CAS 62-55-5 corresponds to Thioacetamide, which is an organic sulfur compound commonly used as a mild sulfurization reagent and metal precipitant in laboratories. It belongs to Class 2B of possible carcinogens.

Core Basic Information
-Chinese name: Thioacetamide (alias: Acetamide)
-English name: Thioacetamide (TAA)
-Molecular formula: C ₂ H ₅ NS/CH ∝ CSNH ₂
-Molecular weight: 75.13
-EINECS number: 200-541-4
-Appearance: Colorless or white crystals/powder, new products have a slight thiol odor
-Melting point: 108-114 ℃
-Solubility: Easily soluble in water (16.3 g/100 mL, 25 ℃) and ethanol; Extremely soluble in benzene and ether

Main chemical properties and applications
1. Hydrolysis characteristics: Under acidic conditions, hydrogen sulfide (H ₂ S) is hydrolyzed, and under alkaline conditions, sulfur ions (S ² ⁻/HS ⁻) are generated, which can replace toxic H ₂ S gas for metal sulfide precipitation.
2. Application areas: Group reagents in analytical chemistry, organic synthesis intermediates, polymer vulcanizing/crosslinking agents, electroplating additives, pesticide and pharmaceutical raw material production.
3. Preparation method: It is mainly prepared by the reaction of acetonitrile with hydrogen sulfide, or the reaction of acetamide with phosphorus pentasulfide.

Safety and Toxicity Warning
-Carcinogenicity: Listed as a Group 2B carcinogen by IARC (possibly carcinogenic to humans), animal experiments have shown that long-term exposure can cause liver damage.
-Acute toxicity: Harmful if swallowed (R22/H302), oral LD ₅₀ in rats is about 200 mg/kg.
-Stimulating effect: It has a stimulating effect on the eyes, skin, and respiratory tract.
-Environmental hazards: Toxic to aquatic organisms and may have long-term adverse effects. Random discharge is strictly prohibited.
-Operation specifications: It is necessary to operate in a fume hood, wear protective equipment, and follow the safety instructions of S45/S53/S61.

Products :

CAS 62-55-5 Thioacetamide
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