Welcome to LookChem.com Sign In|Join Free

CAS

  • or

19508-15-7

Post Buying Request

19508-15-7 Suppliers

Recommended suppliersmore

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

19508-15-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 19508-15-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,5,0 and 8 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 19508-15:
(7*1)+(6*9)+(5*5)+(4*0)+(3*8)+(2*1)+(1*5)=117
117 % 10 = 7
So 19508-15-7 is a valid CAS Registry Number.

19508-15-7Relevant articles and documents

A Convenient Synthesis of Unsaturated 2,4-Disubstituted 2-Imidazolin-5-ones

Devasia, Ganapathiplackal M.,Shafi, P. Mohamed

, p. 657 - 660 (2007/10/02)

Twenty five unsaturated 2,4-disubstituted 2-imidazolin-5-ones (IV) have been prepared in 23-71percent yields by condensing aromatic aldehydes with a mixture of ethyl chloroacetate and an aromatic amidinium chloride in the presence of sodium hydrogencarbonate.Twenty three of them have also been prepared in 62-97percent yields by this method using ethyl bromoacetate instaed of the chloroacetate.Further, two unsaturated 2-imidazolin-5-ones (IV) have been prepared by these two methods using cyclohexanone (yields 33percent each) and cinnamaldehyde (yields 0 and 18percent) instead of the aromatic aldehydes.

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 19508-15-7