CAS 116-31-4

Retinal

Description:

Retinal, also known as vitamin A aldehyde, is a vital organic compound with the chemical formula C20H28O. It is a derivative of vitamin A and plays a crucial role in the visual process, particularly in the function of photoreceptor cells in the retina. Retinal exists in two isomeric forms: 11-cis-retinal and all-trans-retinal, with the former being essential for vision as it binds to opsin proteins to form rhodopsin, a light-sensitive receptor. The compound is characterized by its conjugated double bond system, which contributes to its light-absorbing properties. Retinal is typically a yellowish to orange solid at room temperature and is soluble in organic solvents but less so in water. Its stability can be affected by light and oxygen, leading to isomerization or degradation. In addition to its biological significance, retinal is also studied for its potential applications in photonics and materials science due to its unique optical properties.

Formula: C₂₀H₂₈O

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: InChIKey=NCYCYZXNIZJOKI-OVSJKPMPSA-N

SMILES: C(=C/C(=C/C=C/C(=C/C=O)/C)/C)\C=1C(C)(C)CCCC1C

Synonyms:

• (all-E)-15-Apo-β-caroten-15-al
• (all-E)-3,7-Dimethyl-9-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2,4,6,8-nonatetraenal
• 15-Apo-β-caroten-15-al
• 15-Apo-β-carotenal
• 2,4,6,8-Nonatetraenal, 3,7-dimethyl-9-(2,6,6-trimethyl-1-cyclohexen-1-yl)-, (all-E)-
• Axerophthal
• E-Retinal
• Retinal, all-trans-
• Retinaldehido
• Retinaldehyd
• Retinaldehyde
• Retinene
• Retinene 1
• Vitamin A aldehyde
• Vitamin A1 aldehyde
• Vitamin A₁ aldehyde
• all-E-Retinal
• all-trans-Retinal
• all-trans-Retinaldehyde
• all-trans-Vitamin A aldehyde
• trans-Retinal
• trans-Vitamin A aldehyde

trans-Retinal

CAS: 116-31-4

Formula: C₂₀H₂₈O

Purity: 98%

Color and Shape: Solid

Molecular weight: 284.4357

Ref: IN-DA007Q83

All Trans-Retinal

CAS: 116-31-4

All Trans-Retinal

Formula: C₂₀H₂₈O

Purity: 98%

Color and Shape: Solid

Molecular weight: 284.44

Ref: 54-OR1029541

All-trans-retinal

CAS: 116-31-4

All-trans-retinal

Formula: C₂₀H₂₈O

Purity: ≥98%

Color and Shape: Solid

Molecular weight: 284.44

Ref: 54-BUP17479

All-trans-Retinal

CAS: 116-31-4

Formula: C₂₀H₂₈O

Purity: ≥ 98.0%

Color and Shape: Yellow, orange or brown powder

Molecular weight: 284.44

Ref: 7W-GK8557

All-trans Retinal

CAS: 116-31-4

Formula: C₂₀H₂₈O

Color and Shape: Yellow Solid

Molecular weight: 284.44

Ref: 4Z-R-766

All-trans-retinal (Standard)

CAS: 116-31-4

All-trans-retinal (Standard) is a reference standard for research and analysis in studies involving All-trans-retinal. All-trans-retinal (Vitamin A aldehyde) is a one of the major vitamin A metabolites in the retina. All-trans-RAL is regenerated to the visual chromophore, 11-cis-retinal in physiological conditions.

Formula: C₂₀H₂₈O

Color and Shape: Solid

Molecular weight: 284.44

Ref: TM-TMSM-3158

all-trans-Retinal-14,15-13C2

Controlled Product

CAS: 116-31-4

Applications Labelled Retinal. Corotenoid component of the visual pigments.
References Ball, et al.: Biochem. J., 42, 516 (1948), O’Brien, D.F., et al.: Science, 218, 961 (1982),

Formula: C₁₈C₂H₂₈O

Color and Shape: Neat

Molecular weight: 286.42

Ref: TR-R240003

all-trans-Retinal

Controlled Product

CAS: 116-31-4

Stability Hygroscopic
Applications Corotenoid component of the visual pigments. All-trans retinal is converted to retinoic acid in vivo by the action of retinal dehydrogenase.
References Ball, et al.: Biochem. J., 42, 516 (1948), O’Brien, D.F., et al.: Science, 218, 961 (1982),

Formula: C₂₀H₂₈O

Color and Shape: Neat

Molecular weight: 284.44

Ref: TR-R240000

All-trans-retinal

CAS: 116-31-4

All-trans-retinal (Vitamin A aldehyde) is a one of the major vitamin A metabolites in the retina.

Formula: C₂₀H₂₈O

Purity: 98.56% - 99.06%

Color and Shape: Solid

Molecular weight: 284.44

Ref: TM-T5256

All-trans-retinal

CAS: 116-31-4

(2E,4E,6E,8E)-3,7-Dimethyl-9-(2,6,6-trimethylcyclohex-1-en-1-yl)nona-2,4,6,8-tetraenal

Formula: C₂₀H₂₈O

Purity: 97%

Molecular weight: 284.44

Ref: IN-DG113031

Retinylaldehyde

CAS: 116-31-4

Retinylaldehyde is a derivative of vitamin A that is important for visual health. It is an inhibitor of the chloride channel, which may be due to its ability to inhibit alcohol dehydrogenase and polymerase chain reaction (PCR). Retinylaldehyde has been shown to have a high affinity for nuclear DNA and can bind to guanine nucleotide-binding protein (G protein) in neural cells. This activity leads to chronic cough in mice. Retinylaldehyde also has been shown as having significant up-regulation in human monocytes when exposed to toll-like receptor ligands. The role of retinylaldehyde in the immune system is not fully understood, but it may play a role in modulating the response to bacterial infection by altering the production of cytokines such as interleukin-1β (IL-1β) and tumor necrosis factor alpha (TNFα).

Formula: C₂₀H₂₈O

Purity: Min. 98 Area-%

Color and Shape: Powder

Molecular weight: 284.44 g/mol

Ref: 3D-FR31755

all-trans-Retinal

CAS: 116-31-4

Formula: C₂₀H₂₈O

Color and Shape: Solid

Molecular weight: 284.4

Ref: BE-MU-0021

All-trans-retinal

CAS: 116-31-4

Formula: C₂₀H₂₈O

Color and Shape: Solid

Molecular weight: 284.4

Ref: BE-RMCR055020

trans-Retinal

CAS: 116-31-4

Purity: 98%

Color and Shape: Solid

Molecular weight: 284.44

Ref: 10-F863156

Retinal

CAS: 116-31-4

Formula: C₂₀H₂₈O

Molecular weight: 284.44

Ref: ST-EA-CP-R65006