229296

Indigo

synthetic, Dye content 95 %

• Synonym(s): Indigo blue, Indigotin
• Empirical Formula (Hill Notation): C₁₆H₁₀N₂O₂
• CAS Number: 482-89-3
• Molecular Weight: 262.26
• Colour Index Number: 73000
• Beilstein: 88275
• EC Number: 207-586-9
• MDL number: MFCD00005722
• UNSPSC Code: 12171500
• PubChem Substance ID: 24853742
• NACRES: NA.47

Properties

• form: powder
• composition: Dye content, 95%
• technique(s): titration: suitable
• mp: >300 °C (lit.)
• density: 1.35 g/cm³ at 20 °C
• λmax: 602 nm
• ε (extinction coefficient): ≥8000 at 599-605 nm in chloroform
• application(s): diagnostic assay manufacturing; hematology; histology
• storage temp.: room temp
• SMILES string: O=C1C(\Nc2ccccc12)=C3/Nc4ccccc4C3=O
• InChI: 1S/C16H10N2O2/c19-15-9-5-1-3-7-11(9)17-13(15)14-16(20)10-6-2-4-8-12(10)18-14/h1-8,17-18H/b14-13+
• InChI key: COHYTHOBJLSHDF-BUHFOSPRSA-N
• Gene Information: human ... EPHX2(2053) ; mouse ... Ephx2(13850)

Description

Application

Indigo has been used as a dye to measure food consumption in Drosophila. It has also been used to investigate the ability of fungal strains in the degradation and decolorization of indigo dye.

Biochem/physiol Actions

Indigo is a rich blue color dye. It can be extracted from plants of genus Indigofera and can also be produced synthetically. Indigo is a vat textile dye, widely used on cellulosic fibers like cotton. Additionally, it is also used to inhibit corrosion of mild steel in aerated sulfuric acid.

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Statements: H315,H319,H335
• Precautionary Statements: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves