≥95% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Store at -20°C Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 6 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
α-Carotene is the second common form of the orange photosynthetic pigment, carotene (β-carotene is the most common), and possesses a β-ring at one end and an ε-ring at the other. Humans and other mammals can produce retinal (a form of Vitamin A) from the retinyl group(β-ionone ring) of α-carotene, though its activity in this role is less than that of β-carotene, which has two retinyl groups. α-carotene is found in high concentrations in yellow-orange vegetables, such as carrots and squash, and dark-green vegetables, such as broccoli and spinach. High blood levels of α-carotene in adults has also been recently linked to lower mortality rates. It is useful as a control for HPLC.
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA →Full quality attributes and acceptance criteria for this grade.
View spec sheet →Taxonomy Tree
| Kingdom | Organic compounds |
|---|---|
| Superclass | Lipids and lipid-like molecules |
| Class | Prenol lipids |
| Subclass | Tetraterpenoids |
| Intermediate Tree Nodes | Carotenoids |
| Direct Parent | Carotenes |
| Alternative Parents | Branched unsaturated hydrocarbons Cycloalkenes Unsaturated aliphatic hydrocarbons |
| Molecular Framework | Aliphatic homomonocyclic compounds |
| Substituents | Carotene - Branched unsaturated hydrocarbon - Cycloalkene - Cyclic olefin - Unsaturated aliphatic hydrocarbon - Unsaturated hydrocarbon - Olefin - Hydrocarbon - Aliphatic homomonocyclic compound |
| Description | This compound belongs to the class of organic compounds known as carotenes. These are a type of unsaturated hydrocarbons containing eight consecutive isoprene units. They are characterized by the presence of two end-groups (mostly cyclohexene rings, but also cyclopentene rings or acyclic groups) linked by a long branched alkyl chain. Carotenes belonging form a subgroup of the carotenoids family. |
| External Descriptors | C40 isoprenoids (tetraterpenes) |
Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Date | Item |
|---|---|---|---|
 L2526113 | Certificate of Analysis | Sep 22, 2026 | C337473 |
| L2526137 | Certificate of Analysis | Sep 22, 2026 | C337473 |
| L2526136 | Certificate of Analysis | Dec 18, 2025 | C337473 |
| F2530017 | Certificate of Analysis | Jun 24, 2025 | C337473 |
| D2523348 | Certificate of Analysis | Mar 25, 2025 | C337473 |
| D2523349 | Certificate of Analysis | Mar 25, 2025 | C337473 |
| C2421202 | Certificate of Analysis | Feb 23, 2024 | C337473 |
| C2421203 | Certificate of Analysis | Feb 23, 2024 | C337473 |
| C2421204 | Certificate of Analysis | Feb 23, 2024 | C337473 |
| C2421208 | Certificate of Analysis | Feb 23, 2024 | C337473 |
| C2421319 | Certificate of Analysis | Feb 23, 2024 | C337473 |
| Solubility | Slightly soluble in ether and benzene, Freely soluble in chloroform, and carbon disulfide. Practically insoluble in water, acids, and alkalies. |
|---|---|
| Refractive Index | n20D1.56 (Predicted) |
| Melt Point(°C) | 183° C |
| Molecular Weight | 536.900 g/mol |
| XLogP3 | 13.600 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 0 |
| Rotatable Bond Count | 10 |
| Exact Mass | 536.438 Da |
| Monoisotopic Mass | 536.438 Da |
| Topological Polar Surface Area | 0.000 Ų |
| Heavy Atom Count | 40 |
| Formal Charge | 0 |
| Complexity | 1200.000 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 1 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 9 |
| Undefined Bond Stereocenter Count | 0 |
| The total count of all stereochemical bonds | 9 |
| Covalently-Bonded Unit Count | 1 |
