Welcome to LookChem.com Sign In|Join Free

CAS

  • or

1987-40-2

Post Buying Request

1987-40-2 Suppliers

Recommended suppliersmore

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

1987-40-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1987-40-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,9,8 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1987-40:
(6*1)+(5*9)+(4*8)+(3*7)+(2*4)+(1*0)=112
112 % 10 = 2
So 1987-40-2 is a valid CAS Registry Number.

1987-40-2Relevant articles and documents

Effective, high-yielding, and stereospecific total synthesis of D-erythro-(2R,3S)-sphingosine from D-ribo-(2S,3S,4R)-phytosphingosine

Van Den Berg, Richard J. B. H. N.,Korevaar, Cornelius G. N.,Overkleeft, Herman S.,Van Der Marel, Gijsbert A.,Van Boom, Jacques H.

, p. 5699 - 5704 (2007/10/03)

The synthesis of naturally occurring D-erythro-(2R,3S,4E)-sphingosine from commercially available D-ribo-(2S,3S,4R)-phytosphingosine is described. The key step in the reaction sequence comprises TMSI/DBN promoted regio- and stereoselective oxirane opening of intermediate 2-phenyl-4-(S)-[(1S,2S)-1,2- epoxyhexadecyl]-1,3-oxazoline followed by the in situ trans-elimination of 2-phenyl-4-(S)-[(1S,2R)-1,2-dideoxy-2-iodo-1-trimethylsilyloxyhexadecyl]-1, 3-oxazoline.

Process for the synthesis of sphingosine

-

, (2008/06/13)

This invention relates to a method for the production of a sphingoid base according to formula comprising the steps of (1) dissolving a starting compound according to formula III or a salt thereof in a substantially inert solvent, (2) protecting the NHsu

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 1987-40-2