Interactive IRUG Spectrum


IRUG filename:
Data type:
IRUG material class:
Organic dyes and pigments (OD)
Sample type:
Reference material
Common name(s):
Pigment Yellow 175 (PY175), Benzimidazolone, Azo, CI11784
Trade name(s):
Hostaperm Yellow H6G
CAS name:
1,4-Benzenedicarboxylic acid, 2-[2-[1-[[(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)amino]carbonyl]-2-oxopropyl]diazenyl]-, 1,4-dimethyl ester
Sample source 1:
Hoechst Celanese
Source location 1:
222 W. Las Colinas Blvd., Suite 900N Irving, Texas 75039, US
Sample identifier 1:
Hostaperm Yellow H6G
Sample source 2:
Washington State Patrol, Washington State Crime Laboratory
Source location 2:
2203 Airport Way South, Seattle, WA, 98104, US
Sample identifier 2:
Benzimidazolone Yellow 6G (Pigment Yellow 175)
DRIFTS (diffuse reflectance infrared Fourier transform spectroscopy)
Literature Reference:
Suzuki, Edward W., and William P. Marshall. “Infrared Spectra of U.S. Automobile Original Topcoats (1974–1989): III. In Situ Identification of Some Organic Pigments Used in Yellow, Orange, Red, and Brown Nonmetallic and Brown Metallic Finishes—Benzimidazolones.” Journal of Forensic Sciences, vol. 42, no. 4, 1997, pp. 619–648.
Originating institution name:
Washington State Patrol, Crime Laboratory Division
Originating institution acronym:
Molecular formula:
C21 H19 N5 O7
CAS registry no:

Related Structure(s)

IRUG Structure Tracking #: 458
Common Name(s): Pigment Yellow 175 (PY175); Benzimidazolone; Azo; CI11784
CAS Name: 1,​4-​Benzenedicarboxylic acid, 2-​[2-​[1-​[[(2,​3-​dihydro-​2-​oxo-​1H-​benzimidazol-​5-​yl)​amino]​carbonyl]​-​2-​oxopropyl]​diazenyl]​-​, 1,​4-​dimethyl ester
CAS Registry No: 35636-63-6
IRUG Material Class: Organic dyes and pigments (OD)
Molecular Formula: C21 H19 N5 O7
MW: 453.40