Patent CH501715A successfully refreshed from Google Patents.
CH501715A
Expired / Lapsed
CH
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1,2 chromium monazo dye complex
Assignee: Sandoz Ag
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Filing: 1968-10-30
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Granted: —
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Expires: 1988-10-30
Abstract
Abstract Cr complex of reactive monoazo cpds. : (where X is H, Cl, Br, F or lower alkyl; R1 is H, halogen, NO2, -COOH, -SO3H or opt. substd. sulphonamide; R2. is H, or opt. substd. lower alkyl; n is 1 or 2) and the monoazo cpd. contains at most 2 -SO3H gps., are manufactured by reacting 1 mol. : with 1 mol.
Inventors
- 👤 Schneider Lukas
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-11-09 17:12
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/02; C09B62/20; C09B62/24; C09B62/255
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