Compound Q&A
What are the physical and chemical properties of 2-[(1E)-2-[(3E)-2-chloro-3-{2-[(2E)-1,3,3-trimethyl-2,3-dihydro-1H-indol-2-ylidene]ethylidene}cyclohex-1-en-1-yl]ethenyl]-1,3,3-trimethyl-3H-indol-1-ium 4-methylbenzene-1-sulfonate (CAS: 205744-92-9)?
Answer
![2-[(1E)-2-[(3E)-2-chloro-3-{2-[(2E)-1,3,3-trimethyl-2,3-dihydro-1H-indol-2-ylidene]ethylidene}cyclohex-1-en-1-yl]ethenyl]-1,3,3-trimethyl-3H-indol-1-ium 4-methylbenzene-1-sulfonate](https://static.chemtradehub.com/structs/205/205744-92-9-3df1.webp "2-[(1E)-2-[(3E)-2-chloro-3-{2-[(2E)-1,3,3-trimethyl-2,3-dihydro-1H-indol-2-ylidene]ethylidene}cyclohex-1-en-1-yl]ethenyl]-1,3,3-trimethyl-3H-indol-1-ium 4-methylbenzene-1-sulfonate")
The compound is a crystalline solid with a high molecular weight. It has a low solubility in water but is soluble in organic solvents. Chemically, it is highly reactive due to the presence of a chloro group and an indolone moiety. It exhibits strong UV absorption and fluorescence properties, making it suitable for analytical applications.
About
CAS No
205744-92-9
English Name
2-[(1E)-2-[(3E)-2-chloro-3-{2-[(2E)-1,3,3-trimethyl-2,3-dihydro-1H-indol-2-ylidene]ethylidene}cyclohex-1-en-1-yl]ethenyl]-1,3,3-trimethyl-3H-indol-1-ium 4-methylbenzene-1-sulfonate
Molecular Formula
C39H43ClN2O3S
Molecular Weight
655.3 g/mol
SMILES
CC1=CC=C(C=C1)S(=O)(=O)[O-].CC1(C2=CC=CC=C2[N+](=C1C=CC3=C(C(=CC=C4C(C5=CC=CC=C5N4C)(C)C)CCC3)Cl)C)C
InChIKey
YFKQZQGXOIXGEE-UHFFFAOYSA-M
Last Updated: 2025-10-29 13:16
![2-[(1E)-2-[(3E)-2-chloro-3-{2-[(2E)-1,3,3-trimethyl-2,3-dihydro-1H-indol-2-ylidene]ethylidene}cyclohex-1-en-1-yl]ethenyl]-1,3,3-trimethyl-3H-indol-1-ium 4-methylbenzene-1-sulfonate — HuBeiJiFeiYiYao Chemical Co Ltd](https://static.chemtradehub.com/suppliers/67cecc092b2de6e8e95a5bbb/67cecc092b2de6e8e95a5bbb-logo.webp){kind=logo}
![2-[(1E)-2-[(3E)-2-chloro-3-{2-[(2E)-1,3,3-trimethyl-2,3-dihydro-1H-indol-2-ylidene]ethylidene}cyclohex-1-en-1-yl]ethenyl]-1,3,3-trimethyl-3H-indol-1-ium 4-methylbenzene-1-sulfonate — Hubei Dahao Chemical Co., Ltd.](https://static.chemtradehub.com/suppliers/67ce362d57537e5c8069b51b/67ce362d57537e5c8069b51b-logo.webp){kind=logo}
![2-[(1E)-2-[(3E)-2-chloro-3-{2-[(2E)-1,3,3-trimethyl-2,3-dihydro-1H-indol-2-ylidene]ethylidene}cyclohex-1-en-1-yl]ethenyl]-1,3,3-trimethyl-3H-indol-1-ium 4-methylbenzene-1-sulfonate — Jin Jinle (Hunan) Chemical Co., Ltd.](https://static.chemtradehub.com/suppliers/67ce76192b2de6e8e95a464e/67ce76192b2de6e8e95a464e-logo.webp){kind=logo}