Alpha-Carotene

CAS Number
7488-99-5
EC Number
200-838-9

What is Alpha-Carotene?

Alpha-Carotene (CAS 7488-99-5) is a naturally occurring carotenoid pigment found primarily in carrots, pumpkin, and other orange-yellow produce.

Where is Alpha-Carotene used?

  • Food and beverage: natural colorant for orange-yellow hues in juices, dairy products, and processed foods without synthetic dyes
  • Nutraceutical and dietary supplement: provitamin A delivery in softgels and capsules
  • Cosmetic and personal care: skin-tone products, serums, and anti-aging creams
  • Pharmaceutical research: reference standard or active ingredient in carotenoid-based formulations under clinical investigation
  • It functions as a provitamin A precursor and antioxidant.

Good to know: Often used alongside beta-carotene to provide a broader carotenoid profile. Oil-dispersed forms are preferred for encapsulation.

Commercial specifications

  • Natural-source extracts, often standardized to defined concentrations
  • HPLC purity data typically documented

Other Names (Synonyms)

Alpha carotene (stereochemistry specified)|α-carotene (natural)|1,3,3-trimethyl-2-[(1e,3e,5e,7e,9e,11e,13e,15e,17e)-3,7,12,16-tetramethyl-18-[(1r)-2,6,6-trimethylcyclohex-2-en-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohexene

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What are the physical properties of Alpha-Carotene?

Melting Point 187.5 °C
Boiling Point 644.94°C (rough estimate)
Density 0.9380 (estimate)
Color Orange to Very Dark Orange
Odor Slight characteristic
Form neat
Refractive Index 1.5630 (estimate)

Which trade and regulatory codes apply to Alpha-Carotene?

HS Code 32041990
UN Number 1593
ADR Class 6.1
Packing Group III
Storage Class 11 - Combustible Solids
WGK (Germany) 3
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