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

20521-81-7

Post Buying Request

20521-81-7 Suppliers

Recommended suppliers

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

20521-81-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20521-81-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,5,2 and 1 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 20521-81:
(7*2)+(6*0)+(5*5)+(4*2)+(3*1)+(2*8)+(1*1)=67
67 % 10 = 7
So 20521-81-7 is a valid CAS Registry Number.

20521-81-7Relevant academic research and scientific papers

Metal-free hydrogenation of electron-poor allenes and alkenes

Ines, Blanca,Palomas, David,Holle, Sigrid,Steinberg, Sebastian,Nicasio, Juan A.,Alcarazo, Manuel

supporting information, p. 12367 - 12369 (2013/02/22)

The poorer, the better: A metal-free catalytic procedure for the reduction of electron-poor allenes and alkenes has been developed. The method employs a frustrated Lewis pair based catalyst. 1,4-Diazabicyclo[2.2.2]octane (DABCO)/B(C6F5)3 was shown to be the best combination in optimization studies. 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 Customer Service

What can I do for you?
Get Best Price

Get Best Price for 20521-81-7