Claims
- 1. A disazo compound of the formula (I) ##STR11## wherein: D is naphthyl;
- M is hydrogen or a salt-forming metal;
- m is 1, 2, or 3; and
- the group --SO.sub.3 M on the 1,4-naphthalene is attached to this 1,4-naphthalene in position 6, 7 or 8.
- 2. A disazo compound as claimed in claim 1, wherein D is 2-naphthyl, and m is 2 or 3.
- 3. A disazo compound as claimed in claim 1, wherein m is 3.
- 4. A disazo compound as claimed in claim 1, wherein said salt-forming metal is an alkali metal.
Priority Claims (1)
Number |
Date |
Country |
Kind |
42 39 519.4 |
Nov 1992 |
DEX |
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Parent Case Info
This is a continuation of our application Ser. No. 08/156,300, filed Nov. 23, 1993, now abandoned.
US Referenced Citations (4)
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EPX |
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Non-Patent Literature Citations (1)
Entry |
Patent Abstracts of Japan, vol. 11, No. 30, Jan. 29, 1987. |
Continuations (1)
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Number |
Date |
Country |
Parent |
156300 |
Nov 1993 |
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