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| CAS No.: | 85-47-2 |
|---|---|
| Name: | 1-Naphthalenesulfonic acid |
| Molecular Structure: | |
|
|
|
| Formula: | C10H8 O3 S |
| Molecular Weight: | 208.238 |
| Synonyms: | 1-Sulfonaphthalene;HT 907; a-Naphthalenesulfonic acid |
| EINECS: | 201-610-1 |
| Density: | 1.423 g/cm3 |
| Melting Point: | 77-79 °C(lit.) |
| Boiling Point: | 392oC |
| Flash Point: | 380.2oC |
| Solubility: | freely soluble in water |
| Appearance: | grey fine crystalline powder |
| Hazard Symbols: |
|
| Risk Codes: | R34 |
| Safety: | 26-36/37/39-45-28A |
| Transport Information: | UN 2583 |
| PSA: | 62.75000 |
| LogP: | 3.16730 |
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| Conditions | Yield |
|---|---|
| With sulfur trioxide at 60℃; Temperature; Solvent; | 95.7% |
| With dipyridinium dichromate; sodium hydrogensulfite In neat (no solvent) at 100℃; under 1500.15 Torr; for 0.0916667h; Reagent/catalyst; Microwave irradiation; | 75% |
| With sulfuric acid; silica gel In 1,2-dichloro-ethane at 80℃; for 0.5h; | 60% |
| Conditions | Yield |
|---|---|
| With sulfuric acid at 160 - 170℃; for 1.5h; | A 88.3% B 8.51% |
| With sulfuric acid at 120℃; Product distribution; Rate constant; Thermodynamic data; activation energy; microwave or irradiation; regioselectivity; | |
| With sulfuric acid at 120℃; for 0.5h; Product distribution; microwave activation; various power, temperature, reaction time, H2SO4 concentration; |
| Conditions | Yield |
|---|---|
| Stage #1: 1-Naphthalenesulfonyl chloride With N-ethyl-N,N-diisopropylamine; Wang resin In dichloromethane at 22℃; Stage #2: With trifluoroacetic acid In dichloromethane for 1h; Further stages.; | 85% |
| With sodium hydrogencarbonate In water at 80 - 90℃; | 0.25 g |
| With water In acetone at 30℃; Kinetics; Mechanism; Thermodynamic data; other temperatures; ΔH(excit.), ΔS(excit.); various concentrations of the reagent and substrate; | |
| Multi-step reaction with 2 steps 1: alcohol; zinc 2: water View Scheme |
| Conditions | Yield |
|---|---|
| With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; caesium carbonate; Aminoiminomethanesulfinic acid In dimethyl sulfoxide at 100℃; for 14h; Green chemistry; | 71% |
| Conditions | Yield |
|---|---|
| With chlorosulphuric acid; benzene |
| Conditions | Yield |
|---|---|
| With tetrachloromethane; chlorosulfonic acid at -5℃; |
- 607-33-0
naphthalene-1-sulphinic acid
A
- 85-47-2
1-naphthalenesulfonic acid
B
- 49833-22-9
S-(naphthalen-1-yl) naphthalene-1-sulfonothioate
| Conditions | Yield |
|---|---|
| With water |
- 876483-30-6
naphthalene-1-sulfonic acid menthyl ester
A
- 85-47-2
1-naphthalenesulfonic acid
B
- 500-00-5
3-p-menthene
| Conditions | Yield |
|---|---|
| under 4 Torr; bei der Destillation.Thermolysis; naphthalene-1-sulfonic acid l-menthyl ester; |
- 91-20-3
naphthalene
A
- 120-18-3
naphthalene-2-sulfonate
B
- 85-47-2
1-naphthalenesulfonic acid
C
- 5724-16-3
naphthalene-1,7-disulphonic acid
D
- 525-37-1
naphthalene-1,6-disulfonic acid
E
- 81-04-9
naphthalene-1,5-disulfonate
| Conditions | Yield |
|---|---|
| With sulfur trioxide; water Product distribution; multistep reaction; various reaction conditions; |
- 91-20-3
naphthalene
A
- 120-18-3
naphthalene-2-sulfonate
B
- 85-47-2
1-naphthalenesulfonic acid
C
- 525-37-1
naphthalene-1,6-disulfonic acid
D
- 81-04-9
naphthalene-1,5-disulfonate
| Conditions | Yield |
|---|---|
| With sulfur trioxide; water 1.) CH2Cl2, 22 deg C, 60 min, 2.) 70 - 80 deg C, 30 min; Multistep reaction. Further byproducts given. Title compound not separated from byproducts; |
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Toxicity Data With Reference
Product Name: 1-Naphthalenesulfonic acid (CAS NO.85-47-2)
Molecular Formula: C10H8O3S
Molecular Weight: 208.23g/mol
Mol File: 85-47-2.mol
Einecs: 201-610-1
Melting Point: 77-79 °C(lit.)
Density: 1.423 g/cm3
Water Solubility: freely soluble
Product Categories: Intermediates of Dyes and Pigments ; Organic Building Blocks ; Sulfonic/Sulfinic Acids ; Sulfur Compounds
Synonyms of 1-Naphthalenesulfonic acid (CAS NO.85-47-2): 1-Naphthyl sulfonic acid ; Sulfonated naphthalene ; Naphthalene-1-sulfonic acid ; Alpha napthalene sulphonate ; Alpha-naphthalenesulfonic acid ; 1-Naphthalenesulfonic acid ; 1-Naphthalenesulfonic acid, dihydrate ; Naphthalene-1-sulfonic acid dihydrate .
Safety Profile
Safety Information of 1-Naphthalenesulfonic acid (CAS NO.85-47-2):
Hazard Codes: C.gif){kind=small}
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Risk Statements: 34-11
11: Highly Flammable
34: Causes burns
Safety Statements: 26-36/37/39-45-28-16
16: Keep away from sources of ignition - No smoking
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
28: After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer)
36: Wear suitable protective clothing
37: Wear suitable gloves
39: Wear eye/face protection
45: In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)