Welcome to LookChem.com Sign In|Join Free

CAS

  • or

221381-12-0

Post Buying Request

221381-12-0 Suppliers

Recommended suppliersmore

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

221381-12-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 221381-12-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,3,8 and 1 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 221381-12:
(8*2)+(7*2)+(6*1)+(5*3)+(4*8)+(3*1)+(2*1)+(1*2)=90
90 % 10 = 0
So 221381-12-0 is a valid CAS Registry Number.

221381-12-0Upstream product

221381-12-0Relevant articles and documents

Total synthesis of brevetoxin A: Part 3: Construction of GHIJ and BCDE ring systems

Nicolaou,Shi, Guo-Qiang,Gunzner, Janet L.,Gaertner, Peter,Wallace, Paul A.,Ouellette, Michael A.,Shi, Shuhao,Bunnage, Mark E.,Agrios, Konstantinos A.,Veale, Chris A.,Hwang, Chan-Kou,Hutchinson, John,Prasad,Ogilvie, William W.,Yang, Zhen

, p. 628 - 645 (2007/10/03)

Successful syntheses of highly complex intermediates 2 (GHIJ ring system) and 3 (BCDE ring system) for the total synthesis of brevetoxin A (1) are described. Several of our methodologies were utilized to achieve this goal: i) hydroxy epoxide cyclizations

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 221381-12-0