Welcome to LookChem.com Sign In|Join Free

CAS

  • or

143391-67-7

Post Buying Request

143391-67-7 Suppliers

Recommended suppliersmore

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

143391-67-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 143391-67-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,3,9 and 1 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 143391-67:
(8*1)+(7*4)+(6*3)+(5*3)+(4*9)+(3*1)+(2*6)+(1*7)=127
127 % 10 = 7
So 143391-67-7 is a valid CAS Registry Number.

143391-67-7Relevant articles and documents

SYNTHESIS OF ESTERS OF ENOLS OF β-TRIKETONES OF THE CYCLOHEXANE SERIES

Rubinov, D. B.,Rubinova, I. L.,Lakhvich, F. A.

, p. 79 - 87 (2007/10/02)

2-Acyl 3-acyloxy-2-cyclohexen-1-ones were obtained in 50-90percent yields by acylation of the sodium salts of 2-acylcyclohexane-1,3-diones in acetone with acid chlorides.In contrast to enol ethers, endocyclic monoenol acylates react with amines to give enamino derivatives involving the exocyclic keto group.A simple method for the transformation of cyclohexane β-triketones to γ-pyrone derivatives by their reaction with aliphatic anhydrides in the presence of sodium salts of the corresponding acids is proposed.

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 143391-67-7