Welcome to LookChem.com Sign In|Join Free
  • or
(S)-3-((R)-3-Methyl-cyclopent-3-enyl)-butyric acid (1R,2R)-2-hydroxy-cyclohexyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

138644-17-4

Post Buying Request

138644-17-4 Suppliers

Recommended suppliers

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

138644-17-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138644-17-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,6,4 and 4 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 138644-17:
(8*1)+(7*3)+(6*8)+(5*6)+(4*4)+(3*4)+(2*1)+(1*7)=144
144 % 10 = 4
So 138644-17-4 is a valid CAS Registry Number.

138644-17-4Downstream Products

138644-17-4Relevant academic research and scientific papers

An Insight into the Novel Ring Transformation Reactions Using Ethylene Glycol/BF3

Yamamoto, Takayoshi,Suemune, Hiroshi,Sakai, Kiyoshi

, p. 8523 - 8528 (1991)

The ring transformation of cyclic ketones with a carbonyl function at the side chain under acetalization conditions (BF3/ethylene glycol) was studied.The results suggested that this reaction proceeds via acetal pathway as a major course and hemiacetal pathway as a minor course. cis-Cyclohexane-1,2-diol was found to be more effective than ethylene glycol for this ring transformation. Key words: ring transformation; aldol condensation; acetalization; Grob fragmentation; boron trifluoride.

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 Customer Service

What can I do for you?
Get Best Price

Get Best Price for 138644-17-4