Welcome to LookChem.com Sign In|Join Free

CAS

  • or

20916-31-8

Post Buying Request

20916-31-8 Suppliers

Recommended suppliersmore

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

20916-31-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20916-31-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,9,1 and 6 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 20916-31:
(7*2)+(6*0)+(5*9)+(4*1)+(3*6)+(2*3)+(1*1)=88
88 % 10 = 8
So 20916-31-8 is a valid CAS Registry Number.

20916-31-8Relevant articles and documents

2-Nitrophenoxyacetanilide: A chain of rings generated by C - H...O hydrogen bonds

Glidewell, Christopher,Low, John N.,Skakle, Janet M. S.,Wardell, James L.

, p. o290-o292 (2004)

The crystal structure of 2-Nitrophenoxyacetanilide with conformation dominated by an intramolecular N-H···O hydrogen bond having one of the nitro O atoms as acceptor was discussed. The molecules in these compounds were linked by paired C-H··· hydrogen bonds. The presence of two independent aryl groups offered the possibility of N-H···π(arene) and C- H···π(arene) hydrogen bonding together with aromatic π-π stacking interactions. The supramolecular aggregation was determined by two C-H··· hydrogen bonds, one weaker than the other.

A convenient preparation of N-alkyl and N-arylamines by smiles rearrangement - Synthesis of analogues of diclofenac

Wadia,Patil

, p. 2725 - 2736 (2007/10/03)

Smiles rearrangement of substituted aryloxyacetamides in which oxygen and nitrogen are separated by COCH2 group has been successful even when the aryloxy ring carries weak or no electron withdrawing group. Earlier reports of such reactions involved either strong electron withdrawing groups or a special catalyst. The diphenylamines thus obtained gave analogues of diclofenac in only one case.

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 20916-31-8