CH226832A - Process for the preparation of a 5-pyrazolone-4-sulfonic acid. - Google Patents

Process for the preparation of a 5-pyrazolone-4-sulfonic acid.

Info

Publication number
CH226832A
CH226832A CH226832DA CH226832A CH 226832 A CH226832 A CH 226832A CH 226832D A CH226832D A CH 226832DA CH 226832 A CH226832 A CH 226832A
Authority
CH
Switzerland
Prior art keywords
pyrazolone
preparation
sulfonic acid
sulfonic
acid
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH226832A publication Critical patent/CH226832A/en

Links

CH226832D 1941-06-11 1941-06-11 Process for the preparation of a 5-pyrazolone-4-sulfonic acid. CH226832A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH224208T 1941-06-11

Publications (1)

Publication Number Publication Date
CH226832A true CH226832A (en) 1943-04-30

Family

ID=4453428

Family Applications (5)

Application Number Title Priority Date Filing Date
CH226832D CH226832A (en) 1941-06-11 1941-06-11 Process for the preparation of a 5-pyrazolone-4-sulfonic acid.
CH226830D CH226830A (en) 1941-06-11 1941-06-11 Process for the preparation of a 5-pyrazolone-4-sulfonic acid.
CH226831D CH226831A (en) 1941-06-11 1941-06-11 Process for the preparation of a 5-pyrazolone-4-sulfonic acid.
CH226828D CH226828A (en) 1941-06-11 1941-06-11 Process for the preparation of a 5-pyrazolone-4-sulfonic acid.
CH226829D CH226829A (en) 1941-06-11 1941-06-11 Process for the preparation of a 5-pyrazolone-4-sulfonic acid.

Family Applications After (4)

Application Number Title Priority Date Filing Date
CH226830D CH226830A (en) 1941-06-11 1941-06-11 Process for the preparation of a 5-pyrazolone-4-sulfonic acid.
CH226831D CH226831A (en) 1941-06-11 1941-06-11 Process for the preparation of a 5-pyrazolone-4-sulfonic acid.
CH226828D CH226828A (en) 1941-06-11 1941-06-11 Process for the preparation of a 5-pyrazolone-4-sulfonic acid.
CH226829D CH226829A (en) 1941-06-11 1941-06-11 Process for the preparation of a 5-pyrazolone-4-sulfonic acid.

Country Status (1)

Country Link
CH (5) CH226832A (en)

Also Published As

Publication number Publication date
CH226828A (en) 1943-04-30
CH226829A (en) 1943-04-30
CH226830A (en) 1943-04-30
CH226831A (en) 1943-04-30

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