Interactive IRUG Spectrum


IRUG filename:
Data type:
IRUG material class:
Organic dyes and pigments (OD)
Sample type:
Reference material
Common name(s):
Pigment Orange 36 (PO36), Benzimidazolone, Azo, CI11780
Trade name(s):
Sunfast Orange 36
CAS name:
Butanamide, 2-[2-(4-chloro-2-nitrophenyl)diazenyl]-N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-oxo-
Sample source 1:
Sun Chemical Corp.
Source location 1:
Cincinnati, OH, US
Sample identifier 1:
Sunfast Orange 36
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 Orange (Pigment Orange 36)
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:
C17 H13 Cl N6 O5
CAS registry no:

Related Structure(s)

IRUG Structure Tracking #: 894
Common Name(s): Pigment Orange 36 (PO36); Benzimidazolone; Azo; CI11780
CAS Name: Butanamide, 2-​[2-​(4-​chloro-​2-​nitrophenyl)​diazenyl]​-​N-​(2,​3-​dihydro-​2-​oxo-​1H-​benzimidazol-​5-​yl)​-​3-​oxo-
CAS Registry No: 12236-62-3
IRUG Material Class: Organic dyes and pigments (OD)
Molecular Formula: C17 H13 Cl N6 O5
MW: 416.78