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Name	Pigment Yellow 181	EINECS	277-873-1
CAS No.	74441-05-7	Density	1.5 g/cm³
PSA	203.22000	LogP	4.12720
Solubility	106.1μg/L at 23℃	Melting Point	N/A
Formula	C25H21 N7 O5	Boiling Point	628.3 °C at 760 mmHg
Molecular Weight	499.4781	Flash Point	333.8 °C
Transport Information	N/A	Appearance	N/A
Safety		Risk Codes	N/A
Molecular Structure		Hazard Symbols	N/A
Synonyms	Benzamide,N-[4-(aminocarbonyl)phenyl]-4-[[1-[[(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)amino]carbonyl]-2-oxopropyl]azo]-(9CI); C.I. 11777; C.I. Pigment Yellow 181; PV Fast Yellow H 3R; PY 181;Pigment Yellow 181

Pigment Yellow 181 Chemical Properties

Molecular Structure:

Molecular Formula: C₂₅H₂₁N₇O₅
Molecular Weight: 499.4781
IUPAC Name: 4-[[4-[[1,3-Dioxo-1-[(2-oxo-1,3-dihydrobenzimidazol-5-yl)amino]butan-2-yl]diazenyl]benzoyl]amino]benzamide
Synonyms of Pigment Yellow 181 (CAS NO.74441-05-7): C.I. 11777 ; N-(4-(Aminocarbonyl)phenyl)-4-((1-(((2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)amino)carbonyl)-2-oxopropyl)azo)benzamide ; N-(4-Carbamoylphenyl)-4-[2-oxo-1-[(2-oxo-1,3-dihydrobenzoimidazol-5-yl)carbamoyl]propyl]diazenyl-benzamide
CAS NO: 74441-05-7
Product Categories: TSCA Flag P [A commenced PMN (Premanufacture Notice) substance]
Index of Refraction: 1.728
Molar Refractivity: 131.88 cm³
Molar Volume: 330.9 cm³
Surface Tension: 67 dyne/cm
Density: 1.5 g/cm³
Flash Point: 333.8 °C
Enthalpy of Vaporization: 92.96 kJ/mol
Boiling Point: 628.3 °C at 760 mmHg
Vapour Pressure of Pigment Yellow 181 (CAS NO.74441-05-7): 1.07E-15 mmHg at 25°C

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