Natural color：

Dilute color：

Pigment Yellow 181, product name is pigment Yellow 181, alias is C.I.Pigment Yellow 181, CAS RN is 74441-05-7, molecular formula is C₂₅H₂₁N₇O₅, the product is suitable solvent-type intaglio printing ink and relief printing in for package.

Structural formula:

                     

Basic information

Product name:Pigment Yellow 181

Alias: 11777; C.I.Pigment Yellow 181; P.Y.181; Benzimidazolone Yellow H3R; N-[4-(aminocarbonyl)phenyl]-4-[[1-[[(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)amino]carbonyl]-2-osopropyl]azo]-Benzamide; N-(4-carbamoylphenyl)-4-[(E)-{1,3-dioxo-1-[(2-oxo-2,3-dihydro-1H-benzimidazol-5-yl)amino]butan-2-yl}diazenyl]benzamide; 4-[[4-[2-oxo-1-[(2-oxo-1,3-dihydrobenzimidazol-5-yl)carbamoyl]propyl]azobenzoyl]amino]benzamide

CAS RN: 74441-05-7

Molecular formula: C₂₅H₂₁N₇O₅

Molecular weight: 499.4781

Physical property data

Density1.5g/cm3

Hue or color tone: red light yellow

Density/(g/cm3): 1.42

Average particle size/μm: 560

Specific surface area/(m2/g): 27

Main uses

Metric hue angle 66.5° (1/3S.D.,HDPE). It can be used in polyolefin tinting, with excellent heat stability and light fastness, heat resistance can reach 300℃, light fastness is 7-8 grade. It can also be used in plastic tinting, especially suitable for processing resin, such as PS, ABS, PE, at high temperature

System No.

CAS RN: 74441-05-7

EINECS No.: 277-873-1