FR917626A - O, o'-di-hydroxy-azo dyes and process for their preparation - Google Patents

O, o'-di-hydroxy-azo dyes and process for their preparation

Info

Publication number
FR917626A
FR917626A FR917626DA FR917626A FR 917626 A FR917626 A FR 917626A FR 917626D A FR917626D A FR 917626DA FR 917626 A FR917626 A FR 917626A
Authority
FR
France
Prior art keywords
hydroxy
preparation
azo dyes
azo
dyes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novartis AG
Original Assignee
JR Geigy AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JR Geigy AG filed Critical JR Geigy AG
Application granted granted Critical
Publication of FR917626A publication Critical patent/FR917626A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B45/00—Complex metal compounds of azo dyes
    • C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
    • C09B45/14—Monoazo compounds
    • C09B45/16—Monoazo compounds containing chromium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
FR917626D 1944-02-21 1945-08-14 O, o'-di-hydroxy-azo dyes and process for their preparation Expired FR917626A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH917626X 1944-02-21

Publications (1)

Publication Number Publication Date
FR917626A true FR917626A (en) 1947-01-16

Family

ID=4547940

Family Applications (1)

Application Number Title Priority Date Filing Date
FR917626D Expired FR917626A (en) 1944-02-21 1945-08-14 O, o'-di-hydroxy-azo dyes and process for their preparation

Country Status (1)

Country Link
FR (1) FR917626A (en)

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