FR2320941B1 - - Google Patents
Info
- Publication number
- FR2320941B1 FR2320941B1 FR7624655A FR7624655A FR2320941B1 FR 2320941 B1 FR2320941 B1 FR 2320941B1 FR 7624655 A FR7624655 A FR 7624655A FR 7624655 A FR7624655 A FR 7624655A FR 2320941 B1 FR2320941 B1 FR 2320941B1
- Authority
- FR
- France
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C309/00—Sulfonic acids; Halides, esters, or anhydrides thereof
- C07C309/01—Sulfonic acids
- C07C309/28—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
- C07C309/45—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton
- C07C309/46—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton having the sulfo groups bound to carbon atoms of non-condensed six-membered aromatic rings
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9752075A JPS5223053A (en) | 1975-08-13 | 1975-08-13 | Preparation of 4,4'-diaminostilbene- 2,2'-disulfonic acid and its salt s |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2320941A1 FR2320941A1 (fr) | 1977-03-11 |
| FR2320941B1 true FR2320941B1 (en:Method) | 1979-09-28 |
Family
ID=14194522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7624655A Granted FR2320941A1 (fr) | 1975-08-13 | 1976-08-12 | Procede de preparation de l'acide 4,4'-diaminostilbene-2,2'-disulfonique et de ses sels |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS5223053A (en:Method) |
| CH (1) | CH615416A5 (en:Method) |
| DE (1) | DE2635852C2 (en:Method) |
| FR (1) | FR2320941A1 (en:Method) |
| GB (1) | GB1501070A (en:Method) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2455394B2 (de) * | 1973-12-03 | 1977-06-02 | Sumitomo Chemical Co., Ltd., Osaka (Japan) | Verfahren zur herstellung von dinatrium-4,4'-diaminostilben-2,2'-disulfonat |
-
1975
- 1975-08-13 JP JP9752075A patent/JPS5223053A/ja active Granted
-
1976
- 1976-08-10 DE DE19762635852 patent/DE2635852C2/de not_active Expired
- 1976-08-11 GB GB3168576A patent/GB1501070A/en not_active Expired
- 1976-08-12 FR FR7624655A patent/FR2320941A1/fr active Granted
- 1976-08-12 CH CH1030876A patent/CH615416A5/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| FR2320941A1 (fr) | 1977-03-11 |
| GB1501070A (en) | 1978-02-15 |
| DE2635852A1 (de) | 1977-02-24 |
| JPS5238031B2 (en:Method) | 1977-09-27 |
| CH615416A5 (en) | 1980-01-31 |
| DE2635852C2 (de) | 1986-09-18 |
| JPS5223053A (en) | 1977-02-21 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |