Welcome to LookChem.com Sign In|Join Free
  • or
(2-methylpropyl)lithium is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

90269-51-5

Post Buying Request

90269-51-5 Suppliers

Recommended suppliers

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

90269-51-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90269-51-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,2,6 and 9 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 90269-51:
(7*9)+(6*0)+(5*2)+(4*6)+(3*9)+(2*5)+(1*1)=135
135 % 10 = 5
So 90269-51-5 is a valid CAS Registry Number.

90269-51-5Relevant academic research and scientific papers

Crystalline 10,10-Bis((2-fluoro-4-pyridinyl)methyl)-9(10H)-Anthracenone and an improved process for preparing the same

-

, (2008/06/13)

The present invention relates to processes for the synthesis of a crystalline polymorph of 10,10-Bis((2-fluoro-4-pyridinyl)methyl)-9(10H)-Anthracenone in high purity. The product is useful in the synthesis of pharmaceutical compounds for the reduction of cholinergic system dysfunction.

Convergent synthesis of alpha -aryl- beta -ketonitriles

-

, (2008/06/13)

The present invention relates to processes for the production of alpha -aryl- beta -ketonitriles, which serve as synthetic intermediates in the preparation of a series of biologically important molecules such as corticotropin releasing factor (CRF) receptor antagonists.

NMR spectra of a hydrocarbon-soluble organosodium compound and its lithium analogs

Pakuro,Arest-Yakubovich,Shcheglova,Petrovsky,Chekulaeva

, p. 838 - 840 (2007/10/03)

1H, 23Na, and 7Li NMR spectra of 2-ethylhexylsodium, 2-ethylhexyllithium, and isobutyllithium obtained in the reaction of the corresponding alkyl chlorides and metals have been recorded. The 1H NMR signal for the protons of the CH2Na group is shifted upfield compared with that for the protons of the CH2Li group (doublets at δ -0.88 and δ -0.83, respectively). The composition of the products of reaction of 2-ethylhexyl chloride with sodium depends on the form of the metal reagent employed. The use of sodium balls with diameter up to 2 mm results in the formation of products containing ionic chlorine (30-50 % with respect to Na); the reaction with the dispersion proceeds faster and the reaction product is chlorine-free. The 23Na NMR spectra of these substances are also different, which is explained by the formation of 2-ethylhexylsodium complexes with NaCl in the former 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 Customer Service

What can I do for you?
Get Best Price

Get Best Price for 90269-51-5