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Name |
1-Naphthol-5-sulfonic acid |
EINECS | 204-199-7 |
CAS No. | 117-59-9 | Density | 1.549 g/cm3 |
PSA | 82.98000 | LogP | 2.87290 |
Solubility | soluble in water | Melting Point |
110~112 °C |
Formula | C10H8O4S | Boiling Point | N/A |
Molecular Weight | 224.237 | Flash Point | N/A |
Transport Information | N/A | Appearance | off-white to reddish paste |
Safety | Risk Codes | R22; R36/37/38 | |
Molecular Structure | Hazard Symbols | Xn | |
Synonyms |
1-Hydroxy-5-naphthalenesulfonicacid;5-Hydroxy-1-naphthalenesulfonic acid;C.I.14820;L Acid;a-Naphthol-5-sulfonicacid; |
Article Data | 8 |
1-aminonaphthalene-5-sulfonic acid
A
5-amino-1-naphthol
B
1-hydroxynaphthalene-5-sulphonic acid
C
1,5-dihydroxynaphthalene
D
1-amino-naphthalene
Conditions | Yield |
---|---|
at 220 - 300℃; im Autoklaven; |
Conditions | Yield |
---|---|
With water; sodium hydrogensulfite at 100℃; |
5-chloronaphthalene-1-sulfonic acid
1-hydroxynaphthalene-5-sulphonic acid
Conditions | Yield |
---|---|
at 240 - 250℃; unter Druck; |
Conditions | Yield |
---|---|
With sodium hydroxide at 160 - 190℃; durch Verschmelzen; |
5-oxo-5,6,7,8-tetrahydro-naphthalene-1,7-disulfonic acid
1-hydroxynaphthalene-5-sulphonic acid
Conditions | Yield |
---|---|
With hydroxide |
Conditions | Yield |
---|---|
at 160 - 190℃; |
1-hydroxynaphthalene-5-sulphonic acid
Conditions | Yield |
---|---|
With sulfuric acid |
1-hydroxynaphthalene-5-sulphonic acid
Conditions | Yield |
---|---|
With sodium hydroxide; water at 260℃; |
1-hydroxynaphthalene-5-sulphonic acid
Conditions | Yield |
---|---|
With sodium hydroxide at 240 - 250℃; |
sulfuric acid
5-sulfo-naphthalene-1-diazonium-betaine
1-hydroxynaphthalene-5-sulphonic acid
The 1-Naphthol-5-sulfonic acid, with the CAS registry number 117-59-9, is also known as 1-Hydroxy-5-naphthalenesulfonicacid. It belongs to the product category of Intermediates of Dyes and Pigments. Its EINECS number is 204-199-7. This chemical's molecular formula is C10H8O4S and molecular weight is 224.23. What's more, its systematic name is 5-Hydroxy-1-naphthalenesulfonic acid. This chemical should be sealed and stored in a cool, ventilated and dry place. Moreover, it should be protected from heat and moisture. It is used to prepare dyes and organic pigments, and it is also used to prepare sensitiser 215 of photoresist. The product is the intermediate of the direct dyes and organic pigments.
Physical properties of 1-Naphthol-5-sulfonic acid are: (1)ACD/LogP: -0.007; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -3.50; (4)ACD/LogD (pH 7.4): -3.52; (5)ACD/BCF (pH 5.5): 1.00; (6)ACD/BCF (pH 7.4): 1.00; (7)ACD/KOC (pH 5.5): 1.00; (8)ACD/KOC (pH 7.4): 1.00; (9)#H bond acceptors: 4; (10)#H bond donors: 2; (11)#Freely Rotating Bonds: 2; (12)Polar Surface Area: 82.98 Å2; (13)Index of Refraction: 1.704; (14)Molar Refractivity: 56.188 cm3; (15)Molar Volume: 144.756 cm3; (16)Polarizability: 22.275×10-24cm3; (17)Surface Tension: 71.13 dyne/cm; (18)Density: 1.549 g/cm3.
Preparation: it is a method of addition. Lauren acid (1-amino-5-naphthalene acid) as raw material has an addition reaction with sodium hydrogensulfite aqueous solution in the presence of hydrochloric acid, then the product is got by hydrolysis, acidification and pressure filtration.
You can still convert the following datas into molecular structure:
(1)SMILES: O=S(=O)(O)c1cccc2c1cccc2O
(2)Std. InChI: InChI=1S/C10H8O4S/c11-9-5-1-4-8-7(9)3-2-6-10(8)15(12,13)14/h1-6,11H,(H,12,13,14)
(3)Std. InChIKey: YLKCHWCYYNKADS-UHFFFAOYSA-N