Welcome to LookChem.com Sign In|Join Free

CAS

  • or

52671-43-9

Post Buying Request

52671-43-9 Suppliers

Recommended suppliersmore

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

52671-43-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 52671-43-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,6,7 and 1 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 52671-43:
(7*5)+(6*2)+(5*6)+(4*7)+(3*1)+(2*4)+(1*3)=119
119 % 10 = 9
So 52671-43-9 is a valid CAS Registry Number.

52671-43-9Relevant articles and documents

A process for the preparation of intermediates the advantage cuts down Sha Ban

-

Paragraph 0055; 0056; 0057; 0058, (2016/10/10)

The invention discloses a synthetic method of rivaroxabanintermediate4-(4-nitrosobenzene)-3-morpholine. The method comprises steps as follows: (1), halogenated benzene (I) and ethanolamine react under the condition of a catalyst and alkali to generate N-ethoxylaniline (II), N-ethoxylaniline (II) and nitrous acid or nitrite react to generate 4-nitroso-N-ethoxylaniline (III), and 4-nitroso-N-ethoxylaniline (III) and chloroacetyl chloride react to generate 4-(4-nitrosobenzene)-3-morpholine (IV). According to the synthetic method of 4-(4-nitrosobenzene)-3-morpholine, required raw materials and reagents are cheap and are easy to obtain, the yield is high, and the cost is low; the reaction condition is mild; fewer three wastes are produced; and the product quality is reliable and stable, and the whole process is very suitable for industrial production.

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 52671-43-9