Detail of "1677-46-9"

CAS Number:
1677-46-9
Name:
2(1H)-Quinolinone,4-hydroxy-1-methyl-
Molecular Structure:
Formula:
C10H9 N O2
Molecular Weight:
175.20
Synonyms:
Carbostyril,4-hydroxy-1-methyl- (6CI,7CI,8CI);1-Methyl-2-oxo-1,2-dihydro-4-hydroxyquinoline; 1-Methyl-4-hydroxy-2(1H)-quinolinone;1-Methyl-4-hydroxy-2-quinolone; 1-Methyl-4-hydroxycarbostyril;4-Hydroxy-1-methyl-2(1H)-quinolone; 4-Hydroxy-1-methyl-2-quinolinone;4-Hydroxy-1-methyl-2-quinolone; 4-Hydroxy-1-methylcarbostyril;4-Hydroxy-1-methylquinolin-2(1H)-one; 4-Hydroxy-1-methylquinoline-2(1H)-one;4-Hydroxy-N-methyl-2-quinolinone; 4-Hydroxy-N-methyl-2-quinolone;4-Hydroxy-N-methylcarbostyril; N-Methyl-4-hydroxyquinol-2-one; NSC 39973
Density:
1.326g/cm³
Melting Point:
269-271 °C(lit.)
Boiling Point:
293.4°Cat760mmHg
Flash Point:
131.2°C
Hazard Symbols:
Risk Codes:
36/37/38
Safety:
Poison by intravenous route. Mildly toxic by ingestion. An eye irritant. When heated to decomposition it emits toxic fumes of NO_x. Details

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Hydroxyquinolone monoazo dyes, their preparation and their use: Hydroxyquinolone monoazo dyes, their preparation and their use. Buehler, Ulrich (Dystar Japan Ltd., Japan). Eur. Pat. Appl. EP 752452 A1 8 Jan 1997, 23 pp. DESIGNATED STATES: R: CH, DE, FR, GB, LI. (German). (European Patent Organization). CODEN: EPXXDW. CLASS: ICM: C09B029-42. ICS: C09B029-045. APPLICATION: EP 1996-110473 28 Jun 1996. PRIORITY: DE 1995-19524274 4 Jul 1995. 1677-46-9 and 186466-05-7 which are cas registry numbers of chemicals are mentioned. DOCUMENT TYPE: Patent CA Section: 41 (Dyes, Organic Pigments, Fluorescent Brighteners, and Photographic Sensitizers) Section cross-reference(s): 40 4-Hydroxy-2-quinolone azo dyes (I; R = optionally substituted alkyl, benzyl, Ph; X = substituted 2-benzothiazolyl or Ph) are obtained from XNH2 diazo component and the desired hydroxyquinolone coupling component. I have good alk. stability when applied to synthetics. In an example, 4-amino-4'-isopropylbenzophenone?4-hydroxy-1-methyl-2-quinolone was prepd. and used to dye polyester greenish yellow. .

One-step synthesis of 3,3'-benzylidenebis[4-hydroxy-1-methyl(phenyl)-2-quinolones]: One-step synthesis of 3,3'-benzylidenebis[4-hydroxy-1-methyl(phenyl)-2-quinolones]. Rao, V. Sudhakar; Darbarwar, Malleshwar (Dep. Chem., Osmania Univ., Hyderabad 500 007, India). Indian J. Chem., Sect. B, 25B(5), 540-1 (English) 1986. CODEN: IJSBDB. ISSN: 0376-4699. DOCUMENT TYPE: Journal CA Section: 27 (Heterocyclic Compounds (One Hetero Atom)) A one-step synthesis of benzylidenebis[4-hydroxy-2-quinolones] I (R = Me, Ph; R1 = H, Me, OMe, Cl, NO2) involves the condensation of 4-hydroxy-2-quinolone II with 4-R1C6H4CH:NPh in acetic acid.Except for chemicals metioned above, 1677-46-9 and 100-52-7 are also used. .