Welcome to LookChem.com Sign In|Join Free

CAS

  • or

64820-66-2

Post Buying Request

64820-66-2 Suppliers

Recommended suppliersmore

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

64820-66-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 64820-66-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,8,2 and 0 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 64820-66:
(7*6)+(6*4)+(5*8)+(4*2)+(3*0)+(2*6)+(1*6)=132
132 % 10 = 2
So 64820-66-2 is a valid CAS Registry Number.

64820-66-2Downstream Products

64820-66-2Relevant articles and documents

Ureas in Organic Synthesis. XII. Syntesis of 2-Amino-5-chlorobenzhydrylureas and Their Heterocyclization

Bakibaev,Shtrykova,Vostretsov

, p. 457 - 459 (2007/10/03)

A synthetic method was developed for hard-to-get biologically active 2-amino-5-chlorobenzhydrylureas based on reaction of the corresponding benzhydrols with urea in sulfuric acid. The 2-amino-5-chlorobenzhydrylureas were shown to easily undergo on heating cyclization to 1-R-1,2,3,4-tetrahydro-4-phenyl-chloroquinazolin-2-ones.

SYNTHESIS OF QUINAZOLINES

Bergman, Jan,Brynolf, Anna,Elman, Bjoern,Vuorinen, Eino

, p. 3697 - 3706 (2007/10/02)

Grignard reagents reacted with 2-aminobenzonitrile to give the intermediate (10), which readily could be cyclized to quinazolines by reaction with carbonyl compounds (e.g. acid chlorides, anhydrides, formates and oxalates).The intermediate (10) and aldehy

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 64820-66-2