β-Carotene

• Catalog No.: C4582
• CAS Number: 7235-40-7
• M. F.: C40H56
• M. W.: 536.87264
• Purity: ≥95% (HPLC)

SYNONYMS

• Title: β-胡萝卜素
• IUPAC name: 1,3,3-trimethyl-2-[(1E,3E,5E,7E,9E,11E,13E,15E,17E)-3,7,12,16-tetramethyl-18-(2,6,6-trimethylcyclohex-1-en-1-yl)octadeca-1,3,5,7,9,11,13,15,17-nonaen-1-yl]cyclohex-1-ene
• IUPAC Traditional name: β-carotene
• Synonyms: 维生素原 A; β,β-胡萝卜素

DATABASE IDS

• PubChem SID: 24892702
• Beilstein Number: 1917416
• EC Number: 230-636-6
• MDL Number: MFCD00001556
• CAS Number: 7235-40-7

PROPERTIES

• Biological Source: synthetic
• Impurities: α-carotene, essentially free
• Purity: ≥95% (HPLC)
• Type: Type II
• Absorption Wavelength: ε1%/450 nm, hexane 2450-2590 (vs. 2590, lit.)
• Absorption Wavelength: ε1%/478 nm, hexane 2160-2280 (vs. 2280, lit.)
• Apperance: red to purple crystalline
• Flash Point: 103 °C
• Flash Point: 217.4 °F
• Solubility: hexane: soluble100 μg/mL
• Solubility: DMSO: soluble30 μg/mL
• Solubility: H2O: insoluble
• Personal Protective Equipment: Eyeshields, Gloves
• Risk Statements: 44
• RTECS: FI0329500
• Safety Statements: 7-15-18
• Storage Temperature: -20°C
• Supplemental Hazard Statements: Risk of explosion if heated under confinement.
• German water hazard class: 1

DETAILS

Description (简体中文)

Biochem/physiol Actions
维生素原 A，即 β-胡萝卜素能分类作为抗氧化剂的最重要的原因就是它可以在体外抑制自由基引发的过氧化。然而，它在体内究竟表现为抗氧化剂或是促氧化剂却取决于细胞环境。它可以降低许多癌症的发病率，却会增加吸烟者患肺癌的几率。