Description

Tagetitoxin CAS NO 87913-21-1 is a potent, naturally occurring RNA polymerase inhibitor derived from *Pseudomonas syringae*. This compound matters for its highly specific mechanism of action, selectively inhibiting chloroplast and mitochondrial RNA polymerases in plants, making it a critical tool for plant molecular biology research. It is primarily needed by researchers in agricultural biotechnology, plant pathology, and biochemistry for studying transcription, organelle gene expression, and developing novel plant protection strategies.

Application

• Plant Molecular Biology Research: A fundamental tool for studying chloroplast and mitochondrial transcription mechanisms and gene regulation.
• Agricultural Biotechnology: Used in research to understand plant responses to biotic stress and to identify potential targets for novel herbicides or plant defense activators.
• Plant Physiology Studies: Employed to investigate the role of organellar gene expression in photosynthesis, development, and metabolic pathways.
• Biochemical Assay Development: Serves as a specific inhibitor in enzymatic assays to characterize RNA polymerase activity and screen for complementary compounds.
• Phytopathology Research: Used to model the action of bacterial toxins and study host-pathogen interactions at the transcriptional level.

Basic Information

Product Name	Tagetitoxin
CAS No.	87913-21-1
Molecular Formula	C22H31NO10S
Molecular Weight	501.55 g/mol
Synonyms	Tagetitoxin; Tagetitoxin from Pseudomonas syringae; RNA Polymerase Inhibitor Tagetitoxin; NSC 348128; Pseudomonas toxin Tagetitoxin; Chloroplast Transcription Inhibitor
EINECS	Contact for details

Quality Control

Our Tagetitoxin is produced and handled under strict quality protocols to ensure high purity and batch-to-batch consistency for research applications. Each lot undergoes comprehensive analytical testing including HPLC for purity, NMR for structural confirmation, and mass spectrometry. A detailed Certificate of Analysis (COA) documenting identity, purity, and potency is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store at -20°C or below in a dedicated freezer. This product is hygroscopic (moisture-sensitive). Allow the vial to equilibrate to room temperature in a dry environment before opening to minimize moisture uptake.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (HPLC)	Conforms to reference standard
Identification (MS)	Conforms to structure
Purity (HPLC)	≥ 95%
Water Content (KF)	≤ 2.0%
Potency (Bioassay)	Reported per COA

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.