Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise specializing in the research and development, manufacturing, and sales of fine chemicals. Headquartered in Jinan, Shandong, China, we are committed to delivering high-quality products to our global partners. Currently, over 90% of our products are exported to developed markets, including North America, Europe, Japan, South Korea, and the Middle East.
Basic Information
Product Name: Bismuththiol
Alias: 2,5-Dimercapto-1,3,4-thiadiazole; Bismuthiol I; DMTD
CAS No. : 1072-71-5
EINECS No. : 214-014-1
Molecular Formula: C2H2N2S3
Molecular Weight: 150.25 g/mol
Classification: Organic sulfur compound; Analytical reagent; Metal chelating agent; Pharmaceutical intermediate
Physical & Chemical Properties
Appearance: White to off-white or yellow crystalline powder
Odor: Slight characteristic odor
Melting Point: 162 °C (dec.)
Solubility: 20 g/L (20 °C); soluble in ether and alkaline solutions, slightly soluble in ethanol
Stability: Light-sensitive; unstable in alkaline solution; store sealed, dry and below 30°C
Specification Table
| Item | Specification | Unit | Remarks |
| Product Name | Bismuththiol | — | 2,5-Dimercapto-1,3,4-thiadiazole |
| CAS Number | 1072-71-5 | — | — |
| Appearance | White to yellow crystalline powder | — | Fine crystal |
| Molecular Formula | C2H2N2S3 | — | — |
| Molecular Weight | 150.25 | g/mol | — |
| Purity | ≥98.0 | % | HPLC |
Structural Formula
Main Uses
- Analytical reagent: Colorimetric determination of Bi, Cu, Pb, Pd and Sb; photometric analysis of Bi and Pd
- Metal chelating agent: Forms stable complexes with metal ions for separation and purification
- Pharmaceutical intermediate: Prepares bismuth-containing drugs for Helicobacter pylori treatment
- Industrial additive: Used in fuel additives, corrosion inhibitors and organic synthesis raw materials
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