Welcome to LookChem.com Sign In|Join Free

CAS

  • or

1005457-03-3

Post Buying Request

1005457-03-3 Suppliers

Recommended suppliersmore

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

1005457-03-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1005457-03-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,0,5,4,5 and 7 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1005457-03:
(9*1)+(8*0)+(7*0)+(6*5)+(5*4)+(4*5)+(3*7)+(2*0)+(1*3)=103
103 % 10 = 3
So 1005457-03-3 is a valid CAS Registry Number.

1005457-03-3Downstream Products

1005457-03-3Relevant articles and documents

Convenient one-pot synthesis of 2,2-bis-(4-hydroxyphenyl)-cyclopentanone

Jai, Woong Seo,Hee, Jun Kim,Byoung, Se Lee,Katzenellenbogen, John A.,Dae, Yoon Chi

, p. 715 - 718 (2008/09/18)

(Chemical Equation Presented) 2,2-Bis-(4-hydroxyphenyl)-cyclopentanone (3a) was unexpectedly obtained in 76% yield from a reductive coupling reaction of 4,4′-dihydroxybenzophenone (1a) and cyclobutanone with TiCl4 and Zn. Further optimization showed that catechol as an external ligand and a hydroxy group on benzophenone facilitated the generation of a quinonemethide (intermediate II) that is involved in the pinacol-type rearrangement of intermediate I to give the rearranged product.

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 1005457-03-3