1,3-Dimethylurea
- CAS No.
- 96-31-1
- Chemical Name:
- 1,3-Dimethylurea
- Synonyms
- syM;N,N'-DIMETHYLUREA;(CH3NH)2CO;AKOS B029718;1.3-DiMethyl u;1,3-DIMETHYLUREA;SYM-DIMETHYLUREA;1,3-dimethyl-ure;n,n’-dimethyl-ure;Dimethylcarbamide
- CBNumber:
- CB6266530
- Molecular Formula:
- C3H8N2O
- Molecular Weight:
- 88.11
- MOL File:
- 96-31-1.mol
- MSDS File:
- SDS
- Modify Date:
- 2024/7/30 14:17:11
| Melting point | 101-104 °C(lit.) |
|---|---|
| Boiling point | 268-270 °C(lit.) |
| Density | 1.142 |
| vapor pressure | 6 hPa (115 °C) |
| refractive index | 1.4715 (estimate) |
| Flash point | 157 °C |
| storage temp. | Store below +30°C. |
| solubility | H2O: 0.1 g/mL, clear, colorless |
| pka | 14.57±0.46(Predicted) |
| form | Crystals |
| color | White |
| PH | 9.0-9.5 (100g/l, H2O, 20℃) |
| Water Solubility | 765 g/L (21.5 ºC) |
| BRN | 1740672 |
| InChIKey | MGJKQDOBUOMPEZ-UHFFFAOYSA-N |
| LogP | -0.783 at 25℃ |
| CAS DataBase Reference | 96-31-1(CAS DataBase Reference) |
| NIST Chemistry Reference | Urea, N,N'-dimethyl-(96-31-1) |
| EPA Substance Registry System | 1,3-Dimethylurea (96-31-1) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS08 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H373 | |||||||||
| Precautionary statements | P260-P314-P501 | |||||||||
| Risk Statements | 62-63-68 | |||||||||
| Safety Statements | 22-24/25 | |||||||||
| WGK Germany | 1 | |||||||||
| RTECS | YS9868000 | |||||||||
| F | 10-21 | |||||||||
| Autoignition Temperature | 400 °C | |||||||||
| TSCA | Yes | |||||||||
| HS Code | 29241900 | |||||||||
| Toxicity | LD50 orally in Rabbit: 4000 mg/kg | |||||||||
| NFPA 704 |
|
1,3-Dimethylurea price More Price(13)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | 8.03244 | N,N′-Dimethylurea for synthesis | 96-31-1 | 100G | ₹3870 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 8.03244 | N,N′-Dimethylurea for synthesis | 96-31-1 | 1KG | ₹7340.01 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 40410 | N,N′-Dimethylurea (sym.), ≥95.0% (HPLC), technical | 96-31-1 | 50G | ₹2316.55 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 40410 | N,N′-Dimethylurea (sym.), ≥95.0% (HPLC), technical | 96-31-1 | 1KG | ₹3734.63 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 36574 | N,N′-Dimethylurea PESTANAL?, analytical standard | 96-31-1 | 250MG | ₹4373.3 | 2022-06-14 | Buy |
1,3-Dimethylurea Chemical Properties,Uses,Production
Chemical Properties
white crystals
Uses
N,N′-Dimethylurea can be used:
- As a starting material to synthesize N,N′-dimethyl-6-amino uracil.
- In combination with β-cyclodextrin derivatives, to form low melting mixtures (LMMs), which can be used as solvents for hydroformylation and Tsuji-Trost reactions.
- To synthesize N,N′-disubstituted-4-aryl-3,4-dihydropyrimidinones via Biginelli condensation under solvent-free conditions.
Definition
ChEBI: A member of the class of ureas that is urea substituted by methyl groups at positions 1 and 3.
General Description
Colorless crystals.
Air & Water Reactions
Water soluble.
Reactivity Profile
1,3-Dimethylurea is an amide. Amides/imides react with azo and diazo compounds to generate toxic gases. Flammable gases are formed by the reaction of organic amides/imides with strong reducing agents. Amides are very weak bases (weaker than water). Imides are less basic yet and in fact react with strong bases to form salts. That is, they can react as acids. Mixing amides with dehydrating agents such as P2O5 or SOCl2 generates the corresponding nitrile. The combustion of these compounds generates mixed oxides of nitrogen (NOx).
Health Hazard
ACUTE/CHRONIC HAZARDS: When heated to decomposition 1,3-Dimethylurea emits toxic fumes.
Fire Hazard
Flash point data for 1,3-Dimethylurea are not available; 1,3-Dimethylurea is probably combustible.
Safety Profile
Moderately toxic by intraperitoneal route. Experimental teratogenic and reproductive effects. Human mutation data reported. When heated to decomposition it emits toxic fumes of NOx
Purification Methods
Crystallise the urea from acetone/diethyl ether by cooling in an ice bath. Also crystallise it from EtOH and dry it at 50o/5mm for 24hours [Bloemendahl & Somsen J Am Chem Soc 107 3426 1985]. [Beilstein 4 IV 207.]
1,3-Dimethylurea Preparation Products And Raw materials
Raw materials
Preparation Products
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chevron_right| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| ADVENT CHEMBIO PRIVATE LIMITED | +91-9821524116 +91-9821524116 | Mumbai, India | 353 | 58 | Inquiry |
| HRV Global Life Sciences | +91-9820219686 +91-9820219686 | Telangana, India | 379 | 58 | Inquiry |
| Merck Ltd | +91-2262109800 +91-2262109000 | Maharashtra, India | 272 | 58 | Inquiry |
| JSK Chemicals | +919879767970 | Gujarat, India | 3756 | 58 | Inquiry |
| S D Fine Chem Limited | +91-9323715856 +91-9323715856 | Maharashtra, India | 368 | 58 | Inquiry |
| A. B. Enterprises | 08048986961 | Mumbai, India | 226 | 58 | Inquiry |
| HiMedia Laboratories | 91-22-61471919 | Maharashtra, India | 1843 | 58 | Inquiry |
| CLEARSYNTH LABS LTD. | +91-22-45045900 | Hyderabad, India | 6351 | 58 | Inquiry |
| A.J Chemicals | 91-9810153283 | New Delhi, India | 6124 | 58 | Inquiry |
| BALAJI AMINES LTD. | +91-217-2310822/3/4/7 | New Delhi, India | 16 | 64 | Inquiry |
| Supplier | Advantage |
|---|---|
| ADVENT CHEMBIO PRIVATE LIMITED | 58 |
| HRV Global Life Sciences | 58 |
| Merck Ltd | 58 |
| JSK Chemicals | 58 |
| S D Fine Chem Limited | 58 |
| A. B. Enterprises | 58 |
| HiMedia Laboratories | 58 |
| CLEARSYNTH LABS LTD. | 58 |
| A.J Chemicals | 58 |
| BALAJI AMINES LTD. | 64 |
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