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128434-81-1

7E,9E,13E-10,20-methanoretinal is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 128434-81-1 Structure

  • Basic information

    1. Product Name: 7E,9E,13E-10,20-methanoretinal
    2. Synonyms:
    3. CAS NO:128434-81-1
    4. Molecular Formula:
    5. Molecular Weight: 296.453
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 128434-81-1.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: 7E,9E,13E-10,20-methanoretinal(CAS DataBase Reference)
    10. NIST Chemistry Reference: 7E,9E,13E-10,20-methanoretinal(128434-81-1)
    11. EPA Substance Registry System: 7E,9E,13E-10,20-methanoretinal(128434-81-1)

  • 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: 128434-81-1(Hazardous Substances Data)

128434-81-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128434-81-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,4,3 and 4 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 128434-81:
(8*1)+(7*2)+(6*8)+(5*4)+(4*3)+(3*4)+(2*8)+(1*1)=131
131 % 10 = 1
So 128434-81-1 is a valid CAS Registry Number.

128434-81-1Downstream Products

128434-81-1Relevant articles and documents

Synthesis and spectroscopic characterization of the doubly locked 9E,11Z retinal model systems 7E,13E-11,19-10,29-dimethanoretinal and its 13Z isomer

Groesbeek, M.,Robijn, G. W.,Lugtenburg, J.

, p. 92 - 98 (1992)

7E,13E-11,19-10,20-dimethanoretinal (1) and its 13Z isomer 2 were prepared from β-ionone, using the novel synthon 2-(diethoxyphosphinyl)-5,5-dimethoxyhexanenitrile.This synthon was also used to prepare 7E,9E,13E-10,20-methanoretinal (3) and its 13Z isomer 4 in high yield, starting from β-ionone.Spectroscopic analysis (mass, 1H and 13C NMR and UV/Vis) of these compounds is discussed.The introduction of the methano bridges leads to minimal steric and electronic changes.The photostationary state reached from 1 and 2 has the 13Z form 2 as the main constituent.This is one of the very few with a Z form as the main constituent of the photostationary state. 1 and 2 are very sensitive to acid-catalyzed isomerization of the 13-C=14-C double bond.The presence of the 11,19-methano bridge is responsible for this efficient Z-E isomerization.

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