Welcome to LookChem.com Sign In|Join Free

CAS

  • or

403816-18-2

Post Buying Request

403816-18-2 Suppliers

Recommended suppliersmore

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

403816-18-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 403816-18-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,3,8,1 and 6 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 403816-18:
(8*4)+(7*0)+(6*3)+(5*8)+(4*1)+(3*6)+(2*1)+(1*8)=122
122 % 10 = 2
So 403816-18-2 is a valid CAS Registry Number.

403816-18-2Relevant articles and documents

Application of maleimide compound as chitin synthase inhibitor

-

Paragraph 0024-0027; 0116-0119, (2020/07/12)

The invention discloses an application of a maleimide compound as shown in a formula I. In the formula I, R0 is phenyl, benzyl, phenethyl, phenylpropyl, p-fluorophenyl, p-chlorophenyl, p-bromophenyl,p-methoxyphenyl, p-methylphenyl or p-hydroxyphenyl, R1 is hydrogen, methyl, phenyl or chlorine; and R2 is hydrogen, methyl, phenyl or chlorine. The provided maleimide compound has a good inhibition effect on chitin synthase.

A method for the production of primary amines

-

Paragraph 0200; 0201; 0310; 0311, (2016/10/09)

The invention relates to the field of chemical industry and particularly relates to a method for preparing primary amine by using the raw materials including halogenated hydrocarbon (or hydrocarbon alcohol sulfonate) and ammonia water (or formamide). The method comprises the following three steps: (1) imidization: 3,4-diarylfuran-2,5-diketone (I) reacts with ammonia (or formamide) and the like to obtain 3,4-diaryl-1H-pyrrole-2,5-diketone (II); (2) N-hydrocarbylation: 3,4-diaryl-1H-pyrrole-2,5-diketone (II) generates an N-hydrocarbylation reaction with halogenated hydrocarbon (or hydrocarbon alcohol sulfonate) in the presence of alkali to obtain N-hydrocarbyl-3,4-diaryl-1H-pyrrole-2,5-diketone (III); and (3) hydrolysis: N-hydrocarbyl-3,4-diaryl-1H-pyrrole-2,5-diketone (III) is subjected to alkali hydrolysis to obtain primary amine and the generated 2,3-diaryl maleate is subjected to acid treatment and automatic ring closing to form 3,4-diaryl furan-2,5-diketone (I) which is subjected to imidization and directly applied to the N-hydrocarbylation reaction. The method provided by the invention has the characteristics that the 3,4-diaryl furan-2,5-diketone can be circularly used at a high recovery rate, the molar ratio of the raw materials is low, and the yield of the product primary amine is high.

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 403816-18-2