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CAS

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251539-03-4

[4-(4-chloro-phenyl)-3-cyano-5,6-dihydro-thieno[2,3-h]quinolin-2-ylsulfanyl]-acetic acid ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 251539-03-4 Structure

  • Basic information

    1. Product Name: [4-(4-chloro-phenyl)-3-cyano-5,6-dihydro-thieno[2,3-h]quinolin-2-ylsulfanyl]-acetic acid ethyl ester
    2. Synonyms: [4-(4-chloro-phenyl)-3-cyano-5,6-dihydro-thieno[2,3-h]quinolin-2-ylsulfanyl]-acetic acid ethyl ester
    3. CAS NO:251539-03-4
    4. Molecular Formula:
    5. Molecular Weight: 440.974
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 251539-03-4.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: [4-(4-chloro-phenyl)-3-cyano-5,6-dihydro-thieno[2,3-h]quinolin-2-ylsulfanyl]-acetic acid ethyl ester(CAS DataBase Reference)
    10. NIST Chemistry Reference: [4-(4-chloro-phenyl)-3-cyano-5,6-dihydro-thieno[2,3-h]quinolin-2-ylsulfanyl]-acetic acid ethyl ester(251539-03-4)
    11. EPA Substance Registry System: [4-(4-chloro-phenyl)-3-cyano-5,6-dihydro-thieno[2,3-h]quinolin-2-ylsulfanyl]-acetic acid ethyl ester(251539-03-4)

  • 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: 251539-03-4(Hazardous Substances Data)

251539-03-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 251539-03-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,1,5,3 and 9 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 251539-03:
(8*2)+(7*5)+(6*1)+(5*5)+(4*3)+(3*9)+(2*0)+(1*3)=124
124 % 10 = 4
So 251539-03-4 is a valid CAS Registry Number.

251539-03-4Relevant articles and documents

A convenient synthesis of dithieno[2,3-b] [2,3-h]quinolines and pyrimido [4′,5′:4,5]thieno [2,3-b]thieno[2,3-h]quinolines

Geies, Ahmed A.

, p. 201 - 214 (2007/10/03)

6,7-Dihydrobenz[b]thiophen-4(5H)one (1) was condensed with 4- chlorobenzaldehyde to yield the benzylidene derivative 2 which underwent Michael addition reacting with cyanothioacetamide in methanolic sodium methoxide solution to give the thienoquinoline 3. Compound 3 was reacted with α- halo compounds to obtain the substituted thio intermediates 4a-f, which upon treatment with sodium ethoxide produce the dithienoquinoline derivatives 5a-f. Thienopyrimidothienoquinoline e.g. 9 was obtained from the reaction of ?- aminocarboxamide derivative 5d with triethyl orthoformate.

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