α-carotene

α-carotene
IUPAC name β,ε-carotene (1E,3E,5E,7E,9E,11E,13E,15E,17E) -3,7,12,16-tetramethyl -1-(2,6,6-trimethyl-1-cyclohexyl) -18-(2,6,6-trimethyl-1-cyclohex-2-エニル) octadeca-1,3, 5,7,9,11,13,15,17-ノナエン
Identification information
CAS registration number	7488-99-5
PubChem	4369188
SMILES CC1=C(C(CCC1)(C)C)C=CC(=CC=CC(=CC=CC=C (C)C=CC=C(C)C=CC2C(=CCCC2(C)C)C)C)C
Characteristic
Chemical formula	C40H56
Molar mass	536.873 g/mol
The appearance	Purple crystal
Melting point	185.5 degrees Celsius (I seal tube a vacuum)
I can put a case, the data without the special mention for normal temperature (25 degrees Celsius), the ordinary pressure (100 kPa).

α-carotene (α-Carotene) is carotene that one end is β ring, and other end is ε ring. Among carotene, I secondly exist a lot.

I am composed in the creature by δ-carotene and am seen in many plants as well as a green vegetable. With a material of the fat solubility which hardly melts in water, the pure substance is purple. It is oxidized in the body and becomes the retinoid, but it is said that effect is lower than beta-carotene.

${\displaystyle {\rm {\left[\alpha \right]_{643}^{18}}}}$ = +385 degree, very large absorption (CHCl₃) 485, 454nm.

Allied item

• β-carotene
• Lycopene

This item is an unfinished item in conjunction with the chemistry. I demand the cooperator who corrects it, and corrects this item (a project: chemistry /Portal: chemistry).

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