Dye|Dye intermediates|Fluorescent Brightener|pigment dye

4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid

Name: 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid

CA Name: 2,7-Naphthalenedisulfonic acid,4-amino-5 -hydroxy- ,monsodium salt

Molecular Structure:

4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid,2,7-Naphthalenedisulfonic acid,4-amino-5 -hydroxy- ,monsodium salt,CAS 5460-09-3,319.31,C10H9NO7S2

Molecular Formula:C₁₀H₉NO₇S₂

Molecular Weight: 319.31

CAS Registry Number: 5460-09-3

List of synthetic dyes :

C.I.Reactive Orange 96

C.I.Reactive Black 5

C.I.Reactive Red 108

C.I.Reactive Red 120

C.I.Reactive Red 152

C.I.Reactive Red 194

C.I.Reactive Red 198

C.I.Reactive Red 219

C.I.Reactive Red 231

C.I. Reactive Red 24:1

C.I.Reactive Red 250

C.I.Reactive Red 256

C.I.Reactive Red 3

C.I.Reactive Red 45:1

C.I.Reactive Red 92

C.I.Reactive Blue 171

C.I.Reactive Blue 213

C.I.Reactive Blue 225

C.I.Reactive Black 39

C.I.Reactive Black 8

C.I.Reactive Red 11

C.I.Reactive Red 125

C.I.Reactive Red 17

C.I.Reactive Red 195

C.I.Reactive Red 2

C.I.Reactive Red 221

C.I.Reactive Red 239

C.I.Reactive Red 240

C.I.Reactive Red 252

C.I.Reactive Red 261

C.I.Reactive Red 31

C.I.Reactive Red 79

C.I.Reactive Blue 109

C.I.Reactive Blue 173

C.I.Reactive Blue 214

C.I.Reactive Blue 238

C.I.Reactive Black 42

C.I.Reactive Red 1

C.I.Reactive Red 12

C.I.Reactive Red 141

C.I.Reactive Red 189

C.I.Reactive Red 196

C.I.Reactive Red 201

C.I.Reactive Red 227

C.I.Reactive Red 24

C.I.Reactive Red 241

C.I.Reactive Red 253

C.I.Reactive Red 29

C.I.Reactive Red 45

C.I.Reactive Red 88

C.I.Reactive Blue 13

C.I.Reactive Blue 194

C.I.Reactive Blue 222

C.I.Reactive Blue 250

C.I.Reactive Blue 256

C.I.Reactive Violet 1

C.I.Reactive Violet 46

C.I.Mordant Green 11

C.I.Mordant Green 36

C.I.Food Red 12

C.I.Acid Black 210

C.I.Acid Black 241

C.I.Acid Black 32

C.I.Acid Black 69

C.I.Acid Black 94

C.I.Acid Red 264

Acid Blue 128

C.I.Acid Blue 6

Acid Blue 89

C.I.Acid Green 20

C.I.Acid Violet 5

C.I.Acid Brown 121

C.I.Acid Brown 235

C.I.Acid Brown 470

C.I.Acid Brown 75

C.I.Direct Black 100

C.I.Direct Black 13

C.I.Direct Black 15

C.I.Direct Black 166

C.I.Direct Black 19

C.I.Direct Black 30

C.I.Direct Black 4

C.I.Direct Red 11

C.I.Direct Blue 11

C.I.Direct Blue 176

C.I.Direct Blue 21

C.I.Direct Blue 230

C.I.Direct Blue 39

C.I.Direct Blue 51

C.I.Direct Blue 67

C.I.Direct Green 10

C.I.Direct Green 26

C.I.Direct Green 7

C.I.Direct Violet 89

C.I.Direct Violet 83

C.I.Direct Brown 159

C.I.Direct Brown 33

C.I.Direct Brown 52

C.I.Direct Brown 75

C.I.Reactive Blue 81

C.I.Reactive Violet 1

C.I.Reactive Violet 8

C.I.Mordant Green 17

C.I.Mordant Brown 7

C.I.Acid Black 1

C.I.Acid Black 232

C.I.Acid Black 242

C.I.Acid Black 41

C.I.Acid Black 70

C.I.Acid Red 106

C.I.Acid Red 265

Acid Blue 21

C.I.Acid Yellow 70

Acid Blue 92

C.I.Acid Green 33

C.I.Acid Violet 54

C.I.Acid Brown 214

C.I.Acid Brown 440

C.I.Acid Brown 471

C.I.Acid Brown 85

C.I.Direct Black 11

C.I.Direct Black 131

C.I.Direct Black 154

C.I.Direct Black 170

C.I.Direct Black 20

C.I.Direct Black 34

C.I.Direct Black 41

C.I.Direct Red 89

C.I.Direct Blue 14

C.I.Direct Blue 19

C.I.Direct Blue 218

C.I.Direct Blue 295

C.I.Direct Blue 43

C.I.Direct Blue 6

C.I.Direct Blue 81

C.I.Direct Green 12

C.I.Direct Green 59

C.I.Direct Green 8

C.I.Direct Green 9

C.I.Direct Violet 88

C.I.Direct Brown 165

C.I.Direct Brown 43

C.I.Direct Brown 70

C.I.Reactive Green 19

C.I.Reactive Violet 33

C.I.Mordant Blue 82

C.I.Mordant Green 28

C.I.Solvent Blue 37

C.I.Acid Black 18

C.I.Acid Black 234

C.I.Acid Black 28

C.I.Acid Black 66

C.I.Acid Black 93

C.I.Acid Red 249

C.I.Acid Red 33

Acid Blue 29

Acid Blue 87

C.I.Acid Green 19

C.I.Acid Violet 2

C.I.Acid Brown 113

C.I.Acid Brown 216

C.I.Acid Brown 453

C.I.Acid Brown 472

C.I.Acid Brown 92

C.I.Direct Black 122

C.I.Direct Black 14

C.I.Direct Black 155

C.I.Direct Black 171

C.I.Direct Black 28

C.I.Direct Black 38

C.I.Direct Black 83

C.I.Direct Yellow 79

C.I.Direct Blue 15

C.I.Direct Blue 2

C.I.Direct Blue 23

C.I.Direct Blue 38

C.I.Direct Blue 48

C.I.Direct Blue 64

C.I.Direct Green 1

C.I.Direct Green 19

C.I.Direct Green 6

C.I.Direct Green 85

C.I.Direct Violet 57

C.I.Direct Brown 127

C.I.Direct Brown 215

C.I.Direct Brown 51

C.I.Direct Brown 73

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This entry was posted on Wednesday, May 29th, 2013 at 7:08 AM and is filed under Dye intermediates. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

45 Responses to “4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid”

1. Reactive Red 1 on August 30th, 2013 at 3:35 AM

   […] Methods :  4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid and 2,4,6-Trichloro-1,3,5-triazine condensation, 2-Aminobenzenesulfonic acid diazo, and […]

2. Reactive Red 2 on August 30th, 2013 at 3:35 AM

   […] Methods : aniline diazo, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid coupling, and then and 2,4,6-Trichloro-1,3,5-triazine condensation […]

3. Reactive Red 24 on August 30th, 2013 at 7:40 AM

   […] Methods : 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acidand 2,4,6-Trichloro-1,3,5-triazine condensation, 2-Aminobenzenesulfonic acid diazo, coupled with […]

4. Reactive Red 29 on August 30th, 2013 at 7:54 AM

   […] Methods : 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acidand 2,4,6-Trichloro-1,3,5-triazine condensation, 2-Aminobenzenesulfonic acid diazo, coupled with […]

5. Reactive Red 31 on August 30th, 2013 at 7:56 AM

   […] Methods : Vomit’s acid diazo, and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acidcoupling, and 2,4,6-Trichloro-1,3,5-triazine condensation, again with 2-Amino-5-sulfobenzoic […]

6. Reactive Red 125 on September 2nd, 2013 at 5:37 AM

   […] Methods : 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acidand 2,4,6-Trichloro-1,3,5-triazine condensation, aniline diazo, and condensation products coupled, […]

7. Reactive Red 141 on September 2nd, 2013 at 5:53 AM

   […] Methods : 2-Aminonaphthalene-1-sulfonic acid sulfonated, diazotization, and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid coupling, and 2,4,6-Trichloro-1,3,5-triazine first condensation, its product (2 Moore) and […]

8. Reactive Red 195 on September 2nd, 2013 at 6:55 AM

   […] Methods : 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acidand 2,4,6-Trichloro-1,3,5-triazine first condensation, and a second time between ester condensation, […]

9. Reactive Red 196 on September 2nd, 2013 at 7:04 AM

   […] Methods : 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acidand 2,4,6-Trichloro-1,3,5-triazine condensation chlorine, 2-Aminonaphthalene-1-sulfonic acid diazo, […]

10. Reactive Red 250 on September 3rd, 2013 at 1:44 AM

    […] Methods : 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid and 2,4,6-Trichloro-1,3,5-triazine condensation, 2-Aminonaphthalene-1-sulfonic acid diazo, and […]

11. Reactive Red 256 on September 3rd, 2013 at 1:55 AM

    […] Methods : 2-Amino-5-methylbenzenesulfonic acid diazo, and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid coupling, and 2,4,6-Trichloro-1,3,5-triazine condensation, and then and N-ethylbenzenamine […]

12. Reactive Violet 4 on September 3rd, 2013 at 2:19 AM

    […] Methods : 2-(3-Amino-4-methoxyphenylsulfonyl)ethyl hydrogen sulfate diazo, and N acetyl 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid coupling, and then the transformation of 1:1 copper […]

13. Reactive Violet 33 on September 3rd, 2013 at 2:29 AM

    […] Methods : 2-Amino-5-nitrophenol diazo, and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid coupling, reduction, and 5-Chloro-2,4,6-trifluoropyrimidine condensation and transformed into a […]

14. Reactive Blue 13 on September 3rd, 2013 at 3:13 AM

    […] Methods : 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid and 2,4,6-Trichloro-1,3,5-triazine first condensation, 3-Amino-4-hydroxynaphthalene-1,5-disulfonic […]

15. Acid Blue 70 on September 22nd, 2013 at 6:44 AM

    […] Methods : 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid diazo, and 5-Aminonaphthalen-1-ol in acetic acid medium […]

16. Acid Blue 89 on September 22nd, 2013 at 7:37 AM

    […] Methods : 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid diazo, and 8-(P-toluidino)naphthalene-1-sulfonic […]

17. Acid Blue 92 on September 22nd, 2013 at 7:51 AM

    […] Methods : 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid diazo, and  8-Aminonaphthalene-1-sulfonic acid  […]

18. Acid Green 33 on September 24th, 2013 at 4:31 AM

    […] Methods : 4-Nitrobenzenamine diazo, in acid conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid coupling, its product in alkaline conditions again with the diazo 4-(Phenyldiazenyl)benzenamine […]

19. Acid Brown 75 on September 24th, 2013 at 7:27 AM

    […] Methods :   4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid diazo, in weak alkali conditions Coupled with resorcinol, 2-Amino-4,6-dinitrophenol diazo, in weak […]

20. Acid Brown 85 on September 24th, 2013 at 7:38 AM

    […] Methods :   4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid diazo, Coupled with resorcinol, its products and 2 Moore’s diazo […]

21. Acid Brown 121 on September 24th, 2013 at 8:22 AM

    […] Methods :   4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid diazo, Coupled with resorcinol, 4-Nitrobenzenamine diazo, and the generation of single […]

22. Acid Brown 235 on September 25th, 2013 at 3:05 AM

    […] Methods :   4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid diazo, Coupled with resorcinol; 4-Nitrobenzenamine and 4-nitro-4′-aminoazobenzene-2-sulfonic […]

23. Acid Brown 470 on September 25th, 2013 at 6:10 AM

    […] Methods : 4-Amino-5-hydroxynaphthalene-2,7-disulfonic aciddiazo, Coupled with resorcinol, then respectively and diazo of 4-Nitrobenzenamine and […]

24. Acid Brown 471 on September 25th, 2013 at 6:12 AM

    […] Methods : 4-Amino-5-hydroxynaphthalene-2,7-disulfonic aciddiazo, Coupled with resorcinol, then respectively and diazo of 4-Nitrobenzenamine and […]

25. Acid Brown 472 on September 25th, 2013 at 6:13 AM

    […] Methods : 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid diazo,and Resorcinol coupled, then respectively and diazo of 4-Nitrobenzenamine and […]

26. Acid Black 28 on September 25th, 2013 at 7:16 AM

    […] Methods : 2-Methyl-5-nitrobenzenamine diazo, in acid conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acidcoupling, and then aniline diazo, in alkaline conditions and formation of single accidentally […]

27. Acid Black 66 on September 25th, 2013 at 7:51 AM

    […] Methods : 4-(4-Aminophenyl)benzenamine double nitriding, in acid conditions coupled with 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid, 2,5-Diaminobenzenesulfonic acid diazo, in alkaline conditions and the above the products of […]

28. Acid Black 69 on September 25th, 2013 at 7:53 AM

    […] Methods : 4-(4-Aminophenyl)benzenamine double nitriding, in acid conditions coupled with 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid, 2-Aminobenzenesulfonic acid diazo, in alkaline conditions and the product of the above-mentioned […]

29. Acid Black 93 on September 25th, 2013 at 8:01 AM

    […] Methods : 4-(4-Aminophenyl)benzenamine double nitriding, first in acid conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid coupling, and again between Benzene-1,4-diamine coupling,N-(4-aminophenyl)acetamide(2 Moore) […]

30. Acid Black 94 on September 25th, 2013 at 8:05 AM

    […] Methods : 4-(4-Aminophenyl)benzenamine double nitriding, in acid conditions coupled with 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid, 2-Aminobenzenesulfonic acid diazo, in alkaline conditions and the above the products of coupling, […]

31. Direct Yellow 79 on September 27th, 2013 at 3:19 AM

    […] Methods :  4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid diazo, and 2-Amino-4-methylanisole coupling, and then the light […]

32. Direct Violet 57 on October 8th, 2013 at 7:04 AM

    […] Methods :  4-Amino-5-hydroxynaphthalene-2,7-disulfonic aciddiazo, and 2,5-Dimethylbenzenamine coupling, its product to diazo, in alkaline conditions and […]

33. Direct Blue 15 on October 9th, 2013 at 6:02 AM

    […] Methods : 3,3′-Dimethoxylbenzidine double nitriding, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid(2 Moore) […]

34. Direct Blue 38 on October 9th, 2013 at 7:19 AM

    […] 4-(4-Aminophenyl)benzenamine double nitriding, first in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acidcoupling, again in alkaline conditions and accidentally coupled nitrogen […]

35. Direct Blue 295 on October 11th, 2013 at 3:08 AM

    […] Methods :  3,3′-Dimethylbenzidine double nitriding, in alkaline conditions first and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid coupling, and then in alkaline conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid […]

36. Direct Black 15 on October 12th, 2013 at 7:33 AM

    […] Methods : 4-(4-Aminophenyl)benzenamine double nitriding, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid coupling, and then in alkaline conditions and 6-(Ethylamino)-4-hydroxynaphthalene-2-sulfonic […]

37. Food Red 12 on November 12th, 2013 at 2:12 AM

    […] Manufacturing Methods : aniline diazo, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid coupling. […]

38. Reactive Red 108 on November 13th, 2013 at 2:31 AM

    […] Methods : 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid and 2,4,6-Trichloro-1,3,5-triazine condensation, 4-Aminobenzoic acid diazo, and condensation […]

39. Reactive Red 221 on November 13th, 2013 at 2:47 AM

    […] Methods : 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid and 2,4,6-Trichloro-1,3,5-triazine condensation, again with Nicotinic acid condensation, the […]

40. Reactive Red 241 on November 13th, 2013 at 2:49 AM

    […] Methods : 2-Aminonaphthalene-1,5-disulfonic acid diazo, and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid  coupling, and 2,4,6-Trichloro-1,3,5-triazine condensation, and then and registration, […]

41. Reactive Blue 256 on November 13th, 2013 at 4:05 AM

    […] : 5-Amino-2-(4-aminophenylamino)benzenesulfonic acid double nitriding, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid(2 Moore) coupling, and then and 2,4,6-Trichloro-1,3,5-triazine  (2 Moore) condensation and […]

42. Acid Brown 214 on November 14th, 2013 at 6:21 AM

    […] acid diazo, Coupled with resorcinol, and its products are again diazo the 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid and 4-Nitrobenzenamine […]

43. Direct Red 11 on November 15th, 2013 at 5:50 AM

    […] Methods :  p-Methylaniline diazo, and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid coupling, and 2,4,6-Trichloro-1,3,5-triazine condensation, and […]

44. Direct Green 26 on November 18th, 2013 at 3:50 AM

    […] Methods : 2,4,6-Trichloro-1,3,5-triazine in turn and (1) 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid, (2) 4-Nitrobenzenamine diazo, and 2-Hydroxybenzoic acid coupling, and then to restore the azo […]

45. Direct Green 59 on November 18th, 2013 at 4:35 AM

    […] Methods : 2,4,6-Trichloro-1,3,5-triazine successively with (1)4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid, (2) 4-Nitrobenzenamine diazo, and 2-Hydroxybenzoic acid coupling, and then to restore the azo […]

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