Bakuchiol

CAS Number
10309-37-2
EC Number
685-515-4

What is Bakuchiol?

Bakuchiol (CAS 10309-37-2), also marketed as Sytenol A, is a meroterpene phenol derived from Psoralea corylifolia seed extract.

Where is Bakuchiol used?

  • Cosmetic and personal care: plant-based active ingredient
  • Skincare: retinol alternative in anti-aging serums and creams
  • Facial oils for fine lines and uneven skin tone in clean beauty and sensitive-skin lines
  • Suncare: antioxidant activity
  • Pharmaceutical topicals: functional ingredient for skin renewal and barrier support
  • It is combined with conventional actives such as niacinamide or peptides.

Good to know: Recognized for retinol-like activity without the photosensitivity concerns associated with vitamin A derivatives. Compatible with a broad pH range, supporting multi-active product development.

Commercial specifications

  • Cosmetic-grade and high-purity specifications
  • Leading market grades standardized to ≥99% purity by HPLC
  • Bulk supply in kilogram and drum quantities for development-scale and commercial manufacturing

Other Names (Synonyms)

(S)-Bakuchiol|Sytenol a|4-[(1E,3S)-3-ethenyl-3,7-dimethylocta-1,6-dienyl]phenol|OT12HJU3AR|4-(3-Ethenyl-3,7-dimethyl-1,6-octadienyl)phenol|UP-256|Phenol, 4-[(1E,3S)-3-ethenyl-3,7-dimethyl-1,6-octadien-1-yl]-|Phenol, 4-(3-ethenyl-3,7-dimethyl-1,6-octadienyl)-, [S-(E)]-

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What are the physical properties of Bakuchiol?

Boiling Point 145-147 °C @ Press: 0.7 Torr
Density 0.963
Flash Point 177°C
Color Oil
Form neat
Vapor Pressure 0Pa at 25℃
Refractive Index 1.4500 (estimate)
Log P 5.09 at 20℃ and pH6.31

How is Bakuchiol classified and handled safely? Learn More

Warning
GHS09· Environmental Hazard

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.

Which trade and regulatory codes apply to Bakuchiol?

Storage Class 10 - Combustible liquids
WGK (Germany) 3
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