Solvent Yellow 28
Solvent Yellow 28 Basic information
- Product Name:
- Solvent Yellow 28
- Synonyms:
-
- 2,4-Bis(phenylazo)-6-methylphenol
- Oil Yellow GS
- Einecs 227-436-6
- Solvent Yellow 28
- Transparency Yellow S
- C.I.20010
- C.I.Solvent Yellow 28
- (6E)-2-methyl-4-phenyldiazenyl-6-(phenylhydrazinylidene)cyclohexa-2,4-dien-1-one
- CAS:
- 5844-01-9
- MF:
- C19H16N4O
- MW:
- 316.36
- EINECS:
- 227-436-6
- Product Categories:
-
- Solvent Dyestuff
- Mol File:
- 5844-01-9.mol
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Solvent Yellow 28 Usage And Synthesis
Preparation
aniline (2 Moore) diazotization and o-Cresol coupling.
Properties and Applications
yellow to orange (mineral oil). Soluble in ethanol and toluene, hardly soluble in water. In concentrated sulfuric acid to red light brown, dilution after dark brown solution, and then have yellow brown precipitation; In hot concentrated hydrochloric acid for yellow brown solution; At 2% hot sodium hydroxide solution for red light brown. Used for alcohol, esters, hydrocarbon solvent, oil and paraffin color.
| Standard | Light Fastness | Heat-resistant(℃) | water | Sodium Carbonate(5%) | Hydrochloric acid(5%) | |
| Melting point | Stable | |||||
| ISO | Well | 117 |
100≥180
Sublimation |
Well | Well | Well |
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Solvent Yellow 28(5844-01-9)Related Product Information
- Solvent Yellow 21
- SOLVENT YELLOW 30
- Solvent Yellow 27
- O-AMINOAZOTOLUENE
- 2,4-Dihydro-5-methyl-4-[(4-methyl-3-nitrophenyl)azo]-2-phenyl-3H-pyrazol-3-one
- 2,2'-[cyclohexylidenebis[(2-methyl-4,1-phenylene)azo]]bis[4-tert-butylphenol]
- SOLVENT YELLOW 29
- Solvent Yellow 25:1
- 2-Hydroxy-5-[(2-methoxyphenyl)azo]benzoic acid