Claims
- 1. A triphenylmethane compound having the formula ##STR11## in which X represents hydrogen or the group SO.sub.3 M;
- Y represents hydrogen or hydroxy; and
- M represents an alkali metal cation, an ammonium cation or an alkaline earth metal cation.
- 2. A triphenylmethane compound according to claim 1 wherein X and Y are each hydrogen.
- 3. A triphenylmethane compound according to claim 1 wherein X represents SO.sub.3 M and Y is hydrogen.
- 4. A triphenylmethane compound according to claim 1 wherein X represents SO.sub.3 M and Y represents OH.
CROSS REFERENCE TO RELATED APPLICATIONS
This application is a division of our prior copending application Ser. No. 559,999, filed Dec. 9, 1983 and now U.S. Pat. No. 4,536,367.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
4536367 |
Hung et al. |
Aug 1985 |
|
4536368 |
Hung et al. |
Aug 1985 |
|
4566999 |
Engelmann |
Jan 1986 |
|
Divisions (1)
|
Number |
Date |
Country |
Parent |
559999 |
Dec 1985 |
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