Welcome to LookChem.com Sign In|Join Free
  • or
3-Methyl-5-(4'-nitrophenyl)-1-phenylpyrazole-4-carboxylic acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

109157-01-9

Post Buying Request

109157-01-9 Suppliers

Recommended suppliers

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier

109157-01-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109157-01-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,1,5 and 7 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 109157-01:
(8*1)+(7*0)+(6*9)+(5*1)+(4*5)+(3*7)+(2*0)+(1*1)=109
109 % 10 = 9
So 109157-01-9 is a valid CAS Registry Number.

109157-01-9Relevant academic research and scientific papers

Pyrazole, pyridine and pyridone synthesis on solid support

Grosche, Philipp,Hoeltzel, Alexandra,Walk, Tilmann B.,Trautwein, Axel W.,Jung, Guenther

, p. 1961 - 1970 (1999)

Versatile solid-phase syntheses of trisubstituted pyrazole carboxylic acids, trisubstituted pyridines and disubstituted pyridones are presented. Pyrazoles are prepared by reaction of polymer bound arylidene- or alkylidene- β-oxo esters with phenylhydrazines. Pyridines result from the Krohnke reaction of immobilised enones with 1-(2-oxo-2-arylethyl)pyridinium salts and ammonium acetate. Pyridones are obtained from polymer bound enones, 1- (methoxycarbonylmethyl)pyridinium bromide and ammonium acetate.

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1 Customer Service

What can I do for you?
Get Best Price

Get Best Price for 109157-01-9