发明授权
- 专利标题: Xanthene compounds
- 专利标题(中): 呫吨化合物
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申请号: US194464申请日: 1980-10-06
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公开(公告)号: US4310673A公开(公告)日: 1982-01-12
- 发明人: James W. Foley , Louis Locatell, Jr. , Charles M. Zepp
- 申请人: James W. Foley , Louis Locatell, Jr. , Charles M. Zepp
- 申请人地址: MA Cambridge
- 专利权人: Polaroid Corporation
- 当前专利权人: Polaroid Corporation
- 当前专利权人地址: MA Cambridge
- 主分类号: C07D513/10
- IPC分类号: C07D513/10 ; C09B11/24 ; C09B11/28 ; G03C1/83 ; G03C8/48 ; C07D275/04
摘要:
The present invention is concerned with novel xanthene compounds of the formula ##STR1## wherein R is hydrogen or alkyl, which compounds are useful in photographic products and processes.
公开/授权文献
- US5449938A MOS-controlled power semiconductor component 公开/授权日:1995-09-12
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