Retinal

All-trans-retinal
Names
	IUPAC name Retinal
	Systematic IUPAC name (2E,4E,6E,8E)-3,7-Dimethyl-9-(2,6,6-trimethylcyclohex-1-en-1-yl)nona-2,4,6,8-tetraenal
	Other names Retinene; Retinaldehyde; Vitamin A aldehyde; RAL;
Identifiers
CAS Number	116-31-4 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:17898;
ChemSpider	553582;
ECHA InfoCard	100.003.760
PubChem CID	638015;
UNII	RR725D715M ;
CompTox Dashboard (EPA)	DTXSID5025998 ;
	SMILES CC1=C(C(CCC1)(C)C)/C=C/C(=C/C=C/C(=C/C=O)/C)/C;
Properties
Chemical formula	C20H28O
Molar mass	284.44 g·mol−1
Appearance	Orange crystals from petroleum ether[1]
Melting point	61 to 64 °C (142 to 147 °F; 334 to 337 K)[1]
Solubility in water	Nearly insoluble
Solubility in fat	Soluble
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	Infobox references

Retinal (also known as Retinaldehyde) is a hydrocarbon belonging to the aldehyde group. It is commonly used as a skincare product.

References

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