2-Mercapto-5-methyl-1,3,4-thiadiazole
Synonym(s):2-Mercapto-5-methyl-1,3,4-thiadiazole
- CAS NO.：29490-19-5
- Empirical Formula: C3H4N2S2
- Molecular Weight: 132.21
- MDL number: MFCD00038349
- EINECS: 249-667-1
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-06-19 07:28:27
What is 2-Mercapto-5-methyl-1,3,4-thiadiazole?
Chemical properties
white crystal powder
The Uses of 2-Mercapto-5-methyl-1,3,4-thiadiazole
thiadiazole pharmaceutical intermediate
The Uses of 2-Mercapto-5-methyl-1,3,4-thiadiazole
5-Methyl-1,3,4-thiadiazol-2-thiol (Cefazolin EP Impurity E), is a new potent nitrification inhibitors. It is also an intermediate in the synthesis of Thiazolylacetylglycine Oxime (T344230).
General Description
5-Methyl-1,3,4-thiadiazole-2-thiol is a pharmaceutical intermediate. UV and UV/H2O2 induced degradation of 5-methyl-1,3,4-thiadiazole-2-thiol has been investigated.
Properties of 2-Mercapto-5-methyl-1,3,4-thiadiazole
| Melting point: | 185-188 °C |
| Boiling point: | 182.9±23.0 °C(Predicted) |
| Density | 1.373 (estimate) |
| refractive index | 1.5500 (estimate) |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | chloroform: soluble10mg/mL, clear to very slightly hazy, colorless |
| form | solid |
| pka | 6.49±0.40(Predicted) |
| color | White to Off-White |
| Water Solubility | 2 g/100 mL |
| BRN | 606663 |
| CAS DataBase Reference | 29490-19-5(CAS DataBase Reference) |
| NIST Chemistry Reference | 1,3,4-Thiadiazole-2(3H)-thione, 5-methyl-(29490-19-5) |
Safety information for 2-Mercapto-5-methyl-1,3,4-thiadiazole
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 2-Mercapto-5-methyl-1,3,4-thiadiazole
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