Claims
- 1. A compound of the formula ##SPC11##
- in which R.sub.1 and R.sub.2 are C.sub.1 -C.sub.3 -alkyl or C.sub.1 -C.sub.3 alkyl substituted by chloro, bromo, hydroxy or cyano; and
- R.sub.3 is hydrogen; C.sub.1 -C.sub.5 -alkyl; or C.sub.1 -C.sub.5 alkyl substituted with hydroxy, lower alkoxy, or lower alkoxy lower alkoxy.
- 2. The compound of claim 1 in which R.sub.3 is hydrogen; C.sub.1 -C.sub.5 -alkyl; C.sub.1 -C.sub.5 -alkyl substituted with hydroxy, methoxy, ethoxy, methoxyethoxy or ethoxyethoxy.
- 3. The compound of claim 1 in which R.sub.3 is hydrogen; C.sub.1 -C.sub.5 -alkyl; hydroxyethyl, .beta.-methoxyethyl, .beta.-ethoxyethyl, .beta.-(.beta.'-methoxy-ethoxy)-ethyl or .beta.-(.beta.'ethoxy-ethoxy)-ethyl.
- 4. The compound of claim 1 in which R.sub.3 is hydrogen.
- 5. The compound of claim 1, 1-isopropylamino-5-hydroxy-anthraquinone.
Priority Claims (3)
Number |
Date |
Country |
Kind |
1932646 |
Jun 1969 |
DT |
|
2013789 |
Mar 1970 |
DT |
|
2013790 |
Mar 1970 |
DT |
|
Parent Case Info
This is a division of application Ser. No. 49,526, filed Jun 24, 1970, now U.S. Pat. No. 3,686,232.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
3686232 |
Hohmann et al. |
Aug 1972 |
|
Foreign Referenced Citations (1)
Number |
Date |
Country |
1,932,646 |
Apr 1971 |
DT |
Divisions (1)
|
Number |
Date |
Country |
Parent |
49526 |
Jun 1970 |
|