Welcome to LookChem.com Sign In|Join Free

CAS

  • or

139356-40-4

Post Buying Request

139356-40-4 Suppliers

Recommended suppliersmore

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

139356-40-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139356-40-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,3,5 and 6 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 139356-40:
(8*1)+(7*3)+(6*9)+(5*3)+(4*5)+(3*6)+(2*4)+(1*0)=144
144 % 10 = 4
So 139356-40-4 is a valid CAS Registry Number.

139356-40-4Upstream product

139356-40-4Relevant articles and documents

Process for the synthesis of vitamin d compounds and intermediates for the synthesis of the compounds

-

Page/Page column 26, (2008/06/13)

An object of the present invention is to provide a process for synthesizing a vitamin D compound by simple procedures at lower costs. The present invention provides a process for preparing a vitamin D compound and an intermediate thereof, comprising the s

Novel synthesis of 19-nor-vitamin D compounds

Perlman, Kato L.,Swenson, Rolf E.,Paaren, Herbert E.,Schnoes, Heinrich K.,DeLuca, Hector F.

, p. 7663 - 7666 (2007/10/02)

1α,25-Dihydroxy-19-nor-vitamin D3 was prepared efficiently in a convergent synthesis starting with (-)-quinic acid and a ketone of the Windaus-Grundmann type.

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 139356-40-4