Skip to content 
CAS 75-08-1 Ethyl Mercaptan
Overview
Ethyl Mercaptan (also Ethanethiol; CAS 75-08-1; C2H5SH, 62.13 g/mol) is a low-boiling, highly odorous thiol supplied as a clear, volatile liquid with an extremely low odor threshold (skunk-like note).It is widely used as a warning odorant for LPG/propane and natural gas leak detection, and as a reactive intermediate for making thioethers, thioesters, sulfur-containing auxiliaries, and specialty intermediates in fine chemicals
Product Description
CAS 75-08-1 Ethyl Mercaptan
Shandong Yinglang Chemical CO., LTD supplies industrial-grade Ethyl Mercaptan with controlled low impurities and water content, offering stabilized grades, OEM packaging, and DG-compliant export. Handle and store tightly sealed in cool, well-ventilated areas under inert gas; highly flammable (very low flash point), toxic/irritant, and intensely odorous—use compatible materials and odor-control measures per SDS. COA/TDS/SDS available; industrial/R&D use only.
Ethyl Mercaptan (Ethanethiol) — Product Specification
CAS: 75-08-1 | Formula: C2H5SH | Function: LPG odorant / sulfur intermediate (industrial use)
Identity & Form
| Appearance | Clear, colorless to pale-yellow liquid; extremely strong mercaptan odor |
|---|---|
| Solubility | Sparingly soluble in water; miscible with many organic solvents |
| Boiling characteristics | Low-boiling; report range on COA (grade-dependent) |
| Intended use | Industrial/R&D use only (e.g., LPG odorant; fine-chemical intermediate) |
| Documents | COA · TDS · SDS · IFRA/Allergen (if applicable) |
Typical Specification (example)
| Assay (GC, ethanethiol) | ≥ 99.0% (area %) |
|---|---|
| Water (Karl Fischer) | ≤ 0.10% (w/w) |
| Diethyl disulfide (GC) | ≤ 0.50% (w/w) |
| Hydrogen sulfide (H2S) | ≤ 20 ppm |
| Acidity (as CH3COOH) | ≤ 0.005% (w/w) |
| Color (APHA) | ≤ 30 |
| Non-volatile residue | ≤ 0.01% (w/w) |
| Density @20 °C | Report (per lot/COA) |
| Refractive index | Report (per lot/COA) |
Handling & Safety
| Hazards | Highly flammable, toxic/irritant, intensely odorous; vapors may form explosive mixtures with air |
|---|---|
| Storage | Tightly sealed, cool, well-ventilated; protect from heat/ignition; use inert-gas blanketing where applicable |
| Compatibility | Avoid oxidizers, acids, and copper/alloy catalysts that promote oxidation/disulfide formation |
| Transport (DG) | Dangerous goods; follow SDS/COA for UN No., class, and packing group; odor-control measures required |
Packaging & Logistics
| Small packs | 1–5 L sealed containers (odor-tight liners); sample packs on request |
|---|---|
| Bulk packs | 20–200 L drums or approved containers; returnable options on request |
| OEM options | Stabilized grades, customized specs, labeling, and odorant blends (per inquiry) |
| Ports | Qingdao · Shanghai · Tianjin (DG-compliant export) |
| For quotation (specify) | Target assay, impurity limits (DEDS/H2S), pack size, destination port/country |
© Shandong Yinglang Chemical CO.,LTD · Information for B2B technical marketing only.
PACKING AND DELIVERY
Packing and delivery
We offer secure and compliant packaging for a wide range of chemical products, from laboratory bottles (100 mL, 250 mL, 500 mL) to customized bulk containers. All shipments follow international hazardous goods standards and include complete documentation such as COA and SDS. With reliable global logistics partners, we ensure safe, fast, and efficient delivery by air, sea, or land according to customer needs.