Welcome to LookChem.com Sign In|Join Free

CAS

  • or

1438251-51-4

Post Buying Request

1438251-51-4 Suppliers

Recommended suppliersmore

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

1438251-51-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1438251-51-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,3,8,2,5 and 1 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1438251-51:
(9*1)+(8*4)+(7*3)+(6*8)+(5*2)+(4*5)+(3*1)+(2*5)+(1*1)=154
154 % 10 = 4
So 1438251-51-4 is a valid CAS Registry Number.

1438251-51-4Relevant articles and documents

Efficient two-step access to azafluorenones and related compounds

Marquise, Nada,Harford, Philip J.,Chevallier, Floris,Roisnel, Thierry,Wheatley, Andrew E.H.,Gros, Philippe C.,Mongin, Florence

, p. 3154 - 3157 (2013/06/27)

Crystals of a lithiocuprate prepared from copper(I) chloride and lithium 2,2,6,6-tetramethylpiperidide (2 equiv) were isolated and analyzed by X-ray diffraction as (TMP)2Cu(Cl)Li2·THF. The observation of this species is consistent with its having a role in deprotocupration- aroylation. Phenyl pyridyl ketones, phenyl quinolyl ketones, and phenyl thienyl ketones were prepared in tetrahydrofuran using the lithiocuprate and aroyl chorides as electrophiles. Diaryl ketones bearing a chloro group at the 2 position (of a pyridyl or phenyl group) thus synthesized were next converted through palladium-catalyzed ring closure to polycycles of the 5H-indeno[1,2-b]pyridin-5-one, 11H-indeno[1,2-b]quinolin-11-one, 9H-indeno[2,1-c]pyridin-9-one, and 8H-indeno[2,1-b]thiophen-8-one families.

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 1438251-51-4