Welcome to LookChem.com Sign In|Join Free

CAS

  • or

42766-42-7

Post Buying Request

42766-42-7 Suppliers

Recommended suppliersmore

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

42766-42-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 42766-42-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,7,6 and 6 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 42766-42:
(7*4)+(6*2)+(5*7)+(4*6)+(3*6)+(2*4)+(1*2)=127
127 % 10 = 7
So 42766-42-7 is a valid CAS Registry Number.

42766-42-7Downstream Products

42766-42-7Relevant articles and documents

Dediazoniations of Arenediazonium Ions. Part 25. Influence of Substituents on the Exchange of the Diazonio Group for External Molecular Nitrogen and on the N(α),N(β)-Rearrangement in the Diazonio Group.

Ravenscroft, Michael D.,Zollinger, Heinrich

, p. 507 - 514 (2007/10/02)

The N(α), N(β)-rearrangement of the two N-atoms which can be observed in solutions of -labelled p-substituted benzenediazonium ions follows dual substituent parameter treatments.The reaction yields a negative field and positive resonance reaction constant (ρF = -3.35, ρR = 2.47).The magnitude of these constants is, within experimental error, the same as the respective reaction constants for solvolytic dediazonation.The exchange of the diazonio group of 15N-labelled p-substituted benzenediazonium ion yields, however, field and resonance reaction constants for the forward and reverse steps in the complex mechanism of the exchange reaction.

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 42766-42-7