472-92-4

Basic information

• Product Name: 3,7,12,16,20,24-hexamethyl-1-[(1R)-2,6,6-trimethyl-1-cyclohex-2-enyl]pentacosa-1,3,5,7,9,11,13,15,17,19,23-undecaene
• Synonyms: 3,7,12,16,20,24-hexamethyl-1-[(1R)-2,6,6-trimethyl-1-cyclohex-2-enyl]pentacosa-1,3,5,7,9,11,13,15,17,19,23-undecaene;d-Carotene
• CAS NO: 472-92-4
• Molecular Formula: C₄₀H₅₆
• Molecular Weight: 536.89
• Mol File: 472-92-4.mol
• Article Data: 1

Chemical Properties

• Melting Point: 140.5°
• Boiling Point: 648.1°Cat760mmHg
• Flash Point: 343.6°C
• Appearance: /
• Density: 0.911g/cm³
• Vapor Pressure: 5.71E-16mmHg at 25°C
• Refractive Index: 1.545
• CAS DataBase Reference: 3,7,12,16,20,24-hexamethyl-1-[(1R)-2,6,6-trimethyl-1-cyclohex-2-enyl]pentacosa-1,3,5,7,9,11,13,15,17,19,23-undecaene(CAS DataBase Reference)
• NIST Chemistry Reference: 3,7,12,16,20,24-hexamethyl-1-[(1R)-2,6,6-trimethyl-1-cyclohex-2-enyl]pentacosa-1,3,5,7,9,11,13,15,17,19,23-undecaene(472-92-4)
• EPA Substance Registry System: 3,7,12,16,20,24-hexamethyl-1-[(1R)-2,6,6-trimethyl-1-cyclohex-2-enyl]pentacosa-1,3,5,7,9,11,13,15,17,19,23-undecaene(472-92-4)

Safety Data

• Hazardous Substances Data: 472-92-4(Hazardous Substances Data)

Usage

Uses

δ-Carotene is an antioxidant β-carotene (C184250) found in many plants such as in sea buckthorn, maize, and flower petals.

Purification Methods

δ-Carotene crystallises from CS2/hexane/EtOH as red needles. The racemic carotene is purified through an alumina (Grade II) column by elution with 15% *C6H6/pet ether (b 60-80o), and the main band eluent is evaporated and the residue is crystallised from MeOH/pet ether (b 60-80o) to give -carotene with m 150-151o. [Porter & Anderson Arch Biochem 32 211951, Synthesis: Manchand et al. J Chem Soc 2019 1965, Absolute Config: Buchecher & Eugster Helv Chim Acta 54 327 1971, 5 III 2453, 5 IV 2617.] -Carotene (

InChI:InChI=1/C40H56/c1-32(2)18-13-21-35(5)24-15-26-36(6)25-14-22-33(3)19-11-12-20-34(4)23-16-27-37(7)29-30-39-38(8)28-17-31-40(39,9)10/h11-12,14-16,18-20,22-30,39H,13,17,21,31H2,1-10H3/b12-11+,22-14+,23-16+,26-15+,30-29+,33-19+,34-20+,35-24+,36-25+,37-27+

Upstream product

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• 5056-17-7 (2E,4E,6E)-2,7-dimethyl-2,4,6-octatrienedial 
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• 538315-01-4 (2E,4E,6E)-8-Hydroxy-3,7-dimethyl-2,4,6-octatriensaeure-methylester 
• 123556-68-3 (2E,4E,6E)-8-Bromo-3,7-dimethyl-octa-2,4,6-trienoic acid methyl ester 
• 19945-56-3 methyl 4-diethylphosphono-3-methyl-2-butenoate 
• 1070-48-0 (2E,4E,6E,8E,10E)-3,7,11,15-tetramethylhexadeca-2,4,6,8,10,14-hexadienal 
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Relevant articles and documents

Synthesen von Carotinen mit ψ-Endgruppen und (Z)-Konfiguration an terminalen konjugierten Doppelbindungen

Five carotenes bearing (5Z)-ψ-end groups were synthesized and carefully characterized: (5Z)-lycopene (6), (5Z,5'Z)-lycopene (7), (5'Z)-neurosporene (8), (5'Z)-β,ψ-carotene (12), and (5'Z)-εψ-carotene (14).