Interactive IRUG Spectrum


IRUG filename:
Data type:
IRUG material class:
Organic dyes and pigments (OD)
Sample type:
Reference material
Common name(s):
Pigment Yellow 129 (PY129), Metal Complex, Polycyclic, CI48042
Trade name(s):
Irgazin Yellow 5GLT
CAS name:
Copper, [1-[[[2-(hydroxy-κO)phenyl]imino-κN]methyl]-2-naphthalenolato(2-)-κO]-
Sample source 1:
Ciba Specialty Chemicals Corp.
Sample identifier 1:
Irgazin Yellow 5GLT
Sample source 2:
Washington State Patrol, Washington State Crime Laboratory
Source location 2:
2203 Airport Way South, Seattle, WA, 98104, US
Sample identifier 2:
Copper Azo Methine Yellow (Pigment Yellow 129)
Greenish yellow
DRIFTS (diffuse reflectance infrared Fourier transform spectroscopy)
Literature Reference:
Suzuki, Edward M. “Infrared Spectra of U.S. Automobile Original Topcoats (1974–1989): VI. Identification and Analysis of Yellow Organic Automotive Paint Pigments—Isoindolinone Yellow 3R, Isoindoline Yellow, Anthrapyrimidine Yellow, and Miscellaneous Yellows.” Journal of Forensic Sciences, vol. 44, no. 6, 1999, pp. 1151–1175
Originating institution name:
Washington State Patrol, Crime Laboratory Division
Originating institution acronym:
Molecular formula:
C17 H11 Cu N O2
CAS registry no:

Related Structure(s)

IRUG Structure Tracking #: 119
Common Name(s): Pigment Yellow 129 (PY129); Metal Complex; CI48042
Chemical Name(s): 2-Naphthalenol, 1-[[(2-hydroxyphenyl)imino]methyl]-, copper complex
CAS Name: Copper, [1-​[[[2-​(hydroxy-​κO)​phenyl]​imino-​κN]​methyl]​-​2-​naphthalenolato(2-​)​-​κO]​-
CAS Registry No: 15680-42-9
IRUG Material Class: Organic dyes and pigments (OD)
Molecular Formula: C17 H11 Cu N O2
MW: 324.82