Description

Selenium Sulfide is an inorganic compound primarily recognized for its potent anti-fungal and anti-seborrheic properties. This makes it a critical active ingredient in the formulation of medicated shampoos and topical treatments for dandruff and certain skin conditions. Its efficacy and stability under proper formulation are key value drivers for manufacturers in the personal care and pharmaceutical sectors. Industrial users also value this compound for its role in specific catalytic and electronic applications.

Application

• Active Pharmaceutical Ingredient (API): Primary use in medicated anti-dandruff shampoos and lotions for the treatment of seborrheic dermatitis and tinea versicolor.
• Personal Care & Cosmetics: Key component in over-the-counter (OTC) dandruff control products, including creams, foams, and soaps.
• Veterinary Pharmaceuticals: Used in topical formulations for the treatment of fungal skin infections in animals.
• Industrial Catalyst: Employed in specific organic synthesis reactions and dehydrogenation processes.
• Electronic Materials: Investigational use in the synthesis of certain semiconductor and photovoltaic materials.
• Research & Development: Serves as a chemical reagent in academic and industrial laboratories for material science and synthetic chemistry studies.

Basic Information

Product Name	Selenium Sulfide
CAS No.	75926-28-2
Molecular Formula	SeS2 (commonly represented, though polymeric forms exist)
Molecular Weight	143.09 g/mol (for SeS2)
Synonyms	Selenium Disulfide; Selenium(IV) Sulfide; Selsun (common trade name basis); Selenious Sulfide; Selenium Sulphide; SeS2; 1,2,3,4,5-Pentathiepane, 6-selena- (IUPAC); CAS 75926-28-2
EINECS	Contact for details

Quality Control

Our Selenium Sulfide is manufactured and tested to meet stringent quality standards suitable for pharmaceutical and personal care applications. We adhere to current Good Manufacturing Practices (cGMP) and can supply material compliant with relevant pharmacopoeial monographs (e.g., USP, BP, EP) upon request. Every batch is supported by a comprehensive Certificate of Analysis (COA) detailing purity, impurity profiles, and physical specifications to ensure batch-to-batch consistency and regulatory compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from heat, open flames, and incompatible materials. Due to its light-sensitive nature, containers should be opaque or stored in dark conditions.

Specification

Item	Specification
Appearance	Bright orange to red-brown powder
Identification (IR)	Conforms
Assay (Selenium as Se)	45.0% - 55.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 1.0%
Selenium Dioxide (SeO2)	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Arsenic (As)	≤ 3 ppm
Microbial Limits	Meets USP <61> and <62> (for applicable grades)

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