ATZ Labs - a subsidiary of Life Technologies (India) Pvt. Ltd.
Life Technologies India
PhytoTechnology Laboratories

Cephalexin Solution (100 mg/mL)
Product ID: C2112

Introduction

Description: An aqueous solution of Cephalexin at 100 milligrams per milliliter that is sterile filtered.

Cephalexin is a beta-lactam antibiotic with activity against most gram-positive bacteria. Cephalexin acts by binding to specific penicillin-binding proteins (PBPs) inside the bacterial cell wall. It inhibits the last phase of cell wall synthesis, causing the eventual lysis of the bacterial cell.

This antibiotic is used with XTS Medium (X8454) and PhytoSelect Medium (P6800) for the isolation of: Xanthomonas translucens from barley and wheat seeds during seed testing, Xanthomonas campestris from Brassicas, and other plant pathogens.

See Product Information Sheet for details.
Synonym: Cefalexin

Grade USP
Use With P6800 - PhytoSelect Basal Medium; X8454 - XTS Medium
Miscibility Water
Physical Form Liquid
Powder  Form C1970
Concentration 100 mg/mL
Sterility Sterile Filtered
Storage Temp. -20 to 0 °C
UPC / SKU C2112
CAS NUMBER 15686-71-2
Formula Weight 347.40 (anhydrous)
Formula C16H17N3O4S
Synonyms Cefalexin
Additional Charge Dry Ice ($15)
Special Packaging Dry Ice ($15)
Storage Temp. -20 to 0C
Tariff Code 2941.90.3000
Risk Info (R) 42/43
Safety Info (S) 22-24/25
No information available

C2112 Cephalexin Solution, 100 mg/mL in DMSO

Synonym: Cefalexin, Cephalexin, Cephalexin hydrate
CAS: 23325-78-2
Formula: C16H17N3O4S*H2O
Molecular Wt: 365.4 g/mol
Properties
Form: Liquid
Appearance: Clear, Colorless
Application: Antimicrobial
Solubility: Miscible with Water
Storage Temp: -20-0°C
Typical Working Concentration: Varies with application, should be determined by end user

Application Notes
Cephalexin is a beta-lactam antibiotic with activity against most gram-positive bacteria. Cephalexin acts by binding to specific penicillin-binding proteins (PBPs) inside the bacterial cell wall. It inhibits the last phase of cell wall synthesis, causing the eventual lysis of the bacterial cell

Used with PhytoSelect Basal Medium (Prod# P6800) in combination with other antimicrobials (see tabel below) to select for Xanthomonas campestris. Also recommended in the International Seed Testing Association’s (ISTA) Rules for Seed Testing in method 7-019 to test for Xanthomonas campestris pv. campestris on Brassica spp. (ISTA 2011).

Combine the following products to make 1L of SMART-Xca medium for Xanthomonas campestris (Kawanishi et al. 2011):

References
ISTA (2011) Annexe to Chapter 7: Seed Health Methods. Kawanishi T, T. Shiraishi, Y. Okano, K. Sugawara, M. Hashimoto, K Maejima, K Komatsu, S Kakizawa, Y Yamaji, H Hamamoto, K Oshima, S Namba (2011) New Detection Systems of Bacteria Using Highly Selective Media Designed by SMART: Selective Medium-Design Algorithm Restricted by Two Constraints. PLoS ONE Volume 6, Issue 1.

Prod # Name of Component: Amount to add to make 1L
P6800 PhytoSelect Basal Medium: 1L (24.927 g)
G503 Glycine: 1.0 g
*C1989 OR *C1796 Cycloheximide: 50 mg OR Cycoheximide Soln (100 mg/mL) – add 0.50 mL
*P777 Penicillin G: 10 mg
*C1970 OR *C2112 Cephalexin: 10 mg OR Cephalexin Soln (100 mg/mL) – add 0.10 mL

*All antibiotic powders or solutions should be aseptically added to the medium after autoclaving and allowing to cool