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发明名称
HETEROCYCLIC PIGMENTS
摘要
A compound of formula I <IMAGE> in which each R1 independently is selected from oxygen, =NH or =N-R2 where R2 is an aromatic or heteroaromatic group, provided not more than two groups R1 are selected from oxygen and =NH.
申请公布号
GB2217339(B)
申请公布日期
1992.08.12
申请号
GB19890008744
申请日期
1989.04.18
申请人
* SANDOZ LTD
发明人
PETER * BITTERLI;BANSI LAL * KAUL
分类号
C08K5/3412;C08K5/3417;C09B57/00;C09B57/08
主分类号
C08K5/3412
代理机构
代理人
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