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all-trans-retinal

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FOB Price $200.00

Origin: China

Cas No: 116-31-4

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 100 mt/month

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  • Products Specification
  • Product Description
  • Property

    CAS No.: 116-31-4 Formula: C20H28O Molecular Weight: 284.43600

    Description

    Retinal is also known as retinaldehyde. It was originally called retinene, and renamed afterwards it was discovered to be vitamin A aldehyde. Retinal is one of the many forms of vitamin A (the number of which varies from species to species). Retinal is a polyene chromophore, bound to proteins called opsins, and is the chemical basis of animal vision. Retinal allows certain microorganisms to convert light into metabolic energy.
    Vertebrate animals ingest retinal directly from meat, or they produce retinal from carotenoids, either from one of two carotenes (α-carotene, β-carotene) or from β-cryptoxanthin, a type of xanthophyll. These carotenoids must be obtained from plants or other photosynthetic organisms. No other carotenoids can be converted by animals to retinal, and some carnivores cannot convert any carotenoids at all. The other main forms of vitamin A, retinol, and a partially active form, retinoic acid, may both be produced from retinal.
    Invertebrates such as insects and squid use hydroxylated forms of retinal in their visual systems, which derive from conversion from other xanthophylls.

    Basic Info

    Chemical Name all-trans-retinal
    Synonyms

    all trans-Retinal;
    all-trans-Retinal;
    Retinal (all trans);

    CAS No. 116-31-4
    Molecular Formula C20H28O
    Molecular Weight 284.43600
    PSA 17.07000
    LogP 5.71690

    Properties

    Appearance & Physical State Yellow powder
    Density 0.948g/cm3
    Boiling Point 421.4ºC at 760mmHg
    Melting Point 61-63ºC
    Flash Point 205.4ºC
    Refractive Index 1.54
    Storage Condition -20ºC
    Vapor Pressure 2.61E-07mmHg at 25°C

    Safety Info

    RTECS VH6407000
    Safety Statements 22-36/37
    HS Code 2912299000
    WGK Germany 3
    Risk Statements R22; R38
    Hazard Codes Xn
    Symbol GHS07
    Signal Word Warning
    Hazard Declaration H302; H315

    Synthesis Route

    all-trans-retinal propylene dithioacetal13-cis-retinal+all-trans-retinal
    all-trans-Retinol13-cis-retinal+all-trans-retinal
    all-trans-retinal13-cis-retinal+all-trans-retinal

    GC Analysis

    Column type Active phase Temperature (°C) Retention Index (I) Temperature Control Method
    Capillary DB-1 240. 2466. isothermal
    Capillary DB-1 240. 2466. isothermal

    Precursor

    (2E)-3-bromobut-2-enal
    2,2-dimethylpent-4-enal
    ((1E,3E,5E)-4-methyl-6-(2,6,6-trimethylcyclohex-1-en-1-yl)hexa-1,3,5-trien-1-yl)boronic acid
    all-trans-Retinol

    Downstream Product

    4-Keto Retinal
    4-oxo-13-cis-retinal
    4-hydroxy-13-cis-retinal
    diketoretinal

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