H400 Very toxic to aquatic life H410 Very toxic to aquatic life with long lasting effects Precautionary Statements P273 Avoid release to the environment. P391 Collect spillage. P501 Dispose of contents/container in accordance with local regulations.

Trade & Regulatory

Storage Class10 - Combustible liquids
WGK (Germany)3

Other Names

(S)-Bakuchiol | Sytenol a | 4-[(1E3S)-3-ethenyl-37-dimethylocta-16-dienyl]phenol | OT12HJU3AR | 4-(3-Ethenyl-37-dimethyl-16-octadienyl)phenol | UP-256 | Phenol4-[(1E3S)-3-ethenyl-37-dimethyl-16-octadien-1-yl]- | Phenol4-(3-ethenyl-37-dimethyl-16-octadienyl)-[S-(E)]-

Related Products

Chemical Properties

CAS Number
10309-37-2
EC Number
685-515-4
Mol. Weight
256.4

Industries

Documentation