N,N'-DIMETHYLTHIOUREA
Synonym(s):1,3-Dimethylthiourea;N,N′-Dimethylthiourea
- CAS NO.：534-13-4
- Empirical Formula: C3H8N2S
- Molecular Weight: 104.17
- MDL number: MFCD00004923
- EINECS: 208-588-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-03-13 23:13:44
What is N,N'-DIMETHYLTHIOUREA?
Description
Dimethylthiocarbamide, an antioxygen agent, is responsible for sensitization, when unexposed to light, from diazo papers.
Chemical properties
colorless to white crystals, crystalline powder
The Uses of N,N'-DIMETHYLTHIOUREA
N,N'-Dimethylthiourea is an antioxidant present in diazo copy paper to prevent yellow discoloration of the paper.
The Uses of N,N'-DIMETHYLTHIOUREA
Intermediate in the preparation of Arginine derivatives.
Contact allergens
Dimethylthiocarbamide, an antioxygen agent, is responsible for sensitization, when unexposed to light from diazo papers.
Safety Profile
Moderately toxic by ingestion. Experimental teratogenic and reproductive effects. When heated to decomposition it emits toxic fumes of SOx andNO,.
Properties of N,N'-DIMETHYLTHIOUREA
| Melting point: | 61-63 °C |
| Boiling point: | 155 °C (0.7501 mmHg) |
| Density | 1.055 (estimate) |
| refractive index | 1.5500 (estimate) |
| Flash point: | 200 °C |
| storage temp. | Store below +30°C. |
| solubility | 1000g/l (experimental) |
| form | Crystals, Crystalline Powder and/or Chunks |
| pka | 14.98±0.70(Predicted) |
| color | Colorless to white |
| PH | 6.5 (100g/l, H2O, 20℃) |
| Merck | 14,3261 |
| BRN | 605454 |
| CAS DataBase Reference | 534-13-4(CAS DataBase Reference) |
| NIST Chemistry Reference | Thiourea, N,N'-dimethyl-(534-13-4) |
| EPA Substance Registry System | N,N'-Dimethylthiourea (534-13-4) |
Safety information for N,N'-DIMETHYLTHIOUREA
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H317:Sensitisation, Skin |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P272:Contaminated work clothing should not be allowed out of the workplace. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P333+P313:IF SKIN irritation or rash occurs: Get medical advice/attention. |
Computed Descriptors for N,N'-DIMETHYLTHIOUREA
| InChIKey | VLCDUOXHFNUCKK-UHFFFAOYSA-N |
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