103624

Sudan I

Dye content ≥95 %

• Synonym(s): 1-Phenylazo-2-naphthol, Solvent Yellow 14
• Linear Formula: C₆H₅N=NC₁₀H₆OH
• CAS Number: 842-07-9
• Molecular Weight: 248.28
• Colour Index Number: 12055
• EC Number: 212-668-2
• MDL number: MFCD00003911
• UNSPSC Code: 12171500
• PubChem Substance ID: 24846615
• NACRES: NA.47

Properties

• form: powder
• Quality Level: 200
• composition: Dye content, ≥95%
• color: orange to very dark orange
• pH: 10.2 (26 °C)
• mp: 131-133 °C (lit.)
• solubility: chloroform: 1 mg/mL, clear to very slightly hazy, orange
• density: 0.32 g/cm³ at 20 °C ((68 °F) - OECD Test Guideline 109)
• ε (extinction coefficient): ≥30000 at 223-233 nm in ethanol at 0.01 g/L
• εmax: ≥6000 at 299-319 nm in ethanol at 0.01 g/L (2nd)
• λmax: ≥11000 at 461-491 nm in ethanol at 0.01 g/L
• application(s): diagnostic assay manufacturing; hematology; histology
• storage temp.: room temp
• SMILES string: Oc1ccc2ccccc2c1N=Nc3ccccc3
• InChI: 1S/C16H12N2O/c19-15-11-10-12-6-4-5-9-14(12)16(15)18-17-13-7-2-1-3-8-13/h1-11,19H
• InChI key: MRQIXHXHHPWVIL-UHFFFAOYSA-N

Description

Application

Sudan I is a lysochrome, a diazo-conjugate dye, used as an industrial dye, added to products such as waxes, oils, petrol, solvents and polishes. Sudan I is a category 3 carcinogen previously, now banned, used to color certain foodstuffs.

Safety Information

• pictograms: GHS08,GHS07
• signalword: Warning
• hcodes: H317,H341,H351,H413
• pcodes: P202 - P261 - P273 - P280 - P302 + P352 - P308 + P313
• Hazard Classifications: Aquatic Chronic 4 - Carc. 2 - Muta. 2 - Skin Sens. 1
• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 2
• flash_point_f: >554.0 °F - Pensky-Martens closed cup
• flash_point_c: > 290 °C - Pensky-Martens closed cup