Welcome to LookChem.com Sign In|Join Free

CAS

  • or

1240504-54-4

Post Buying Request

1240504-54-4 Suppliers

Recommended suppliersmore

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

1240504-54-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1240504-54-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,0,5,0 and 4 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1240504-54:
(9*1)+(8*2)+(7*4)+(6*0)+(5*5)+(4*0)+(3*4)+(2*5)+(1*4)=104
104 % 10 = 4
So 1240504-54-4 is a valid CAS Registry Number.

1240504-54-4Downstream Products

1240504-54-4Relevant articles and documents

Modification of biologically active amides and amines with fluorine-containing heterocycles: 2*. N-(2-thienyl)imines on the base of methyl trifluoropyruvate in cyclocondensation with 1,3-N, N-binucleophiles

Sokolov,Aksinenko

experimental part, p. 197 - 199 (2011/01/10)

An approach to the modification of the biologically active compounds, substituted 2-aminothiophenes, with fluorine-containing five-membered heterocycles is proposed. The reaction of 2-aminothiophenes with methyl trifluoropyruvate yields the corresponding N-(2-thienyl)imines, their subsequent cyclocondensation with 1,3-N,N-binucleophiles (2-aminothiazoline and benzamidines) furnished 5-oxo-6-trifluoromethyl-2,3,5,6- tetrahydroimidazothiazoles and 5-oxo-2-phenyl-4-trifluoromethyl-4,5-dihydro-1 H-imidazoles.

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

What can I do for you?
Get Best Price

Get Best Price for 1240504-54-4