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2H-1,3-Benzoxazine-2,4(3H)-dione

2H-1,3-Benzoxazine-2,4(3H)-dione Struktur
2037-95-8
CAS-Nr.
2037-95-8
Englisch Name:
2H-1,3-Benzoxazine-2,4(3H)-dione
Synonyma:
ruhmal;carsalam;beaprine;Cacharon;Carsalame;Two ketone;4(3 H)-DIONE;CAS:2037-95-8;3-BENZOXAZINE-2;oxophenhydroxazine
CBNumber:
CB7736467
Summenformel:
C8H5NO3
Molgewicht:
163.13
MOL-Datei:
2037-95-8.mol

2H-1,3-Benzoxazine-2,4(3H)-dione Eigenschaften

Schmelzpunkt:
228-232 °C(lit.)
Dichte
1.402±0.06 g/cm3(Predicted)
Dampfdruck
0.73-1.27Pa at 89.94-107.94℃
storage temp. 
Sealed in dry,Room Temperature
L?slichkeit
DMSO : ≥ 40 mg/mL (245.20 mM)
Aggregatzustand
Solid
pka
9.16±0.20(Predicted)
Farbe
White to off-white
Merck 
13,1879
InChI
InChI=1S/C8H5NO3/c10-7-5-3-1-2-4-6(5)12-8(11)9-7/h1-4H,(H,9,10,11)
InChIKey
OAYRYNVEFFWSHK-UHFFFAOYSA-N
SMILES
O1C2=CC=CC=C2C(=O)NC1=O
LogP
0.78-0.88 at 20℃
Sicherheit
  • Risiko- und Sicherheitserkl?rung
  • Gefahreninformationscode (GHS)
Kennzeichnung gef?hrlicher Xn
R-S?tze: 22
S-S?tze: 36
WGK Germany  3
RTECS-Nr. DM3110000
HS Code  2934999090
Bildanzeige (GHS) GHS hazard pictograms
Alarmwort Warnung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H302 Gesundheitssch?dlich bei Verschlucken. Akute Toxizit?t oral Kategorie 4 Warnung GHS hazard pictogramssrc="/GHS07.jpg" width="20" height="20" /> P264, P270, P301+P312, P330, P501
Sicherheit
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.
P305+P351+P338 BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach M?glichkeit entfernen. Weiter spülen.

2H-1,3-Benzoxazine-2,4(3H)-dione Chemische Eigenschaften,Einsatz,Produktion Methoden

R-S?tze Betriebsanweisung:

R22:Gesundheitssch?dlich beim Verschlucken.

S-S?tze Betriebsanweisung:

S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.

Chemische Eigenschaften

Off-white to light brown crystalline powder

Verwenden

analgesic

Allgemeine Beschreibung

Kinetic studies of the alkaline hydrolysis of 2H-1,3-benzoxazine-2,4(3H)-dione (carsalam) were conducted and reaction was found to be of fractional order with respect to [OH-].

Synthese

2H-1,3-Benzoxazine-2,4(3H)-dione was prepared according to the procedure of Hoback, Crum and Carroll. To a solution of 411 g. (3. 0 moles) salicylamide in 483 ml. (6.0 moles) of anhydrous pyridine at 0℃ was added slowly with stirring 572 ml. (6.0 moles) of ethyl chlorocarbonate. The resulting orange solution was refluxed for 5 hr. and poured into 2L of ice water. The filtered product was washed twice with 0.5L of water and recrystallized three times from acetone-ethanol (50: 50), giving white needles 2H-1,3-Benzoxazine-2,4(3H)-dione (83% yield), m.p. 227.5-228.5° (lit. 12), m.p. 227-228°, which gave no coloration with ethanolic ferric chloride[1].

2H-1,3-Benzoxazine-2,4(3H)-dione Upstream-Materialien And Downstream Produkte

Upstream-Materialien

2H-1,3-Benzoxazin-2-one, 4-[(4-methylphenyl)amino]- Ethyl-chlorformiat carbon monoxide 2-Iodphenol 1,1'-Carbonylbis-1H-imidazol Diethylcarbonat 2-Hydroxybenzamid Carbonylchlorid Kaliumcyanat Oxalyldichlorid

Downstream Produkte

2H-1,3-Benzoxazine-2,4(3H)-dione Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

Global( 225)Lieferanten
Firmenname Telefon E-Mail Land Produktkatalog Edge Rate
CHANGZHOU HARVECHEM LTD 		+86-0519-88784888 +8613906120163
 inquiry@harvechem.com China 271 58
Beijing Toachem Chemical Co.,Ltd
+8618311365218
 sales@toachem.com China 184 58
Capot Chemical Co.,Ltd. 		+86-（0）57185586718 +86-13336195806
 sales@capot.com China 29793 60
ATK CHEMICAL COMPANY LIMITED 		+undefined-21-51877795
ivan@atkchemical.com China 32956 60
Alchem Pharmtech,Inc. 		8485655694
sales@alchempharmtech.com United States 63687 58
Hebei shuoxi biotechnology co. LTD 		+8613081092107
CHINA 964 58
CONIER CHEM AND PHARMA LIMITED 		+8618523575427
 sales@conier.com China 49374 58
Antai Fine Chemical Technology Co.,Limited 		18503026267
 info@antaichem.com CHINA 9636 58
SIMAGCHEM CORP 		+86-13806087780
 sale@simagchem.com China 17365 58
TargetMol Chemicals Inc. 		+1-781-999-5354 +1-00000000000
 marketing@targetmol.com United States 32161 58

2037-95-8()Verwandte Suche:

  • beaprine
  • carsalam
  • oxophenhydroxazine
  • ruhmal
  • TIMTEC-BB SBB003929
  • 1,3-BENZOXAZINE-2,4-DIONE
  • 2H-1,3-Benzoxazine-2,4(3H)-dione 98%
  • CAS:2037-95-8
  • Carsalam≥ 99% (HPLC)
  • 2 H-1,3-BENZOXAZINE-2,4(3 H)-DIONE
  • 1,3-Benzoxazine-2,4-(3H)-dione
  • Carsalame
  • Carbonylsalicylamide
  • 1,3-benzoxazine-2,4-quinone
  • 2H-Benzo[e][1,3]oxazine-2,4(3H)-dione
  • CarsalaM (1,3-benzoxazine-2,4-(3H)-dione)
  • 2,4-Dioxo-3,4-dihydro-2H-1,3-benzoxazine
  • Two ketone
  • 3,4-dihydro-2H-1,3-benzoxazine-2,4-dione
  • 2 H-1,3-BENZOXAZINE-2,4(3 H)-DIONE ISO 9001：2015 REACH
  • 3-BENZOXAZINE-2
  • 4(3 H)-DIONE
  • Carsalam(Carbonyl salicylamide)
  • Kasharin reference substance
  • Salcaprozate Impurity 9
  • Cacharon
  • 8- (2-hydroxybenzamide) sodium octanoate impurity 22
  • 2037-95-8
  • 2307-95-8
  • Building Blocks
  • Benzoxazines
  • Heterocyclic Building Blocks
  • Benzoxazines
  • Building Blocks
  • Heterocyclic Building Blocks
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