Sulfur Alcohol CAS 75-08-1

 Ethyl Mercaptan (CAS 75-08-1) Product Introduction Ethyl Mercaptan, CAS registry number 75-08-1, is a clear, highly evaporable organosulfur liquid carrying a sharp, repulsive rotten vegetable scent that human noses can detect at minimal trace levels. Recognized as an irreplaceable safety additive for the energy sector, this thiol compound is widely incorporated into odor-free LPG, natural gas and pipeline fuel to create distinct warning aromas for timely leakage identification, thanks to its ultra-low olfactory perception limit. Apart from gas odorization applications, the active sulfhydryl functional group on its molecular chain grants strong chemical reactivity, making it a fundamental raw material for producing crop protection agents, medical chemical intermediates, rubber processing regulators and diverse organic sulfur derivatives. Given its high flammability rating, aquatic environmental hazard and potent penetrating smell, strict standardized operating procedures are required during its storage, bulk transportation and industrial blending processes to eliminate safety risks and avoid odor contamination.

Classified as a low-molecular aliphatic thiol, Ethyl Mercaptan CAS 75-08-1 stands out as a high-sensitivity gas alert reagent with an overpowering, instantly distinguishable rotten-cabbage stench, designed to render invisible flammable fuel gases perceptible to human senses at ultra-low trace concentrations. Beyond gas odorization sectors, this compound acts as a core thiol building block in organic synthesis, participating in nucleophilic substitution reactions to graft ethyl sulfide functional segments for manufacturing agrochemical intermediates, rubber vulcanization regulators and metal surface treatment additives. Strict storage and transport protocols are mandatory: the substance must be sealed inside UN-classified anti-corrosion metal barrels with nitrogen blanketing, as open-air contact triggers rapid oxidative deterioration that weakens its odor signaling performance. When deployed in LPG and city gas odorant injection stations, dosing systems administer this thiol at standardized loadings of 12–48 mg per cubic meter of liquefied gas, delivering immediate leak warning signals regardless of short-distance pipeline temperature swings.

A large-scale LPG & LNG odorant compounding enterprise cooperated with our team to stabilize their annual raw material supply chain for finished gas odorant production, covering nationwide liquefied gas refueling stations and pipeline gas service networks. The client needed steady batches of three core high-purity sulfur-based raw materials-tert-butyl mercaptan, ethyl mercaptan, and tetrahydrothiophene-to formulate custom odorant blends that fit different LNG and LPG operating environments, while fully complying with international hazardous chemical transportation and gas safety specifications.

We delivered a tailor-made bulk supply program, including separated port shipment arrangements for different raw materials, complete dangerous goods certification documents, and flexible scheduled just-in-time bulk delivery aligned with their yearly production consumption volume. Our consistent high-purity raw materials enabled the customer to adjust blend ratios freely for distinct gas application scenarios; the finished odorants retained stable warning scent performance under extreme temperature and pressure changes during liquefied gas storage and transportation. The optimized raw material supply cycle cut their production downtime risk by nearly 22% and eliminated shortages of key blending materials throughout the year.

This long-term partnership helped the client achieve full compliance with cross-border hazardous cargo import rules and unified gas odorization industry standards, while greatly lifting the safety performance of downstream urban gas supply systems. The client noted obvious optimization in overall production cost control and a sharp drop in emergency stockout losses, fully proving the core value of stable, qualified sulfur odorant raw materials for commercial gas odorant compounding enterprises.