Pigment Yellow 181

Basic Information

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CAS Number

74441-05-7

Molecular Formula

C25H21N7O5

Molecular Weight

499.5 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Basic Chemical Raw Materials Organic Chemicals Ketones

Basic Chemical Raw Materials Organic Chemicals Amines

Basic Chemical Raw Materials Organic Chemicals Heterocyclic Compounds

Pharmaceutical Chemicals Pharmaceutical Intermediates Heterocyclic Intermediates

Fine Chemicals Dyes and Pigments Organic Dyes

Fine Chemicals Surfactants Anionic Surfactants

Laboratory Chemicals Research Chemicals Biochemical Reagents

Basic Physical Properties

Boiling Point

628.3°C at 760 mmHg

SMILES

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CC(=O)C(C(=O)NC1=CC2=C(C=C1)NC(=O)N2)N=NC3=CC=C(C=C3)C(=O)NC4=CC=C(C=C4)C(=O)N

InChI

InChI=1S/C25H21N7O5/c1-13(33)21(24(36)28-18-10-11-19-20(12-18)30-25(37)29-19)32-31-17-8-4-15(5-9-17)23(35)27-16-6-2-14(3-7-16)22(26)34/h2-12,21H,1H3,(H2,26,34)(H,27,35)(H,28,36)(H2,29,30,37)

InChIKey

PXMLTVJEYHGPEH-UHFFFAOYSA-N

LogP

4.12720

Complexity

924

Synonyms & References

English

AKOS016010869
74441-05-7
4-[[4-[[1,3-dioxo-1-[(2-oxo-1,3-dihydrobenzimidazol-5-yl)amino]butan-2-yl]diazenyl]benzoyl]amino]benzamide
Benzamide, N-[4-(aminocarbonyl)phenyl]-4-[[1-[[(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)amino]carbonyl]-2-oxopropyl]azo]-
Benzamide, N-(4-(aminocarbonyl)phenyl)-4-(2-(1-(((2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)amino)carbonyl)-2-oxopropyl)diazenyl)-
EC 277-873-1
EINECS 277-873-1
N-[4-(AMINOCARBONYL)PHENYL]-4-[[1-[[(2,3-DIHYDRO-2-OXO-1H-BENZIMIDAZOL-5-YL)AMINO]CARBONYL]-2-OXOPROPYL]AZO]BENZAMIDE
SCHEMBL1374976
DTXSID3052486
SCHEMBL1374982
NS00007946
Benzamide, N-(4-(aminocarbonyl)phenyl)-4-((1-(((2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)amino)carbonyl)-2-oxopropyl)azo)-
N-(4-(Aminocarbonyl)phenyl)-4-((1-(((2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)amino)carbonyl)-2-oxopropyl)azo)benzamide
Pigment Yellow 181
C.I. 11777
N-(4-Carbamoylphenyl)-4-[2-oxo-1-[(2-oxo-1,3-dihydrobenzoimidazol-5-yl)carbamoyl]propyl]diazenyl-benzamide

MDL Number

MFCD19442858

FAQ

What are the physical and chemical properties of Pigment Yellow 181 (CAS: 74441-05-7)?

Pigment Yellow 181 (CAS: 74441-05-7) is a yellow organic pigment. It has a crystalline form and a molecular weight of approximately 474.4 g/mol. It is poorly soluble in water but soluble in organic solvents. Chemically, it has good light and heat stability, and minimal migration properties, making it suitable for a variety of applications.

How is Pigment Yellow 181 (CAS: 74441-05-7) typically synthesized?

Pigment Yellow 181 (CAS: 74441-05-7) is synthesized through a multistep process, including condensation and oxidation reactions. Commonly, it involves the reaction of 2,5-bis(2-hydroxy-3-sulfophenyl)-1,3,4-thiadiazole with 4,4-dichloro-2,2-bis(2,5-dihydroxyphenyl)sulfone, followed by further processing to achieve the desired pigment form. This process typically uses specific catalysts to improve yield and selectivity.

What industries use Pigment Yellow 181 (CAS: 74441-05-7)?

Pigment Yellow 181 (CAS: 74441-05-7) is widely used in the textile, printing ink, and plastics industries due to its excellent light and heat stability. It is also utilized in coatings and paper coloring, providing vibrant yellow hues. Additionally, it can be found in some pharmaceutical and cosmetic products for coloring purposes.

What precautions should be taken when handling Pigment Yellow 181 (CAS: 74441-05-7)?

When handling Pigment Yellow 181 (CAS: 74441-05-7), it is important to wear appropriate personal protective equipment such as gloves and goggles. Store it in a cool, well-ventilated area, away from sources of ignition and incompatible materials. If a spill occurs, avoid direct contact and use appropriate spill kits or absorbents to contain the material. Always refer to the Safety Data Sheet (SDS) for detailed handling and safety information.