Description

S-Methylisothiourea Sulfate is a high-purity organic sulfate salt widely used as a key intermediate in pharmaceutical synthesis and biochemical research. Its primary value lies in its role as a versatile building block for creating more complex molecules, particularly guanidine derivatives. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and life science industries who require a reliable and consistent source of this critical intermediate.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of various active pharmaceutical ingredients (APIs), particularly those containing guanidine or amidine functional groups.
• Biochemical Research: Used as a reagent in enzymatic studies and for modifying proteins or nucleic acids.
• Agrochemical Synthesis: Serves as a building block for developing certain classes of herbicides, fungicides, and plant growth regulators.
• Organic Synthesis: Employed as a versatile reagent for introducing the S-methylisothiourea moiety into target molecules.
• Chemical Biology: Utilized in probe development and for studying biological pathways involving arginine metabolism or nitric oxide synthase.

Basic Information

Product Name	S-Methylisothiourea Sulfate
CAS No.	2260-00-6
Molecular Formula	C2H8N2O4S2
Molecular Weight	188.22 g/mol
Synonyms	S-Methylisothiouronium Sulfate; Methylisothiourea Hemisulfate; 2-Methyl-2-thiopseudourea Sulfate; Isothiourea, S-methyl-, sulfate (1:1); Thiourea, S-methyl-, sulfate (1:1); NSC 112907; Methylisothiourea Sulfate Salt
EINECS	218-852-5

Quality Control

Our S-Methylisothiourea Sulfate is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, impurity profile, and physical characteristics. Our quality commitment aligns with cGMP principles where applicable, supporting its use in regulated synthesis pathways.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at 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 product stability and performance.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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