Methyl Orange

• Catalog No.: 32624
• CAS Number: 547-58-0
• M. F.: C14H14N3NaO3S
• M. W.: 327.33403

SYNONYMS

• Title: 甲基橙
• IUPAC name: sodium 4-{2-[4-(dimethylamino)phenyl]diazen-1-yl}benzene-1-sulfonate
• IUPAC Traditional name: sodium methyl orange
• Synonyms: 酸性橙 52; 4-[4-(二甲氨基)苯基偶氮基]苯磺酸 钠盐; 4-[4-(Dimethylamino)phenylazo]benzenesulfonic acid sodium salt; 半日花素 B; Orange III; Acid Orange 52; 橙黄 III; Helianthin

DATABASE IDS

• EC Number: 208-925-3
• Beilstein Number: 4732884
• PubChem SID: 24859575
• MDL Number: MFCD00007502
• Color Index Number: 13025
• CAS Number: 547-58-0

PROPERTIES

• Empirical Formula (Hill Notation): C14H14N3NaO3S
• Grade: Reag. Ph. Eur.
• Grade: indicator
• pH Range: 3.0 - 4.4, pink to yellow
• Suitability: complies for sensitivity
• Visual Transition Interval: 3.0 - 4.4 (corresponds)
• GHS Signal Word: Danger
• GHS Hazard statements: H301
• European Hazard Symbols: Toxic (T)
• Personal Protective Equipment: Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges
• GHS Precautionary statements: P301 + P310
• RID/ADR: UN 3143 6.1/PG 3
• Risk Statements: 25
• RTECS: DB6327000
• Safety Statements: 45
• Hazard Class: 6.1
• UN Number: 3143
• Packing Group: 3
• German water hazard class: 3

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