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138313-21-0

3β-hydroxy-13,17-seco-5α-androst-13-en-17-aldehyde is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 138313-21-0 Structure

  • Basic information

    1. Product Name: 3β-hydroxy-13,17-seco-5α-androst-13-en-17-aldehyde
    2. Synonyms: 3β-hydroxy-13,17-seco-5α-androst-13-en-17-aldehyde
    3. CAS NO:138313-21-0
    4. Molecular Formula:
    5. Molecular Weight: 290.446
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 138313-21-0.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: 3β-hydroxy-13,17-seco-5α-androst-13-en-17-aldehyde(CAS DataBase Reference)
    10. NIST Chemistry Reference: 3β-hydroxy-13,17-seco-5α-androst-13-en-17-aldehyde(138313-21-0)
    11. EPA Substance Registry System: 3β-hydroxy-13,17-seco-5α-androst-13-en-17-aldehyde(138313-21-0)

  • 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: 138313-21-0(Hazardous Substances Data)

138313-21-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138313-21-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,3,1 and 3 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 138313-21:
(8*1)+(7*3)+(6*8)+(5*3)+(4*1)+(3*3)+(2*2)+(1*1)=110
110 % 10 = 0
So 138313-21-0 is a valid CAS Registry Number.

138313-21-0Upstream product

138313-21-0Downstream Products

138313-21-0Relevant articles and documents

Triethylamine-photosensitized reduction of a ketone via a chemical sensitization mechanism

Wu, Zheng-Zhi,Hug, Gordon L.,Morrison, Harry

, p. 1812 - 1816 (2007/10/02)

Photolysis of acetonitrile solutions of 3β-hydroxy-5α-androstan-17-one (1), or its 3β-methoxy analogue (5), and triethylamine (TEA) with 254-nm light leads to reduction of the 17-keto group with high stereoselectivity. By contrast, Norrish type I products are exclusively observed when the photolysis is carried out in cyclohexane, and products from both α-cleavage and reduction are observed in ether or THF. Excitation of TEA in acetonitrile results in the photoionization of the amine to form a radical cation and a solvent radical anion. Several possible mechanisms for reduction of ground-state ketones by these species, or radicals derived therefrom, are outlined. The limiting quantum efficiency for reduction of 1 is 0.17. The results observed in cyclohexane are explained by singlet-singlet energy transfer from the TEA excited state to the ketone, while both photoionization and energy transfer appear to be operating in the ethereal solvents.

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