Description

S-(3-Aminopropyl)Isothiourea Dihydrobromide is a high-purity organic salt compound, valued for its bifunctional reactivity as both an isothiourea and a primary amine. This makes it a versatile and critical building block in advanced organic synthesis and pharmaceutical research. It is primarily sought after by researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for developing novel compounds and active ingredients.

Application

• Pharmaceutical Intermediate: Key building block for synthesizing guanidine-containing compounds, which are prevalent in drug candidates for cardiovascular, antiviral, and neurological applications.
• Bioconjugation & Crosslinking Agent: Used in biochemical research to modify proteins, peptides, and other biomolecules due to its reactive amine and isothiourea groups.
• Agrochemical Synthesis: Intermediate in the production of herbicides, fungicides, and plant growth regulators that require a guanidine or thiourea moiety.
• Polymer Chemistry: Serves as a monomer or chain modifier for creating functional polymers with specific chemical handles for further modification.
• Chemical Research & Development: Essential reagent in academic and industrial R&D labs for exploring new synthetic pathways and creating novel chemical entities.
• Diagnostic Reagent Precursor: Used in the synthesis of components for diagnostic assays and imaging agents.

Basic Information

Product Name	S-(3-Aminopropyl)Isothiourea Dihydrobromide
CAS No.	7072-40-4
Molecular Formula	C4H11N3S · 2HBr
Molecular Weight	298.03 g/mol
Synonyms	3-Aminopropylisothiourea Dihydrobromide; S-(3-Aminopropyl)isothiouronium Dihydrobromide; 1-Amino-3-(isothioureido)propane Dihydrobromide; 3-Isothioureidopropylamine Dihydrobromide; APIT Dihydrobromide; (3-Aminopropyl)isothiourea Hydrobromide (1:2); NSC 172112
EINECS	Contact for details

Quality Control

Our S-(3-Aminopropyl)Isothiourea Dihydrobromide is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC for purity, IR and NMR for identification, and tests for residual solvents and heavy metals, to ensure it meets exacting standards for research and production. A Certificate of Analysis (COA) with detailed specifications is provided with each shipment to guarantee traceability, consistency, and reliability.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which can affect stability and performance.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Heavy Metals	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines

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