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259129-33-4

1-bromo-1,5-heptadien-3-yne is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 259129-33-4 Structure

  • Basic information

    1. Product Name: 1-bromo-1,5-heptadien-3-yne
    2. Synonyms: 1-bromo-1,5-heptadien-3-yne
    3. CAS NO:259129-33-4
    4. Molecular Formula:
    5. Molecular Weight: 171.037
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 259129-33-4.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: 1-bromo-1,5-heptadien-3-yne(CAS DataBase Reference)
    10. NIST Chemistry Reference: 1-bromo-1,5-heptadien-3-yne(259129-33-4)
    11. EPA Substance Registry System: 1-bromo-1,5-heptadien-3-yne(259129-33-4)

  • 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: 259129-33-4(Hazardous Substances Data)

259129-33-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 259129-33-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,9,1,2 and 9 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 259129-33:
(8*2)+(7*5)+(6*9)+(5*1)+(4*2)+(3*9)+(2*3)+(1*3)=154
154 % 10 = 4
So 259129-33-4 is a valid CAS Registry Number.

259129-33-4Relevant articles and documents

A strictly "pair"-selective synthesis of conjugated diynes via Pd-catalyzed cross coupling of 1,3-diynylzincs: A superior alternative to the Cadiot-Chodkiewicz reaction

Negishi, Ei-Ichi,Hata, Mitsuhiro,Xu, Caiding

, p. 3687 - 3689 (2000)

(matrix presented) A strictly "pair"-selective synthesis of conjugated diynes via Pd-catalyzed cross coupling of 1,3-diynylzincs is described. This method, like the Cadiot-Chodkiewicz reaction, requires three steps for the synthesis of R1C≡CC≡CR2 from R1C≡CH, R2X, and HC≡CH. However, the high "pair"-selectivity permitting high-yield production of the desired conjugated diynes without separation of symmetrical diynes promises to make the present protocol superior to the Cadiot-Chodkiewicz reaction in many cases.

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