Product Name

  • Name

    Pigment Yellow 151

  • EINECS 250-830-4
  • CAS No. 31837-42-0
  • Article Data3
  • CAS DataBase
  • Density 1.55 g/cm3
  • Solubility 17.8μg/L at 25℃
  • Melting Point
  • Formula C18H15N5O5
  • Boiling Point 546.6 °C at 760 mmHg
  • Molecular Weight 381.348
  • Flash Point 284.4 °C
  • Transport Information
  • Appearance bright yellow powder
  • Safety
  • Risk Codes
  • Molecular Structure Molecular Structure of 31837-42-0 (Pigment Yellow 151)
  • Hazard Symbols
  • Synonyms Benzoicacid, 2-[[1-[[(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)amino]carbonyl]-2-oxopropyl]azo]-(9CI);5-[2-[(o-Carboxyphenyl)azo]acetoacetamido]-2-benzimidazolinone;C.I.Pigment Yellow 151;Chromofine Yellow 307;Hostaperm Yellow H 4G;Benzoic acid,2-[2-[1-[[(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)amino]carbonyl]-2-oxopropyl]diazenyl]-;Irgazin Yellow 2088;Ket Yellow 416;SymulerFast Yellow 4GO;
  • PSA 156.84000
  • LogP 2.30740

Pigment Yellow 151 Chemical Properties


IUPAC Name: 2-[1,3-dioxo-1-[(2-oxo-1,3-dihydrobenzimidazol-5-yl)amino]butan-2-yl]diazenylbenzoic acid
Molecular Formula: C18H15N5O5
Molecular Weight: 381.35 g/mol
SMILES: C(c1c(cccc1)\N=N\[C@@H](C(C)=O)C(=O)Nc1cc2[nH]c([nH]c2cc1)=O)(=O)O
InChI: InChI=1/C18H15N5O5/c1-9(24)15(23-22-12-5-3-2-4-11(12)17(26)27)16(25)19-10-6-7-13-14(8-10)21-18(28)20-13/h2-8,15H,1H3,(H,19,25)(H,26,27)(H2,20,21,28)/b23-22+
EINECS: 250-830-4
Product Categories: Organics
XLogP3-AA: 1.7
H-Bond Donor: 4
H-Bond Acceptor: 7
Density: 1.55 g/cm3
Flash Point: 284.4 °C
Enthalpy of Vaporization: 86.89 kJ/mol
Boiling Point: 546.6 °C at 760 mmHg
Vapour Pressure of Pigment Yellow 151 (CAS NO.31837-42-0): 8.84E-13 mmHg at 25 °C

Pigment Yellow 151 Specification

  Pigment Yellow 151 (CAS NO.31837-42-0), its Synonyms are 2-((1-(((2,3-Dihydro-2-oxo-1H-benzimidazol-5-yl)amino)carbonyl)-2-oxopropyl)azo)benzoic acid ; Benzoic acid, 2-((1-(((2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)amino)carbonyl)-2-oxopropyl)azo)- ; Benzoic acid, 2-(2-(1-(((2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)amino)carbonyl)-2-oxopropyl)diazenyl)- ; Benzoic acid, 2-((1-(((2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)amino)carbonyl)-2-oxopropyl)azo) .

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