Welcome to LookChem.com Sign In|Join Free

CAS

  • or

19945-21-2

Post Buying Request

19945-21-2 Suppliers

Recommended suppliersmore

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

19945-21-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 19945-21-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,9,4 and 5 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 19945-21:
(7*1)+(6*9)+(5*9)+(4*4)+(3*5)+(2*2)+(1*1)=142
142 % 10 = 2
So 19945-21-2 is a valid CAS Registry Number.

19945-21-2Relevant articles and documents

Selective phosphorylation of diols with a Lewis acid catalyst

Coppola, Kyle A.,Testa, Joseph W.,Allen, Emily E.,Sculimbrene, Bianca R.

supporting information, p. 4203 - 4206 (2014/07/22)

We report a method for the Lewis acid catalyzed phosphorylation of diols with pyrophosphates. Titanium alkoxides were found to be effective catalysts in the selective mono-phosphorylation for a range of diols. Diols of varying chain lengths and substituents were screened, to study the factors that influence mono- versus di-phosphorylation. It was discovered that 2-alkyl-2-amino-1,3- propanediols can be selectively mono-phosphorylated in up to 97% isolated yield. This structural core is mono-phosphorylated in numerous immunomodulating compounds including the FDA-approved drug, FTY720.

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 19945-21-2