3'-Hydroxy-chinophthalon-Farbstoffe
1,267,017. Quinophthalone dyes. FARBENFABBIKEN BAYER A.G. 19 Nov., 1970 [19 Nov., 1969], No. 55071/70. Heading C4P. 31-Hydroxy-quinophthalone dyestuffs which are free from sulphonic acid groups are of the general formula in which R 1 and R 2 , independently of each other, -stand for a C 1 -C 17 alky...
Saved in:
Main Authors | , , |
---|---|
Format | Patent |
Language | German |
Published |
19.05.1971
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Be the first to leave a comment!