Welcome to LookChem.com Sign In|Join Free

CAS

  • or

135204-38-5

Post Buying Request

135204-38-5 Suppliers

Recommended suppliersmore

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

135204-38-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 135204-38-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,2,0 and 4 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 135204-38:
(8*1)+(7*3)+(6*5)+(5*2)+(4*0)+(3*4)+(2*3)+(1*8)=95
95 % 10 = 5
So 135204-38-5 is a valid CAS Registry Number.

135204-38-5Relevant articles and documents

Direct Conversion of (1S,2S)-2-Amino-1--1,3-propanediol into Its Enantiomer for Efficient Synthesis of Thiamphenicol and Florfenicol

Giordano, Claudio,Cavicchioli, Silvia,Levi, Silvio,Villa, Marco

, p. 6114 - 6118 (1991)

The usual synthesis of thiamphenicol and florfenicol involves the resolution of racemic threo-2-amino-1--1,3-propanediol into its 1S,2S and 1R,2R isomers ((+)-3 and (-)-3), of which only the latter is a useful precursor.An efficient conversion of the 1S,2S isomer into the 1R,2R enantiomer in high yield, is described.

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 135204-38-5