Welcome to LookChem.com Sign In|Join Free

CAS

  • or

49661-20-3

Post Buying Request

49661-20-3 Suppliers

Recommended suppliersmore

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

49661-20-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 49661-20-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,9,6,6 and 1 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 49661-20:
(7*4)+(6*9)+(5*6)+(4*6)+(3*1)+(2*2)+(1*0)=143
143 % 10 = 3
So 49661-20-3 is a valid CAS Registry Number.

49661-20-3Relevant articles and documents

Rhodium-catalyzed ortho acylation of aromatic carboxylic acids

Mamone, Patrizia,Danoun, Gregory,Goossen, Lukas J.

, p. 6704 - 6708 (2013)

New directions: The carboxylic acid functional group directs the ortho acylation of benzoic acids with carboxylic anhydrides in the presence of a rhodium catalyst (see scheme; cod=cyclo-1,5-octadiene). The acylation at the ortho position is complementary to the meta selectivity of Friedel-Crafts reactions. The resulting products can undergo protodecarboxylation to deliver an aryl ketone. Copyright

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 49661-20-3