1,3-Dimethylharnstoff
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- CAS-Nr.
- 96-31-1
- Bezeichnung:
- 1,3-Dimethylharnstoff
- Englisch Name:
- 1,3-Dimethylurea
- Synonyma:
- 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
- Summenformel:
- C3H8N2O
- Molgewicht:
- 88.11
- MOL-Datei:
- 96-31-1.mol
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1,3-Dimethylharnstoff Eigenschaften
- Schmelzpunkt:
- 101-104 °C(lit.)
- Siedepunkt:
- 268-270 °C(lit.)
- Dichte
- 1.142
- Dampfdruck
- 6 hPa (115 °C)
- Brechungsindex
- 1.4715 (estimate)
- Flammpunkt:
- 157 °C
- storage temp.
- Store below +30°C.
- Löslichkeit
- H2O: 0.1 g/mL, clear, colorless
- pka
- 14.57±0.46(Predicted)
- Aggregatzustand
- Crystals
- Farbe
- White
- PH
- 9.0-9.5 (100g/l, H2O, 20℃)
- Wasserlöslichkeit
- 765 g/L (21.5 ºC)
- BRN
- 1740672
- InChIKey
- MGJKQDOBUOMPEZ-UHFFFAOYSA-N
- LogP
- -0.783 at 25℃
- CAS Datenbank
- 96-31-1(CAS DataBase Reference)
- NIST chemische Informationen
- Urea, N,N'-dimethyl-(96-31-1)
- EPA chemische Informationen
- 1,3-Dimethylurea (96-31-1)
Sicherheit
- Risiko- und Sicherheitserklärung
- Gefahreninformationscode (GHS)
| Bildanzeige (GHS) |
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| Alarmwort |
Warnung |
| Gefahrenhinweise |
| Code |
Gefahrenhinweise |
Gefahrenklasse |
Abteilung |
Alarmwort |
Symbol |
P-Code |
| H373 |
Kann die Organe schädigen bei längerer oder wiederholter Exposition. |
Spezifische Zielorgan-Toxizität (wiederholte Exposition) |
Kategorie 2 |
Warnung |
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P260, P314, P501 |
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| Sicherheit |
| P260 |
Dampf/Aerosol/Nebel nicht einatmen. |
| P314 |
Bei Unwohlsein ärztlichen Rat einholen / ärztliche Hilfe hinzuziehen. |
| P501 |
Inhalt/Behälter ... (Entsorgungsvorschriften vom Hersteller anzugeben) zuführen. |
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1,3-Dimethylharnstoff Chemische Eigenschaften,Einsatz,Produktion Methoden
R-Sätze Betriebsanweisung:
R62:Kann möglicherweise die Fortpflanzungsfähigkeit beeinträchtigen.
R63:Kann das Kind im Mutterleib möglicherweise schädigen.
R68:Irreversibler Schaden möglich.
S-Sätze Betriebsanweisung:
S22:Staub nicht einatmen.
S24/25:Berührung mit den Augen und der Haut vermeiden.
Chemische Eigenschaften
white crystals
Verwenden
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.
Allgemeine Beschreibung
Colorless crystals.
Air & Water Reaktionen
Water soluble.
Reaktivität anzeigen
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.
Brandgefahr
Flash point data for 1,3-Dimethylurea are not available; 1,3-Dimethylurea is probably combustible.
Sicherheitsprofil
Moderately toxic by
intraperitoneal route. Experimental
teratogenic and reproductive effects. Human
mutation data reported. When heated to
decomposition it emits toxic fumes of NOx
läuterung methode
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-Dimethylharnstoff Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
1,3-Dimethylharnstoff Anbieter Lieferant Produzent Hersteller Vertrieb Händler.
Global( 479)Lieferanten
96-31-1(1,3-Dimethylharnstoff)Verwandte Suche:
- n,n’-dimethylharnstoff
- n,n’-dimethyl-ure
- N,N'-Dimethylharnstoff
- Symmetric dimethylurea
- symmetricdimethylurea
- Urea, 1,3-dimethyl-
- urea,1.3-dimethyl-
- (CH3NH)2CO
- 1,3-dimethyl-ure
- SYM-DIMETHYLUREA
- 1,3-DIMETHYLUREA
- 1,3-DIMETHYLUREA(SYM)
- 1,3-DIMETHYLCARBAMIDE
- LABOTEST-BB LT01690258
- Dimethylcarbamide
- 1,3-Dimethylurea,98%
- N,N'-DIMETHYLUREA (SYM.)
- N,N'-DIMETHYL UREA PESTANAL, 250 MG
- N,N-DimethylureaForSynthesis
- AKOS B029718
- 1,3-Dimethylharnstoff
- 1,3-DiMethylurea, 98% 100GR
- 1,3-DiMethylurea, 98% 1KG
- 1,3-DiMethylurea, 98 Percent
- 1.3-DiMethyl u
- N,N'-Dimethylurea
- N,N'-Dimethylurea (sym.), >=95.0% (HPLC), technical
- EZNA KIT MOLLUSC DNA
- KIT MOLLUSC DNA EZNA 5 TESTS
- N,N'-Dimethylurea (sym.), >=99% (from N)
- n,n'-dimethylharnstoff (german)
- 1,3-Dimethylurea Factory
- N,N'-Dimethylurea Factory
- 1,3-Dimethylurea COA TDS MSDS
- 1,3-Dimethylurea-D6
- 1,3-Dimethylurea >
- 1,3-Dimethylurea ISO 9001：2015 REACH
- N,N-Dimethylurea (1,3-Dimethylurea) extrapure, 99%
- N,N'-DIMETHYLUREA
- syM
- Hydroxy Urea Impurity 4
- N,N'-dimethylurea
- 96-31-1
- 96-31-3
- C3H8NO2
- C3H8N2O
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