Description

(2R,2'R,6R,6'R)-5,5',18,18'-Tetradehydro-5,5',6,6'-Tetrahydro-2,2'-Bis[(E)-4-Hydroxy-3-Methyl-2-Butenyl]-β,β-Carotene is a high-purity, stereochemically defined carotenoid derivative. This compound is valued for its potent antioxidant properties and its role as a key intermediate in the synthesis of complex natural products and specialized pigments. It is primarily sought by manufacturers in the pharmaceutical, nutraceutical, and high-end cosmetic industries for research, development, and production of bioactive formulations.

Application

• Pharmaceutical Intermediate: Serves as a critical chiral building block for the synthesis of novel retinoids and vitamin A analogs with targeted biological activity.
• Nutraceutical Ingredient: Used in advanced dietary supplements for its antioxidant capacity, contributing to cellular health and wellness formulations.
• Cosmetic Actives: Incorporated into premium skincare products for its potential anti-aging and skin-protective benefits against environmental stressors.
• Biochemical Research: Employed as a standard or reagent in studies related to carotenoid metabolism, vision science, and antioxidant mechanisms.
• Food Colorant Precursor: Acts as a precursor in the development of stable, natural colorants for specialized food and beverage applications.
• Reference Standard: Supplied as a high-purity certified reference material (CRM) for analytical method development and quality control laboratories.

Basic Information

Product Name	(2R,2'R,6R,6'R)-5,5',18,18'-Tetradehydro-5,5',6,6'-Tetrahydro-2,2'-Bis[(E)-4-Hydroxy-3-Methyl-2-Butenyl]-β,β-Carotene
CAS No.	11031-47-3
Molecular Formula	C₄₈H₆₄O₂
Molecular Weight	672.99 g/mol
Synonyms	2,2'-Bis(4-hydroxy-3-methyl-2-butenyl)-β,β-carotene; 3,4-Didehydro-1,2-dihydro-ψ,ψ-carotene-1,2-diol; 3',4'-Didehydro-β,β-carotene-1,2-diol; 1,1'-(3,7,12,16-Tetramethyl-1,3,5,7,9,11,13,15,17-octadecanonaene-1,18-diyl)bis(2-methyl-2-buten-1-ol); (all-E)-1,1'-(3,7,12,16-Tetramethyl-1,3,5,7,9,11,13,15,17-octadecanonaene-1,18-diyl)bis(2-methyl-2-buten-1-ol)
EINECS	Contact for details

Quality Control

Our (2R,2'R,6R,6'R)-5,5',18,18'-Tetradehydro-5,5',6,6'-Tetrahydro-2,2'-Bis[(E)-4-Hydroxy-3-Methyl-2-Butenyl]-β,β-Carotene is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity verification and impurity profiling by HPLC, to ensure it meets stringent specifications for research and production use. Certificates of Analysis (COA) detailing identity, purity, and chiral composition are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store at -20°C or below under an inert atmosphere for long-term stability. For short-term use, the material may be stored at 2-8°C. The compound is light-sensitive and should be handled under subdued light to prevent degradation. Allow the sealed container to reach room temperature before opening to minimize moisture condensation.

Specification

Item	Specification
Appearance	Red to reddish-orange powder or crystals
Identification (HPLC)	Conforms to reference standard
Identification (IR)	Conforms to structure
Purity (HPLC, Area %)	≥ 95.0%
Chiral Purity (Chiral HPLC)	≥ 98.0% (2R,2'R,6R,6'R isomer)
Loss on Drying	≤ 2.0 %
Residue on Ignition	≤ 0.5 %
Heavy Metals (as Pb)	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.