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CAS

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134255-57-5

5-methyl-5,7-diphenyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidine is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 134255-57-5 Structure

  • Basic information

    1. Product Name: 5-methyl-5,7-diphenyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidine
    2. Synonyms: 5-methyl-5,7-diphenyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidine
    3. CAS NO:134255-57-5
    4. Molecular Formula:
    5. Molecular Weight: 288.352
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 134255-57-5.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: 5-methyl-5,7-diphenyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidine(CAS DataBase Reference)
    10. NIST Chemistry Reference: 5-methyl-5,7-diphenyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidine(134255-57-5)
    11. EPA Substance Registry System: 5-methyl-5,7-diphenyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidine(134255-57-5)

  • 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: 134255-57-5(Hazardous Substances Data)

134255-57-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 134255-57-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,2,5 and 5 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 134255-57:
(8*1)+(7*3)+(6*4)+(5*2)+(4*5)+(3*5)+(2*5)+(1*7)=115
115 % 10 = 5
So 134255-57-5 is a valid CAS Registry Number.

134255-57-5Downstream Products

134255-57-5Relevant articles and documents

Chlorotrimethylsilane-promoted condensation of ketones and aminoazoles

Ryabukhin, Sergey V.,Naumchik, Vasiliy S.,Grygorenko, Oleksandr O.,Tolmachev, Andrey A.

, p. 1147 - 1150,4 (2012)

Chlorotrimethylsilane-promoted reaction of ketones and aminoazoles (i.e., 3-amino-1,2,4-triazoles, 5-aminotetrazole) at 2: 1 ratio resulted in the formation of 4,5-dihydroazolo[1,5-a]pyrimidine derivatives as the single regioisomers in 35 - 71% yields. In the case of tert-butylmethylketone and 5-aminotetrazole as the starting materials, the solvent (dimethylformamide) entered the reaction instead of the second ketone molecule.

Synthesis of dihydro-1,2,4-triazolo[1,5-a]pyrimidines

Wermann,Hartmann

, p. 189 - 191 (2007/10/02)

Several 5,7-diaryl-4,5-dihydro-5-methyl-1,2,4-triazolo[1,5-a]pyrimidines 3a-f and 5,7-diaryl-4,7-dihydro-7-methyl-1,2,4-triazolo[1,5-a]pyrimidines 4a-f were synthesized in high yield from 5-amino-1H-1,2,4-triazole (amitrole) (1) and acetophenones 2 by heating in the presence of zinc chloride and subsequent separation of the isomers.

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