Name: 8-Hydroxy-2-naphthylamine-3,6-disulfonic acid
SKU: 90-40-4

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Basic Information

Molecular Structure:
CAS No.:	90-40-4
Name:	8-Hydroxy-2-naphthylamine-3,6-disulfonic acid

Formula:	C₁₀H₉NO₇S₂
Molecular Weight:	319.316
Synonyms:	1-Naphthol-3,6-disulfonicacid, 7-amino- (6CI);1-Hydroxy-3,6-disulfo-7-aminonaphthalene;2-Amino-8-hydroxynaphthalene-3,6-disulfonic acid;2-Amino-8-naphthol-3,6-disulfonic acid;2R acid;3-Amino-5-hydroxy-2,7-naphthalenedisulfonic acid;6-Amino-4-naphthol-2,7-disulfonic acid;7-Amino-1-hydroxy-3,6-naphthalenedisulfonic acid;7-Amino-1-naphthol-3,6-disulfonic acid;Gamma disulfo acid;NSC 10435;NSC7560;RR acid;
EINECS:	201-989-3
Density:	1.88 g/cm³
Boiling Point:	603.18℃[at 101 325 Pa]
Solubility:	35.36g/L at 25℃
PSA:	171.75000
LogP:	3.36380

Synthetic route

: 118-03-6
7-aminonaphthalene-1,3,6-trisulfonic acid

: 90-40-4
2-amino-8-hydroxy-naphthalene-3,6-disulphonic acid

Conditions

Conditions	Yield
With alkali at 220 - 260℃;

: 118-03-6
7-aminonaphthalene-1,3,6-trisulfonic acid

alkali: alkali

: 90-40-4
2-amino-8-hydroxy-naphthalene-3,6-disulphonic acid

Conditions

Conditions	Yield
at 220 - 260℃;

tetrasodium-salt of/the/ 2-amino-naphthalene-1.3.6.8-tetrasulfonic acid: tetrasodium-salt of/the/ 2-amino-naphthalene-1.3.6.8-tetrasulfonic acid

: 90-40-4
2-amino-8-hydroxy-naphthalene-3,6-disulphonic acid

Conditions

Conditions	Yield
With sodium hydroxide at 200℃;

: 75-44-5
phosgene

: 90-40-4
2-amino-8-hydroxy-naphthalene-3,6-disulphonic acid

: 5,5'-dihydroxy-3,3'-ureylene-bis-naphthalene-2,7-disulfonic acid ; sodium salt

Conditions

Conditions	Yield
With sodium carbonate

: 90-40-4
2-amino-8-hydroxy-naphthalene-3,6-disulphonic acid

: 175697-96-8
6-nitro-1-naphthoic acid chloride

: 5,5'-dihydroxy-3,3'-(5,5'-ureylene-bis-[1]naphthoylamino)-bis-naphthalene-2,7-disulfonic acid

Conditions

Conditions	Yield
Reduktion und Behandlung des Reaktionsprodukts mit Phosgen bei Gegenwart von Natriumacetat in waessr. Loesung;

: 90-40-4
2-amino-8-hydroxy-naphthalene-3,6-disulphonic acid

: 100-05-0
4-nitrobenzenediazonium chloride

: 3-amino-4-(4-amino-phenylazo)-5-hydroxy-naphthalene-2,7-disulfonic acid

Conditions

Conditions	Yield
und Reduktion mit Natriumsulfid;

: 90-40-4
2-amino-8-hydroxy-naphthalene-3,6-disulphonic acid

: 100-05-0
4-nitrobenzenediazonium chloride

: 3-amino-5-hydroxy-4-(4-nitro-phenylazo)-naphthalene-2,7-disulfonic acid

Conditions

Conditions	Yield
With acetic acid

: 90-40-4
2-amino-8-hydroxy-naphthalene-3,6-disulphonic acid

: 100-34-5
benzene diazonium chloride

: 6-amino-4-hydroxy-3-phenylazo-naphthalene-2,7-disulfonic acid

Conditions

Conditions	Yield
With alkali

: 90-40-4
2-amino-8-hydroxy-naphthalene-3,6-disulphonic acid

: 575-38-2
1,7-Dihydroxynaphthalene

Conditions

Conditions	Yield
With sulfuric acid at 200℃;
With hydrogenchloride at 200℃;
With phosphoric acid at 200℃;
With formic acid at 200℃;

: 90-40-4
2-amino-8-hydroxy-naphthalene-3,6-disulphonic acid

: 858020-15-2
6-amino-2,3,5,7-tetrabromo-[1,4]naphthoquinone

Conditions

Conditions	Yield
With bromine; acetic acid

Raw Materials

118-03-6

Downstream Products

575-38-2

Total:33 Page 1 of 1 1

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Specification

The 2,7-Naphthalenedisulfonicacid, 3-amino-5-hydroxy-, with CAS registry number 90-40-4, belongs to the following product category: Intermediates of Dyes and Pigments. It has the systematic name of 3-amino-5-hydroxynaphthalene-2,7-disulfonic acid. And the chemical formula of this chemical is C₁₀H₉NO₇S₂. The main use of this chemical is for intermediates of dyes and pigments.

Physical properties of 2,7-Naphthalenedisulfonicacid, 3-amino-5-hydroxy-: (1)ACD/LogP: -2.31; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): -6.81; (4)ACD/LogD (pH 7.4): -6.84; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 1; (8)ACD/KOC (pH 7.4): 1; (9)#H bond acceptors: 8; (10)#H bond donors: 5; (11)#Freely Rotating Bonds: 4; (12)Polar Surface Area: 115.97 Å²; (13)Index of Refraction: 1.764; (14)Molar Refractivity: 70.15 cm³; (15)Molar Volume: 169.8 cm³; (16)Polarizability: 27.81×10^-24cm³; (17)Surface Tension: 104.7 dyne/cm.

You can still convert the following datas into molecular structure:
(1)SMILES: O=S(=O)(O)c1c(cc2c(c1)cc(cc2O)S(=O)(=O)O)N
(2)InChI: InChI=1/C10H9NO7S2/c11-8-4-7-5(2-10(8)20(16,17)18)1-6(3-9(7)12)19(13,14)15/h1-4,12H,11H2,(H,13,14,15)(H,16,17,18)
(3)InChIKey: VNWVMZDJPMCAKD-UHFFFAOYAH
(4)Std. InChI: InChI=1S/C10H9NO7S2/c11-8-4-7-5(2-10(8)20(16,17)18)1-6(3-9(7)12)19(13,14)15/h1-4,12H,11H2,(H,13,14,15)(H,16,17,18)
(5)Std. InChIKey: VNWVMZDJPMCAKD-UHFFFAOYSA-N

90-40-4

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Specification