Sigma-Aldrich™ β-Carotene, Synthetic, ≥95% (HPLC), Crystalline

Sigma-Aldrich™ β-Carotene is a synthetic carotenoid supplied as a crystalline, dark red-purple to red-brown solid with a purity of ≥95% (HPLC). As the most important of the provitamins A, β-carotene functions as a precursor to vitamin A (retinol) and exhibits strong antioxidant activity, inhibiting radical-initiated lipid peroxidation in vitro.

This high-purity crystalline form is widely used as a reference standard in analytical chemistry (HPLC), in nutritional assays, and in biological research focused on carotenoids, antioxidants, and vitamin A metabolism.

Key Features

• Synthetic, crystalline form – stable and highly pure.
• Assay ≥95% (HPLC) – validated by high-performance liquid chromatography.
• Antioxidant & provitamin A – precursor to retinol with protective activity against oxidative stress.
• Impurities controlled – essentially free from α-carotene.
• Reliable standard – ideal for use in HPLC calibration and nutritive assays.

Applications

• HPLC standard for quantification of β-carotene and carotenoid groups.
• Preparation of standard curves in nutritive and biochemical assays.
• Analytical identification and quantification of carotenoids in food, biological, and environmental samples.
• Research on vitamin A physiology, antioxidant activity, and carotenoid bioavailability.

Technical Specifications

Available Formats

Sigma-Aldrich™ β-Carotene, synthetic, ≥95% (HPLC), crystalline provides a reliable, high-purity carotenoid for analytical, nutritional, and biochemical research. With its defined crystalline form, high assay value, and role as both antioxidant and vitamin A precursor, it is a trusted standard for laboratories studying oxidative stress, carotenoid quantification, and nutritional biochemistry.