Welcome to LookChem.com Sign In|Join Free

CAS

  • or

13722-20-8

Post Buying Request

13722-20-8 Suppliers

Recommended suppliersmore

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

13722-20-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 13722-20-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,7,2 and 2 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 13722-20:
(7*1)+(6*3)+(5*7)+(4*2)+(3*2)+(2*2)+(1*0)=78
78 % 10 = 8
So 13722-20-8 is a valid CAS Registry Number.

13722-20-8Downstream Products

13722-20-8Relevant articles and documents

Preparation, crystal structure and thermal decomposition study of some trimethylsilyl esters of dicarbamic acids

Szalay,Boecskei,Knausz,Lovasz,Ujszaszy,Szakacs,Sohar

, p. 93 - 102 (1996)

Some new trimethylsilylated dicarbamic acid esters 1-9 and 10 were prepared. Their thermal decomposition was studied in n-alkanes as media. The reactions were monitored by gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS), respectively. Some N-silylated cyclic ureas 11-15 were also prepared from the corresponding esters 2-6 by thermolysis. The crystal structures of 2, 5 and 8 are also discussed. The crystal and molecular structures of 2 and 5 have very similar characteristics. Both molecules are sited via their molecular centre of symmetry on crystallographic inversion centres. The carbamate groups are planar in all three cases as expected. An analysis of the data showed that the force due to Si-O conjugation which constrains the Si atom into the plane of the carbamate group is comparable to the crystal packing forces with a small out-of-plane movement being not unfavourable.

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 13722-20-8