• Molecular formula: C₆H₅ClN₂O₂
• CAS No.: 121-87-9
• Mol. Wt: 172.57
• Appearance: Yellow crystalline solid
• Melting point: 105°-108°C
• Assay: Not less than 99.0% (By GC)
• Use: Dye & pigment

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• Molecular formula: C₆H₆N₂O₂
• CAS No.: 88-74-4
• Mol. Wt: 138.12
• Appearance: Orange crystalline solid
• Melting point: 70°-73°C
• Assay: Not less than 99.0% (By GC)
• Use: Dye & pigment

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• Molecular formula: C₆H₆N₂O₂
• CAS No.: 100-01-6
• Mol. Wt: 138.12
• Appearance: Yellow crystalline solid
• Melting point: 146°-149°C
• Assay: Not less than 99.0% (By GC)
• Use: Dye & pigment

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• Molecular formula: C₆H₅ClN₂O₂
• CAS No.: 89-63-4
• Mol. Wt: 172.57
• Appearance: Reddish crystalline solid
• Melting point: 117°-119°C
• Assay: Not less than 99.0% (By GC)
• Use: Dye & pigment

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