All-trans-Retinal | SSHADE

Molecule

Name: All-trans-Retinal

Name and identifiers

IUPAC name: (2E,4E,6E,8E)-3,7-Dimethyl-9-(2,6,6-trimethylcyclohexen-1-yl)nona-2,4,6,8-tetraenal
Secondary names: Vitamin A aldehyde, retinene, retinaldehyde, RAL
InChI: InChI=1S/C20H28O/c1-16(8-6-9-17(2)13-15-21)11-12-19-18(3)10-7-14-20(19,4)5/h6,8-9,11-13,15H,7,10,14H2,1-5H3/b9-6+,12-11+,16-8+,17-13+
InChI key: NCYCYZXNIZJOKI-OVSJKPMPSA-N
CAS number: 116-31-4

Structure and atomic composition

Formula: $(C_6H_6)_c(CH_3)_3CH=CHC(CH_3)=CHCH=CHC(CH_3)=CH(=O)$
Chemical formula: (C6H6)(CH3)3C8H6(CH3)2COH
Structural formula: CC1=C(C(CCC1)(C)C)/C=C/C(=C/C=C/C(=C/C=O)/C)/C
Charge: 0
Unpaired electrons: 0

	Atom	Name	Number
	$C$	Carbon	20
	$H$	Hydrogen	28
	$O$	Oxygen	1

Relations

no

Isotopic composition

Isotope mixture type: terrestrial abundance

Nuclear spin isomers

Spin type: equilibrated

Molar mass: 284.44 $g/mol$
State STP: solid
Protic: aprotic
Polarity: nonpolar

Fundamental vibration modes

Molecule symmetry: no
Case: complex

Chemical functions and bonds

Chemical functions

	Function	Number
	$R-CH_3$	5
	$R-CH=O$	1

Chemical bonds

	Bond	Number
	$\geq C-C \leq$	5
	$\eqslantgtr C-C\leq$	5
	$\eqslantgtr C-C\eqslantless$	5
	$>C=C<$	5
	$\geq C-H$	21
	$\eqslantgtr C-H$	7
	$>C=O$	1

Retinal. In Wikipedia