Antimony trisulfide is a chemical compound with the formula Sb2S3. It appears as a yellow to reddish powder and is primarily used in the production of fireworks, explosives, and safety matches. This compound is known for its ability to produce a bright flame when ignited, making it valuable in pyrotechnics. In addition to its use in fireworks, antimony trisulfide is also utilized in the manufacturing of certain types of glass and ceramics. It can act as a pigment and is sometimes found in batteries. However, handling this compound requires caution due to its potential toxicity.