Welcome to LookChem.com Sign In|Join Free

CAS

  • or

883970-40-9

Post Buying Request

883970-40-9 Suppliers

Recommended suppliersmore

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

883970-40-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 883970-40-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,8,3,9,7 and 0 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 883970-40:
(8*8)+(7*8)+(6*3)+(5*9)+(4*7)+(3*0)+(2*4)+(1*0)=219
219 % 10 = 9
So 883970-40-9 is a valid CAS Registry Number.

883970-40-9Relevant articles and documents

Hexa-peri-hexabenzocoronenes by efficient oxidative cyclodehydrogenation: The role of the oligophenylene precursors

Feng, Xinliang,Wu, Jishan,Enkelmann, Volk,Muellen, Klaus

, p. 1145 - 1148 (2007/10/03)

Oligophenylene precursors based on 1,3,5-tris-(2′-biphenyl)ylbenzene (4a) and 1,4-bis-(2′-biphenyl)yl-2,5-diphenylbenzene (5a) were prepared and utilized for efficient hexabenzocoronene (HBC) synthesis by cyclodehydrogenations. Parent HBC 6a was efficiently synthesized from the 1,3,5-tris-(2′-biphenyl)ylbenzene precursor, and novel D3h symmetrical HBCs were prepared from 1,3,5-tris-(2′-biphenyl)ylbenzenes with various substitution types. For the preparation of a tert-butyl containing HBC 7 with D2h symmetry, a two-step cyclodehydrogenation was required because of changes in the spin density distribution.

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 883970-40-9