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α-Carotene

Identifiers
CAS number	7488-99-5
PubChem	4369188
SMILES	`C\C2=C\CCC(C)(C)C2/C=CC(\C)=C\C=C\C(\C)=C\C=C\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(/C)CCCC1(C)C`
InChI	1/C40H56/c1-31(19-13-21-33(3)25-27-37-35(5)23-15-29-39(37,7)8)17-11-12-18-32(2)20-14-22-34(4)26-28-38-36(6)24-16-30-40(38,9)10/h11-14,17-23,25-28,37H,15-16,24,29-30H2,1-10H3/b12-11+,19-13+,20-14+,27-25+,28-26+,31-17+,32-18+,33-21+,34-22+
InChI key	ANVAOWXLWRTKGA-JLTXGRSLBQ
ChemSpider ID	3571861
Properties
Molecular formula	C₄₀H₅₆
Molar mass	536.873
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

α-Carotene is a form of carotene with a β-ring at one end and an ε-ring at the other. It is the second most common form of carotene.

v • d • e Carotenoids

Carotenes (C₄₀)	α-Carotene · β-Carotene · γ-Carotene · δ-Carotene · ε-Carotene · ζ-Carotene · Lycopene · Neurosporene · Phytoene · Phytofluene

Xanthophylls (C₄₀)	Antheraxanthin · Astaxanthin · Canthaxanthin · Citranaxanthin · Cryptoxanthin · Diadinoxanthin · Diatoxanthin · Dinoxanthin · Flavoxanthin · Fucoxanthin · Lutein · Neoxanthin · Rhodoxanthin · Rubixanthin · Violaxanthin · Zeaxanthin

Apocarotenoids (C_<40)	Abscisic acid · Apocarotenal · Bixin · Crocetin · Food orange 7 · Ionones · Peridinin

Vitamin A retinoids (C₂₀)	Retinal · Retinoic acid · Retinol

Retinoid drugs	Acitretin · Alitretinoin · Bexarotene · Etretinate · Fenretinide · Isotretinoin · Tazarotene · Tretinoin

A	Retinol · β-Carotene · Tretinoin · α-Carotene

D	D₂ (Ergosterol, Ergocalciferol) · D₃ (7-Dehydrocholesterol, Previtamin D3, Cholecalciferol, 25-hydroxycholecalciferol, Calcitriol (1,25-dihydroxycholecalciferol), Calcitroic acid) D₄ (Dihydroergocalciferol) · D₅ · D analogues (Dihydrotachysterol, Calcipotriol, Tacalcitol, Paricalcitol)

E	Tocopherol (Alpha, Beta, Gamma, Delta) · Tocotrienol · Tocofersolan

K	Naphthoquinone · Phylloquinone/K1 · Menatetrenone/K2 · Menadione/K3

B	B₁ (Thiamine) · B₂ (Riboflavin) · B₃ (Niacin, Nicotinamide) · B₅ (Pantothenic acid, Dexpanthenol, Pantethine) · B₆ (Pyridoxine, Pyridoxal phosphate, Pyridoxamine) B₇ (Biotin) · B₉ (Folic acid, Dihydrofolic acid, Folinic acid) · B₁₂ (Cyanocobalamin, Hydroxocobalamin, Methylcobalamin, Cobamamide) · Choline

C	Ascorbic acid · Dehydroascorbic acid

see also: enzyme cofactors, enzymes, Multivitamins

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