Detail of > 522-75-8
- CAS Number:
- 522-75-8
- Name:
Benzo[b]thiophen-3(2H)-one,2-(3-oxobenzo[b]thien-2(3H)-ylidene)-
- Superlist Name:
- Vat Red 41
- Formula:
- C16H8O2S2
- Molecular Structure:
![Molecular Structure of 522-75-8 (Benzo[b]thiophen-3(2H)-one,2-(3-oxobenzo[b]thien-2(3H)-ylidene)-)](http://www.lookchem.com/300w/2010/0621/522-75-8.jpg)
- Synonyms:
- Thioindigo(6CI);[D2,2'(3H,3'H)-Bibenzo[b]thiophene]-3,3'-dione(7CI,8CI);Antinolo Red B;C.I. 73300;C.I. Disperse Red 364;C.I. Solvent Red242;C.I. Vat Red 41;Ciba Pink B;Disperse Red 364;Durindone Printing Red B;Durindone Red B;Durindone Red BP;Helindon Red BB;Isothioindigo;Kenawax Fluorescent Red 3BYP;Plast Red D 54;SamaronBrilliant Pink 5B;Solvent Red 242;Thioindigo Red B;Thioindigo red C;Tyrian Red A 5B;Vat Red 5B;
- Molecular Weight:
- 296.36
- EINECS:
- 208-336-1
- Density:
- 1.544 g/cm3
- Boiling Point:
- 409.2 °C at 760 mmHg
- Flash Point:
- 177 °C
- Risk Codes:
- 36/37/38
- Safety:
- 26-36Details
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Reference
- Synthetic resin microcapsules
- Synthetic resin microcapsules. Maeno, Jun (Japan ). Japan. Kokai JP 52043779 6 Apr 1977 Showa,6 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: B01J013-02. APPLICATION: JP 75-118928 3 Oct 1975. DOCUMENT TYPE: Patent CA Section: 37 (Plastics Fabrication and Uses) A particulate material is coated with a photosensitive synthetic resin compn. and then photoirradiated in disperse phase to give microcapsules. Thus, a mixt. of adipic acid-fumaric acid-polyethylene glycol copolymer [9016-78-8] 100, acrylic acid 20, acrylamide 30, benzoin Me ether [3524-62-7] 0.5, and p-phenylenediamine 0.1 part was stirred to give a photosensitive resin compn., which (3 g) was mixed with 0.7 g thioindigo [522-75-8] powder, stirred, mixed with 200 mL silicone oil, photoirradiated, and sepd., giving photochromic particles.
- Photoisomerization mechanism of thioindigo dyes
- Photoisomerization mechanism of thioindigo dyes. Thioindigo in nonpolar solvents. Karstens, T.; Kobs, K.; Memming, R.; Schroeppel, F. (Philips G.m.b.H. Forschungslab. Hamburg, Hamburg, Ger.). Chem. Phys. Lett., 48(3), 540-4 (English) 1977. CODEN: CHPLBC. DOCUMENT TYPE: Journal CA Section: 40 (Dyes, Fluorescent Whitening Agents, and Photosensitizers) Section cross-reference(s): 22 The photoisomerization of thioindigo [522-75-8] is studied in a methylcyclohexane-toluene mixt. (1:1 by vol.) using fluorescence quantum yield and lifetime measurements over a large temp. range. A model is proposed from which various rate consts. and activation energies can be detd.
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