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4834-01-9

9-Demethylretinol, also known as 9-demethylretinol or vitamin A2, is a naturally occurring chemical compound that belongs to the retinoid family. It is structurally similar to retinol (vitamin A1) but has a demethylated side chain. 9-Demethylretinol is primarily found in certain fish species, such as trout and salmon, and plays a crucial role in maintaining healthy vision, immune function, and cell growth. It is less potent than retinol but still contributes to overall vitamin A activity in the body. The compound is synthesized from beta-carotene, a precursor found in various fruits and vegetables, and is an essential component of a balanced diet for maintaining optimal health.

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  • 4834-01-9 Structure

  • Basic information

    1. Product Name: 9-demethylretinol
    2. Synonyms: 9-demethylretinol
    3. CAS NO:4834-01-9
    4. Molecular Formula:
    5. Molecular Weight: 272.431
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 4834-01-9.mol

  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: N/A
    3. Flash Point: N/A
    4. Appearance: N/A
    5. Density: N/A
    6. Refractive Index: N/A
    7. Storage Temp.: N/A
    8. Solubility: N/A
    9. CAS DataBase Reference: 9-demethylretinol(CAS DataBase Reference)
    10. NIST Chemistry Reference: 9-demethylretinol(4834-01-9)
    11. EPA Substance Registry System: 9-demethylretinol(4834-01-9)

  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 4834-01-9(Hazardous Substances Data)

4834-01-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4834-01-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,8,3 and 4 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 4834-01:
(6*4)+(5*8)+(4*3)+(3*4)+(2*0)+(1*1)=89
89 % 10 = 9
So 4834-01-9 is a valid CAS Registry Number.

4834-01-9Relevant articles and documents

The Suzuki Reaction in Stereocontrolled Polyene Synthesis: Retinol (Vitamin A), its 9- and/or 13-Demethyl Analogs, and Related 9-Demethyl-dihydroretinoids

Torrado, Alicia,Iglesias, Beatriz,Lopez, Susana,Lera, Angel R. de

, p. 2435 - 2454 (2007/10/02)

A new synthesis of retinol (vitamin A) and 9- and/or 13-demethylretinols, with essentially complete control of regio- and stereochemistry, is described which is based on the thallium-accelerated, palladium-catalyzed cross-coupling reactions of (E)-1-alkenylboronic acids and (E)-1-alkenyl iodides (Suzuki reaction).The procedure has also been extended to the stereocontrolled synthesis of a series of 9-demethyl-dihydroretinoids of potential biological interest.

Stereospecific Synthesis of 9-Demethylretinoids via Palladium-Catalyzed Vinylboronic Acid-Vinyl Iodide Cross Coupling

Lera, Angel R. de,Torrado, Alicia,Iglesias, Beatriz,Lopez, Susana

, p. 6205 - 6208 (2007/10/02)

A stereospecific synthesis of 9-demethylretinoids with either trans or 11-cis geometries, based on the thallium-accelerated palladium-catalyzed cross-coupling reactions of (E)-1-alkenylboronic acid and (E) or (Z)-alkenyl iodides, is described.

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