US5378634A
Expired / Lapsed
US
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Labelling color for detecting methamphetamine
Assignee: Panasonic Holdings Corp
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Filing: 1993-08-05
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Granted: 1995-01-03
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Expires: 2013-08-05
Abstract
Abstract A labelling color which includes a pentamethine of the following formula (1): ##STR1## wherein R 1 , R 2 , R 3 and R 4 each are a C 1-6 alkyl group, and X is an anion.
Inventors
- 👤 Nobuyuki Sigetoh
- 👤 Jinsei Miyazaki
- 👤 Hiroshi Nakayama
- 👤 Keiko Yugawa
- 👤 Tadayasu Mitsumata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:01
CPC Classifications
C; C09; C09B; C09B23/00; C09B23/02; C09B23/08; C09B23/083; G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/58; G01N33/582; Y; Y10; Y10S; Y10S435/00; Y10S435/968; Y10S436/00; Y10S436/815; Y10S436/816; Y10S436/901; Y10T; Y10T436/00; Y10T436/14
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
37 words
A labelling color comprising a pentamethine derivative of the following Formula (1): ##STR10## wherein R 1 , R 2 , R 3 and R 4 each are a C 1-6 alkyl group, and X is an anion.
Claim 2
Dependent Claim
37 words
A labelling color comprising a pentamethine derivative of the following Formula (1): ##STR10## wherein R 1 , R 2 , R 3 and R 4 each are a C 1-6 alkyl group, and X is an anion.
Claim 3
Dependent Claim
18 words
A labelling color comprising a pentamethine derivative of the following Formula (6): ##STR11## wherein X is an anion.
Claim 4
Dependent Claim
18 words
A labelling color comprising a pentamethine derivative of the following Formula (6): ##STR11## wherein X is an anion.
Claim 5
Independent Claim
145 words
A method of using a labelling color to detect methamphetamine, comprising the steps of adding the labelling compound of either Formula (1) or (6) to a first solution of methamphetamine antibody to form a labelling compound-methamphetamine antibody complex measuring the fluorescence of the first solution at a wavelength of 600-700 nm, adding a sample containing an unknown amount of methamphetamine to the first solution to form a second solution, measuring the fluorescence of the second solution wavelength of 600-700 nm, and correlating any change fluorescence between the first and second solutions to the concentration of methamphetamine in the sample, wherein the compound of Formula (1) is: ##STR12## wherein R 1 , R 2 , R 3 and R 4 each are a C 1-6 alkyl group and X is an anion, and wherein the compound of Formula (6) is: ##STR13## wherein X is an anion.
Claim 6
Independent Claim
145 words
A method of using a labelling color to detect methamphetamine, comprising the steps of adding the labelling compound of either Formula (1) or (6) to a first solution of methamphetamine antibody to form a labelling compound-methamphetamine antibody complex measuring the fluorescence of the first solution at a wavelength of 600-700 nm, adding a sample containing an unknown amount of methamphetamine to the first solution to form a second solution, measuring the fluorescence of the second solution wavelength of 600-700 nm, and correlating any change fluorescence between the first and second solutions to the concentration of methamphetamine in the sample, wherein the compound of Formula (1) is: ##STR12## wherein R 1 , R 2 , R 3 and R 4 each are a C 1-6 alkyl group and X is an anion, and wherein the compound of Formula (6) is: ##STR13## wherein X is an anion.
References Cited (Backward Citations)
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