Title:
COLORANT FOR FLUORESCENT LABELING AND FLUORESCENT LABELING AGENT
Document Type and Number:
WIPO Patent Application WO/2023/058679
Kind Code:
A1
Abstract:
A colorant for fluorescent labeling which has an absorbance retention calculated with equation (I) of 0.5 or greater. When the colorant for fluorescent labeling is dissolved in an organic solvent and the resultant colorant solution is added to phosphate-buffered saline (PBS), then the resultant colorant dispersion (colorant dispersion I) contains dispersed colorant droplets formed therein which have an average droplet diameter of 500 nm or less. Equation (I): Absorbance retention = A1/A0 [In equation (I), A0 indicates the absorbance, at a maximum-absorption wavelength, of the colorant solution (colorant solution I) obtained by dissolving the colorant for fluorescent labeling in the organic solvent and A1 indicates the absorbance, at a maximum-absorption wavelength, of the colorant dispersion (colorant dispersion II) obtained by adding the solution of the colorant for fluorescent labeling to PBS, the colorant solution I and the colorant dispersion II being equal in colorant concentration.]
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Inventors:
YAMAMOTO RYUTARO (JP)
MINASHIMA HIDENORI (JP)
KAWAUCHI HIROAKI (JP)
MINASHIMA HIDENORI (JP)
KAWAUCHI HIROAKI (JP)
Application Number:
PCT/JP2022/037255
Publication Date:
April 13, 2023
Filing Date:
October 05, 2022
Export Citation:
Assignee:
TOYO INK SC HOLDINGS CO LTD (JP)
International Classes:
C09B47/067; C09B47/18; C09B47/24; C09B47/30; C09B57/00; C09K11/06; G01N21/78
Domestic Patent References:
| WO2021201284A1 | 2021-10-07 | |||
| WO2004038378A2 | 2004-05-06 |
Foreign References:
| JPH05163439A | 1993-06-29 | |||
| JP2019172826A | 2019-10-10 | |||
| JP2020177014A | 2020-10-29 | |||
| US20120323164A1 | 2012-12-20 | |||
| JP2020023676A | 2020-02-13 | |||
| JP2021193353A | 2021-12-23 | |||
| JP2019172826A | 2019-10-10 | |||
| JP2021164190A | 2021-10-11 |
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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