S-Methylisothiourea sulfate
- CAS NO.：2260-00-6
- Empirical Formula: C4H14N4O4S3
- Molecular Weight: 278.37336
- EINECS: 2188602
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-12-31 14:38:37
What is S-Methylisothiourea sulfate?
Chemical properties
Needle crystals. Melting point 244 ° C (decomposition). Soluble in hot water, insoluble in alcohol. Its free radical S-methylisothiourea [2986-19-8] cannot be isolated; its hydrochloride salt [53114-57-1] has a melting point of 59-60 °C.
The Uses of S-Methylisothiourea sulfate
S-Methylisothiourea sulfate is an intermediate in organic synthesis. The pharmaceutical industry is used in the production of anticancer drugs 5-fluorouracil, propionamidine hydrazone, hydroxyguanidine sulfate, and antihypertensive drugs guanchlorophen, etc.; in the pesticide industry, it is used in the production of fungicides carbendazim, benright and insecticide pyrifox Wait.
Synthesis
S-Methylisothiourea sulfate is obtained by methylation of thiourea and dimethyl sulfate.
Properties of S-Methylisothiourea sulfate
| Melting point: | 235 °C |
| EPA Substance Registry System | 2-Methyl-2-thiopseudourea sulfate (2260-00-6) |
Safety information for S-Methylisothiourea sulfate
Computed Descriptors for S-Methylisothiourea sulfate
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