Welcome to LookChem.com Sign In|Join Free

CAS

  • or

93639-13-5

Post Buying Request

93639-13-5 Suppliers

Recommended suppliersmore

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

93639-13-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 93639-13-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,6,3 and 9 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 93639-13:
(7*9)+(6*3)+(5*6)+(4*3)+(3*9)+(2*1)+(1*3)=155
155 % 10 = 5
So 93639-13-5 is a valid CAS Registry Number.

93639-13-5Relevant articles and documents

Rapid and efficient synthesis of high-purity fluorine-18 labeled haloperidol and spiperone via the nitro precursor in combination with a new HPLC separation method

Hashizume, Kazunari,Hashimoto, Naoto,Miyake, Yoshihiro

, p. 681 - 687 (1997)

We have completed a convenient synthesis of fluorine-18 labeled butyrophenone neuroleptics from their nitro precursors. Thus, we have developed an efficient single-columm HPLC system using a C18-bonded vinyl alcohol copolymer gel (octadecyl polymer, ODP) column and strongly alkaline solvent systems for purifying of the 18F-labeled butyrophenone neuroleptics obtained by a single-stp 18F-for-nitro exchange reaction. The method has been applied to the synthesis of two typical butyrophenone neuroleptics ([18F]haloperidol and [18F]spiperone) with high purity in high yield. With information concerning the optimized conditions for the 18F-for-nitro exchange reaction, the synthetic method would be useful for synthesizing various 18F-labeled compounds.

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 93639-13-5