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Interactive IRUG Spectrum
| Section: 9 | Organic dyes and pigments (OD) | Page: 739 |
Copyright © 1993-2025 Infrared and Raman Users Group (IRUG)
Details
IRUG filename: IOD00739 | Data type: Infrared | IRUG material class: Organic dyes and pigments (OD) |
Sample type: Reference material | Common name(s): Direct Black 38, Trisazo, CI30235 | Trade name(s): Chlorazol Black EN 240 |
CAS name: 2,7-Naphthalenedisulfonic acid, 4-amino-3-[2-[4'-[2-(2,4-diaminophenyl)diazenyl][1,1'-biphenyl]-4-yl]diazenyl]-5-hydroxy-6-(2-phenyldiazenyl)-, sodium salt (1:2) | Sample source 1: ICI | Sample identifier 1: Chlorazol Black EN 240 |
Sample source 2: Technological Collection of the Institute of the Science & Technology in Art (ISTA Collection) | Source location 2: Academy of Fine Arts, Schillerplatz 3, A-1010, Vienna, AT | Sample identifier 2: Inv. No. 515, Chlorazol Black EN 240 |
Color: Black | Age: Oct 25, 1956, dated | Application: MFTIR (Fourier transform infrared microspectroscopy) |
Mode: Tran | Originating institution name: Academy of Fine Arts, Vienna | Originating institution acronym: AFAV |
Molecular formula: C34 H25 N9 O7 S2 * 2 Na | CAS registry no: 1937-37-7 | Other analytical methods: XRF (x-ray fluorescence) |
Related Structure(s)
IRUG Structure Tracking #: 1240 Common Name(s): Direct Black 38; Trisazo; CI30235 CAS Name: 2,7-Naphthalenedisulfonic acid, 4-amino-3-[2-[4'-[2-(2,4-diaminophenyl)diazenyl][1,1'-biphenyl]-4-yl]diazenyl]-5-hydroxy-6-(2-phenyldiazenyl)-, sodium salt (1:2) CAS Registry No: 1937-37-7 IRUG Material Class: Organic dyes and pigments (OD) Molecular Formula: C34 H25 N9 O7 S2 * 2 Na MW: 781.73 |