sodium 4-{(E)-[4-(phenylamino)phenyl]diazenyl}benzenesulfonate
Orange IV
CAS: 554-73-4
Molecular Formula: C18H14N3NaO3S
sodium 4-{(E)-[4-(phenylamino)phenyl]diazenyl}benzenesulfonate - Names and Identifiers
| Name | Orange IV |
| Synonyms | OrangeⅣ Orange IV C.I. 13080 c.i.acidorange5, OrangeIvC.I.13080 C.I. Acid Orange 5 TROPAEOLIN OO INDICATOR c.i.acidorange5,monosodiumsalt C.I. Acid Orange 5, monosodium salt (8CI) sodium 4-[[4-(anilino)phenyl]azo]benzenesulphonate sodium 4-{[4-(phenylamino)phenyl]diazenyl}benzenesulfonate sodium 4-{(E)-[4-(phenylamino)phenyl]diazenyl}benzenesulfonate 4-[[4-(phenylamino)phenyl]azo]-benzenesulfonicacimonosodiumsalt Benzenesulfonicacid,4-[[4-(phenylamino)phenyl]azo]-,monosodiumsalt |
| CAS | 554-73-4 |
| EINECS | 209-071-4 |
| InChI | InChI=1/C18H15N3O3S.Na/c22-25(23,24)18-12-10-17(11-13-18)21-20-16-8-6-15(7-9-16)19-14-4-2-1-3-5-14;/h1-13,19H,(H,22,23,24);/q;+1/p-1 |
sodium 4-{(E)-[4-(phenylamino)phenyl]diazenyl}benzenesulfonate - Physico-chemical Properties
| Molecular Formula | C18H14N3NaO3S |
| Molar Mass | 375.38 |
| Melting Point | >300°C |
| Solubility | Solubility soluble in water, ethanol |
| Appearance | Orange-yellow scales or yellow powder |
| Color | S. No.: 179 |
| Maximum wavelength(λmax) | ['527nm, 443nm'] |
| Merck | 14,9776 |
| pKa | 2.0(at 25℃) |
| Storage Condition | Inert atmosphere,Room Temperature |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| Sensitive | Easily absorbing moisture |
| MDL | MFCD00038130 |
sodium 4-{(E)-[4-(phenylamino)phenyl]diazenyl}benzenesulfonate - Risk and Safety
| Risk Codes | R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R36/37/38 - Irritating to eyes, respiratory system and skin. R41 - Risk of serious damage to eyes R37/38 - Irritating to respiratory system and skin. R22 - Harmful if swallowed |
| Safety Description | S36/37 - Wear suitable protective clothing and gloves. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S36 - Wear suitable protective clothing. S24/25 - Avoid contact with skin and eyes. |
| HS Code | 29270000 |
| Hazard Class | IRRITANT |
sodium 4-{(E)-[4-(phenylamino)phenyl]diazenyl}benzenesulfonate - Reference Information
| Color index | 13080 |
| pH range of acid-base indicator discoloration | 1.3(red)-3.2(yellow) |
| Main application | Sensors, lithographic plates, optical recording media, photoreceptor, inks, |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| purpose | mainly used for wool, silk and nylon fabric dyeing and printing, can also be used for leather, coloring of paper acid-base indicator used as acid-base indicator, color range pH 1.3 (red) ~ 3.2 (yellow). Non-aqueous titration of indicators, analysis of calcium, magnesium indicators. |
Last Update：2024-04-10 22:29:15
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View History
sodium 4-{(E)-[4-(phenylamino)phenyl]diazenyl}benzenesulfonate
Ethanone, 1-(3,4-dihydro-2-methyl-1,8-naphthyridin-1(2H)-yl)-
106176-12-9
1164478-00-5
1-[(2H-1,3-benzodioxol-5-yl)methyl]-3-methylurea
688046-61-9
1,3-Dichloro-4,4,5,5-tetramethyl-2-imidazolidinone
4-hydroxy-5-{[(E)-(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]amino}naphthalene-2,7-disulfonic acid
4-piperidinamine, 1-(2,3-dihydro-1H-inden-2-yl)-
663885-43-6
Ethanone, 1-(3,4-dihydro-2-methyl-1,8-naphthyridin-1(2H)-yl)-
106176-12-9
1164478-00-5
1-[(2H-1,3-benzodioxol-5-yl)methyl]-3-methylurea
688046-61-9
1,3-Dichloro-4,4,5,5-tetramethyl-2-imidazolidinone
4-hydroxy-5-{[(E)-(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]amino}naphthalene-2,7-disulfonic acid
4-piperidinamine, 1-(2,3-dihydro-1H-inden-2-yl)-
663885-43-6