1.59267

Metanil yellow

pH indicator, Reag. Ph Eur

• Synonym(s): Metanil yellow, 3-(4-Anilinophenylazo)benzenesulfonic acid sodium salt
• Empirical Formula (Hill Notation): C₁₈H₁₄N₃NaO₃S
• CAS Number: 587-98-4
• Molecular Weight: 375.38
• MDL number: MFCD00007486
• UNSPSC Code: 12352107
• EC Index Number: 209-608-2
• NACRES: NA.21

Properties

• product name: Metanil yellow, Reag. Ph Eur
• Agency: reag. Ph. Eur.
• Quality Level: 200
• form: solid
• potency: >2000 mg/kg LD₅₀, oral (Rat); >2000 mg/kg LD₅₀, skin (Rat)
• color: brownish-yellow
• pH: 10 (20 °C, 10 g/L in H₂O)
• solubility: 25 g/L
• bulk density: 330 kg/m³
• storage temp.: no temp limit
• InChI: 1S/C18H15N3O3S.Na/c22-25(23,24)18-8-4-7-17(13-18)21-20-16-11-9-15(10-12-16)19-14-5-2-1-3-6-14;/h1-13,19H,(H,22,23,24);/q;+1/p-1
• InChI key: NYGZLYXAPMMJTE-UHFFFAOYSA-M

Description

Analysis Note

Description: brownish-yellow powder
Transition range: pH 1.2 - 2.3
Sensitivity test: conforms

Safety Information

• Pictograms: GHS05
• Signal Word: Danger
• Hazard Statements: H318 - H412
• Precautionary Statements: P273 - P280 - P305 + P351 + P338 - P501
• Hazard Classifications: Aquatic Chronic 3 - Eye Dam. 1
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 2