1,1,3,3-Tetramethylguanidine
1,1,3,3-Tetramethylguanidine
CAS: 80-70-6
Molecular Formula: C5H13N3
1,1,3,3-Tetramethylguanidine - Names and Identifiers
| Name | 1,1,3,3-Tetramethylguanidine |
| Synonyms | TMG Tetramethylguanidine N,N'-Tetramethylguanidine N,N'-tetramethylguanidine 1,1,3,3-Tetramethylguanidin 1,1,3 tetramethyl guanidine 1,1,3,3-Tetramethylguanidine N,N,N,N-Tetramethy1 Guanidine 1,1,3,3-Tetermethyl Guanidine N,N,N',N'-tetramethyl-guanidine 1,1,3,3-Tetramethyl Guanidine (TMG) N-[amino(dimethylamino)methylidene]-N-methylmethanaminium |
| CAS | 80-70-6 |
| EINECS | 201-302-7 |
| InChI | InChI=1/C5H13N3/c1-7(2)5(6)8(3)4/h6H,1-4H3 |
| InChIKey | KYVBNYUBXIEUFW-UHFFFAOYSA-N |
1,1,3,3-Tetramethylguanidine - Physico-chemical Properties
| Molecular Formula | C5H13N3 |
| Molar Mass | 115.18 |
| Density | 0.916 g/mL at 20 °C (lit.) |
| Melting Point | -30 °C |
| Boling Point | 162-163 °C (lit.) |
| Flash Point | 140°F |
| Water Solubility | miscible |
| Vapor Presure | 0.2 mm Hg ( 20 °C) |
| Appearance | Liquid |
| Color | APHA: ≤150 |
| BRN | 969608 |
| PH | 12.7 (10g/l, H2O, 25℃) |
| Storage Condition | Store below +30°C. |
| Stability | Stable. Combustible. Incompatible with strong oxidizing agents, mineral and organic acids, carbon dioxide. Air-sensitive. |
| Sensitive | Air Sensitive |
| Explosive Limit | 1.0-7.5%(V) |
| Refractive Index | n20/D 1.469 |
| Physical and Chemical Properties | Colorless transparent liquid. |
| Use | It is mainly used as a catalyst for polyurethane foam, and also used for the dyeing of nylon, wool and other proteins. |
1,1,3,3-Tetramethylguanidine - Risk and Safety
| Hazard Symbols | C - Corrosive |
| Risk Codes | R22 - Harmful if swallowed R34 - Causes burns R20/22 - Harmful by inhalation and if swallowed. R10 - Flammable |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S27 - Take off immediately all contaminated clothing. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S16 - Keep away from sources of ignition. |
| UN IDs | UN 2920 8/PG 2 |
| WGK Germany | 1 |
| FLUKA BRAND F CODES | 9-23 |
| TSCA | Yes |
| HS Code | 29252000 |
| Hazard Note | Harmful/Corrosive |
| Hazard Class | 8 |
| Packing Group | II |
| Toxicity | LD50 orally in Rabbit: 835 mg/kg |
1,1,3,3-Tetramethylguanidine - Reference Information
| relative polarity | 5.5 |
| LogP | -0.49 at 20℃ |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | in organic synthesis, 1,1,3, 3-tetramethylguanidine is used as a strong, non-nucleophilic base. 1,1,3, 3-tetramethylguanidine is an efficient and selective catalyst for the benzoylation of alcohols. It is widely used in the synthesis of pharmaceutical and chemical raw materials. It is mainly used in the production of cephalosporins in medicine. It is mainly used as a catalyst for polyurethane foam, and also used for the dyeing of nylon, wool and other proteins |
| autoignition temperature | 222°C |
Last Update：2024-04-09 20:49:11
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