Detail of "893-33-4"

CAS Number:
893-33-4
Name:
1,3-Butanedione,4,4,4-trifluoro-1-(2-naphthalenyl)-
Molecular Structure:
Formula:
C₁₄H₉F₃O₂
Molecular Weight:
266.22
Synonyms:
4,4,4-Trifluoro-1-(2-naphthyl)-1,3-butanedione;2-Naphthoyltrifluoroacetone;4,4,4-Trifluoro-1-(2-naphthalenyl)-1,3-butanedione;4,4,4-Trifluoro-1-(2'-naphthyl)-1,3-butanedione;4-(2-Naphthyl)-1,1,1-trifluoro-2,4-butanedione;NSC 42790;b-Naphthoyltrifluoroacetone;1,3-Butanedione,4,4,4-trifluoro-1-(2-naphthyl)- (6CI,8CI);1-(2-Naphthoyl)-3,3,3-trifluoroacetone;1-(2-Naphthyl)-4,4,4-trifluoro-1,3-butanedione;
Density:
1.32g/cm³
Melting Point:
70-72 °C(lit.)
Boiling Point:
350.7 °C at 760 mmHg
Flash Point:
125.9 °C
Hazard Symbols:
Xi
Risk Codes:
36/37/38
Safety:
22-24/25 Details

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Organic red fluorescent material for white light-emitting LED package: All Rights Reserved. Organic red fluorescent material for white light-emitting LED package. Xu, Changfu; Li, Maolong; Yu, Jingjie; Luo, Xixian; Xiong, Chuyao; Chang, Ying; Xiao, Zhiguo (Dalian Luming Light Science and Technology Co. 893-33-4 and 25549-16-0 are also occured in this study., Ltd., Peop. Rep. China). Faming Zhuanli Shenqing Gongkai Shuomingshu CN 1880403 A 20 Dec 2006, 22pp. (Chinese). (People's Republic of China). CODEN: CNXXEV. APPLICATION: CN 2010-78429 14 Jun 2005. DOCUMENT TYPE: Patent CA Section: 73 (Optical, Electron, and Mass Spectroscopy and Other Related Properties) The title org. red fluorescent material contains rare earth-org. ligand, wherein rare earth is trivalent Eu, and the org. ligand is b-diketone. This fluorescent material can emit bright red light under exciting of blue-light chip of 450-470 nm with max. emission spectrum of about 613 nm. This fluorescent material can be mixed with YAG and is coated onto a blue-light chip with carrier resin to improve color development index of white-light LED devices. .

Europium as a label in time-resolved immunofluorometric assays: Europium as a label in time-resolved immunofluorometric assays. Hemmila, Ilkka; Dakubu, Salifu; Mukkala, Veli Matti; Siitari, Harri; Lovgren, Timo (Wallac Biochem. Lab., Turku SF-20101/10, Finland). Anal. Biochem., 137(2), 335-43 (English) 1984. CODEN: ANBCA2. ISSN: 0003-2697. DOCUMENT TYPE: Journal CA Section: 9 (Biochemical Methods) Section cross-reference(s): 15 A nonisotopic immunoassay based on a sensitive detection of Eu(III) in H2O soln. by time-resolved fluorometry is described. The Eu label is bound to the antibody with EDTA derivs., either diazophenyl-EDTA-Eu or isothiocyanatophenyl-EDTA-Eu. 893-33-4 and 326-91-0 which are cas registry numbers are also used here. After the immunometric assay is completed the Eu is preferably dissocd. from the antibody at low pH and measured by time-resolved fluorescence in a micellar soln. contg. Triton X100, b-diketone, and a Lewis base. The detergent solubilizes the chelating compds. in the soln. and excludes water from the fluorescent ligand Eu complex. Eu concns. as low as 5 ′ 10-14M were detd. by a 1-s counting time. The sensitivity of the immunoassay of rabbit IgG used as a model system was 25 pg/mL (6 pg/assay). .