JPS5230822A - Process for producing stable yellow fluorescein dyestuffs - Google Patents

Process for producing stable yellow fluorescein dyestuffs

Info

Publication number
JPS5230822A
JPS5230822A JP3789475A JP3789475A JPS5230822A JP S5230822 A JPS5230822 A JP S5230822A JP 3789475 A JP3789475 A JP 3789475A JP 3789475 A JP3789475 A JP 3789475A JP S5230822 A JPS5230822 A JP S5230822A
Authority
JP
Japan
Prior art keywords
dyestuffs
fluorescein
producing stable
stable yellow
yellow fluorescein
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP3789475A
Other languages
Japanese (ja)
Other versions
JPS5747695B2 (en
Inventor
Satoshi Hirano
Shigeie Tsumura
Izumi Imazeki
Mariko Ouchi
Toyoaki Yoneda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tsumura and Co
Teijin Ltd
Original Assignee
Teijin Ltd
Tsumura Juntendo Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Teijin Ltd, Tsumura Juntendo Inc filed Critical Teijin Ltd
Priority to JP3789475A priority Critical patent/JPS5230822A/en
Publication of JPS5230822A publication Critical patent/JPS5230822A/en
Publication of JPS5747695B2 publication Critical patent/JPS5747695B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a yellow fluorescein having a high stability at a high concentration and excellent dispersibility in water in high yields by treating fluorescein or uranine under specified conditions.
COPYRIGHT: (C)1977,JPO&Japio
JP3789475A 1975-03-31 1975-03-31 Process for producing stable yellow fluorescein dyestuffs Granted JPS5230822A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3789475A JPS5230822A (en) 1975-03-31 1975-03-31 Process for producing stable yellow fluorescein dyestuffs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3789475A JPS5230822A (en) 1975-03-31 1975-03-31 Process for producing stable yellow fluorescein dyestuffs

Publications (2)

Publication Number Publication Date
JPS5230822A true JPS5230822A (en) 1977-03-08
JPS5747695B2 JPS5747695B2 (en) 1982-10-12

Family

ID=12510236

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3789475A Granted JPS5230822A (en) 1975-03-31 1975-03-31 Process for producing stable yellow fluorescein dyestuffs

Country Status (1)

Country Link
JP (1) JPS5230822A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5513501A (en) * 1964-09-14 1980-01-30 Rca Corp Direct coupled amplifier limiter
JPH04196706A (en) * 1990-11-27 1992-07-16 Matsushita Electric Ind Co Ltd Amplifier for limiter

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5128685A (en) * 1974-09-02 1976-03-11 Sumitomo Electric Industries DENSENSETSUZOKUBUHOGOKI

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5128685A (en) * 1974-09-02 1976-03-11 Sumitomo Electric Industries DENSENSETSUZOKUBUHOGOKI

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5513501A (en) * 1964-09-14 1980-01-30 Rca Corp Direct coupled amplifier limiter
JPS5838969B2 (en) * 1964-09-14 1983-08-26 ア−ルシ−エ− コ−ポレ−ション Direct amplification limiting circuit
JPH04196706A (en) * 1990-11-27 1992-07-16 Matsushita Electric Ind Co Ltd Amplifier for limiter

Also Published As

Publication number Publication date
JPS5747695B2 (en) 1982-10-12

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