Section: 9 | Organic dyes and pigments (OD) | Page: 187 |
IRUG filename: IOD00187 | Data type: Infrared | IRUG material class: Organic dyes and pigments (OD) |
Sample type: Reference material | Common name(s): Curcumin, Natural Yellow 3, CI75300 | CAS name: 1,6-Heptadiene-3,5-dione, 1,7-bis(4-hydroxy-3-methoxyphenyl)-, (1E,6E)- |
Sample source 1: Helmut Schweppe Collection of Early Synthetic Dyes | Source location 1: BASF, Ludwigshafen, Germany | Sample identifier 1: Curcumin |
Sample source 2: Getty Conservation Institute | Source location 2: The Getty Center, 1200 Getty Center Drive, Los Angeles, CA, 90049 | Sample identifier 2: Curcumin |
Color: Reddish yellow | Age: 1986, acquired | MW (relative): 368.38, calculated |
Application: DRIFTS (diffuse reflectance infrared Fourier transform spectroscopy) | Mode: Refl | Originating institution name: Getty Conservation Institute |
Originating institution acronym: GCI | Molecular formula: C21 H20 O6 | CAS registry no: 458-37-7 |
IRUG Structure Tracking #: 898 Common Name(s): Curcumin (keto form); Natural Yellow 3; CI75300 CAS Name: 1,6-Heptadiene-3,5-dione, 1,7-bis(4-hydroxy-3-methoxyphenyl)-, (1E,6E)- IRUG Material Class: Organic dyes and pigments (OD) Molecular Formula: C21 H20 O6 MW: 368.38 |