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CAS

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138770-04-4

Cyclopentanecarboxylic acid, 2-(2-heptynylidene)-1-(phenylsulfonyl)-, methyl ester, (E)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 138770-04-4 Structure

  • Basic information

    1. Product Name: Cyclopentanecarboxylic acid, 2-(2-heptynylidene)-1-(phenylsulfonyl)-, methyl ester, (E)-
    2. Synonyms:
    3. CAS NO:138770-04-4
    4. Molecular Formula: C20H24O4S
    5. Molecular Weight: 360.474
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 138770-04-4.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: Cyclopentanecarboxylic acid, 2-(2-heptynylidene)-1-(phenylsulfonyl)-, methyl ester, (E)-(CAS DataBase Reference)
    10. NIST Chemistry Reference: Cyclopentanecarboxylic acid, 2-(2-heptynylidene)-1-(phenylsulfonyl)-, methyl ester, (E)-(138770-04-4)
    11. EPA Substance Registry System: Cyclopentanecarboxylic acid, 2-(2-heptynylidene)-1-(phenylsulfonyl)-, methyl ester, (E)-(138770-04-4)

  • 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: 138770-04-4(Hazardous Substances Data)

138770-04-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138770-04-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,7,7 and 0 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 138770-04:
(8*1)+(7*3)+(6*8)+(5*7)+(4*7)+(3*0)+(2*0)+(1*4)=144
144 % 10 = 4
So 138770-04-4 is a valid CAS Registry Number.

138770-04-4Downstream Products

138770-04-4Relevant articles and documents

SYNTHESIS OF ETHYNYLIDENE CYCLOPENTANES BY A CYCLISATION CATALYZED BY THE SIMULTANEOUS PRESENCE OF PALLADIUM (0) AND COPPER (I)

Boussy, Didier,Balme, Genevieve,Gore, Jacques

, p. 6541 - 6544 (1991)

Ethynylidene cyclopentanes 3 can be formed in 35-71percent yield from the reaction of the enolates of compounds such as δ-acetylenic malonates with 1-halogeno-1-alkynes.This reaction requires catalysis by both palladium (0) and copper (I) species.

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