Welcome to LookChem.com Sign In|Join Free

CAS

  • or

71578-23-9

Post Buying Request

71578-23-9 Suppliers

Recommended suppliersmore

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

71578-23-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 71578-23-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,5,7 and 8 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 71578-23:
(7*7)+(6*1)+(5*5)+(4*7)+(3*8)+(2*2)+(1*3)=139
139 % 10 = 9
So 71578-23-9 is a valid CAS Registry Number.

71578-23-9Upstream product

71578-23-9Relevant articles and documents

SYNTHESIS AND REACTIONS OF 2-NAPHTHYLTELLURIUM TRICHLORIDE

Bergman, Jan,Engman, Lars

, p. 1275 - 1276 (1980)

TeCl4 and naphtalene, when heated to 110 deg C in the abscence of a solvent, yielded 2-naphtyltellurium trichloride (2), which on treatment with degassed Raney Ni afforded 2,2'-binaphthyl in excellent yield.Reaction of 2 with propene and cis-2-butene produced the corresponding 1:1 adducts, which however could not be coupled to 2-(2-chloroalkyl)naphthalenes with this reagent.

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 71578-23-9