Detail of "23749-58-8"

MSDS Download
CAS Number:
23749-58-8
Name:
7H-Benzimidazo[2,1-a]benz[de]isoquinolin-7-one
Superlist Name:
7H-Benzimidazo[2,1-a]benzo[de]isoquinolin-7-one
Molecular Structure:
Formula:
C₁₈H₁₀N₂O
Molecular Weight:
270.28
Synonyms:
1,2-(1,8-Naphthoylene)benzimidazole;1,2-Naphthoylenebenzimidazole;1,8-Naphthoylene-1',2'-benzimidazole;Benzimidazole,1,2-(1',8'-naphthoylene)-;C.I. 71090;C.I. Solvent Yellow 184;Lum 15;Luminofor Yellow-Green 490RT;Luminogen;Luminophor 2;Luminor 2;Luminor490RT;Luminor Yellow Green 490RT;NSC 159457;Naphthoylenebenzimidazole;Solvent Yellow 184;Yellow-Green 490RT;
EINECS:
245-865-7
Density:
1.4 g/cm³
Boiling Point:
613.6 °C at 760 mmHg
Flash Point:
324.9 °C

Display：

1,8-naphthoilene-1,2-benzimidazole (Luminor yellow-green 490 RT)

910 Integral
910

Tel:+493493605464

Address:Vierzoner Str 14 D-06749 Bitterfeld Germany

Supplier:Zeya Chemicals (Haimen) Co.,Ltd. [ China (Mainland)]

600 Integral
600

Tel:+86-513-81299116;82112119;82187119

Address:No.651 Jialing River RD.,Haimen 226100,Jiangsu,P.R.China

Please post your buying leads,so that our qualified suppliers will soon contact you!
*Required Fields

Study of the thermal stability of some heterocyclic compounds: Study of the thermal stability of some heterocyclic compounds. Mognonov, D. M.; Khomutov, V. A.; Izyneev, A. A.; Doroshenko, Yu. E. (Inst. Estestv. Nauk, Ulan-Ude, USSR). Izv. Sib. Otd. Akad. Nauk SSSR, Ser. Khim. Nauk, (2), 124-7 (Russian) 1978. CODEN: IZSKAB. ISSN: 0002-3426. DOCUMENT TYPE: Journal CA Section: 35 (Synthetic High Polymers) Section cross-reference(s): 27, 28 Thermal stability was tested of 6 heterocyclic compds. as models for monomer units in heterocyclic polymers. The decompn. temp., detd. by evolution of H, were: 1,2-benzoylenebenzimidazole (I) [2717-05-7] 490, 1,2-naphthoylenebenzimidazole (II) [23749-58-8] 440, 2-phenylbenzimidazole [716-79-0] 400, N-phenylphthalimide [520-03-6] 390, and N-phenylnaphthalimide (III) [6914-98-3] 380°. The temps. of the cleavage of heterocyclic rings, detd. by evolution of CO, CO2, CH4, NH3, and HCN, ranged from 600° for II to 380° for III. Thermal decompn. of 4'(5')-(benzimidazolyl)-1,2-perinaphthoylenebenzimidazole [41257-17-4], modeling polybenzimidazolylnaphthoylenebenzimidazoles, was investigated in greater detail.

Spectroscopic study of the aging of glass fiber-reinforced plastics: Spectroscopic study of the aging of glass fiber-reinforced plastics. Stal'nov, V. K.; Upatova, E. I.; Savgira, Yu. A.; Grachev, N. M.; Dakhnyuk, E. M. (USSR). Plast. 106123-30-2 and 26590-20-5 are cas registry numbers of chemicals which are used as reagents here. Massy, (10), 35-6 (Russian) 1986. CODEN: PLMSAI. ISSN: 0554-2901. DOCUMENT TYPE: Journal CA Section: 37 (Plastics Manufacture and Processing) IR spectroscopy was used to study the effect of thermal aging at 200° on the structural changes in glass fiber-reinforced epoxy novolak resin UP643 cured with isomethyltetrahydrophthalic anhydride [26590-20-5] in the presence of 1,8-naphthoylene-1',2'-benzimidazole [23749-58-8] catalyst. The shift of the 3480 cm-1 band to the low-frequency region was due to the formation of addnl. H bonds as a result of resin degrdn. during thermal aging. .