Welcome to LookChem.com Sign In|Join Free

CAS

  • or

121721-05-9

Post Buying Request

121721-05-9 Suppliers

Recommended suppliersmore

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

121721-05-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121721-05-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,7,2 and 1 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 121721-05:
(8*1)+(7*2)+(6*1)+(5*7)+(4*2)+(3*1)+(2*0)+(1*5)=79
79 % 10 = 9
So 121721-05-9 is a valid CAS Registry Number.

121721-05-9Downstream Products

121721-05-9Relevant articles and documents

Intramolecular Cycloaddition of Azoalkenes Derived from Allylic β-Keto Esters

Gilchrist, Thomas L.,Romero, Oscar A. Sanchez,Wasson, Robert C.

, p. 353 - 359 (2007/10/02)

The 2,4-dinitrophenylhydrazone (2a) of allyl 2-chloroacetoacetate has been prepared and converted into the azoalkene (4a) by reaction with sodium carbonate.The azoalkene undergoes an intramolecular Diels-Alder reaction when heated under reflux in toluene

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 121721-05-9