Product Name

  • Name

    C.I. 20730

  • EINECS 223-460-6
  • CAS No. 3905-19-9
  • Density 1.5 g/cm3
  • Solubility
  • Melting Point
  • Formula C40H24Cl4N6O4
  • Boiling Point 891.41 °C at 760 mmHg
  • Molecular Weight 794.48
  • Flash Point 499.6 °C
  • Transport Information
  • Appearance
  • Safety
  • Risk Codes
  • Molecular Structure Molecular Structure of 3905-19-9 (C.I. 20730)
  • Hazard Symbols
  • Synonyms 4-(2,5-Dichlorophenyl)azo-N-[4-[[4-(2,5-dichlorophenyl)azo-3-hydroxy-naphthalene-2-carbonyl]amino]phenyl]-3-hydroxy-naphthalene-2-carboxamide;
  • PSA 148.10000
  • LogP 13.49920

Pigment Red 166 Specification

The Pigment Red 166, with the CAS number 3905-19-9, is also called 4-(2,5-Dichlorophenyl)azo-N-[4-[[4-(2,5-dichlorophenyl)azo-3-hydroxy-naphthalene-2-carbonyl]amino]phenyl]-3-hydroxy-naphthalene-2-carboxamide. The chemical belongs to the following product categories of Dyes and Pigments; Organics.

The properties of the chemical are: (1)ACD/LogP: 12.33; (2)# of Rule of 5 Violations: 3; (3)ACD/LogD (pH 5.5): 12.334; (4)ACD/LogD (pH 7.4): 12.334; (5)ACD/BCF (pH 5.5): 1000000; (6)ACD/BCF (pH 7.4): 1000000; (7)ACD/KOC (pH 5.5): 10000000; (8)ACD/KOC (pH 7.4): 10000000; (9)#H bond acceptors: 10; (10)#H bond donors: 4; (11)#Freely Rotating Bonds: 10; (12)Polar Surface Area: 148.1 Å2; (13)Index of Refraction: 1.72; (14)Molar Refractivity: 209.192 cm3; (15)Molar Volume: 529.584 cm3; (16)Polarizability: 82.93×10-24cm3; (17)Surface Tension: 59.664 dyne/cm ; (18)Enthalpy of Vaporization: 133.985 kJ/mol; (19)Vapour Pressure: 0 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)SMILES: c1ccc2c(c1)cc(c(c2N=Nc3cc(ccc3Cl)Cl)O)C(=O)Nc4ccc(cc4)NC(=O)c5cc6ccccc6c(c5O)N=Nc7cc(ccc7Cl)Cl
(2)InChI: InChI=1/C40H24Cl4N6O4/c41-23-9-15-31(43)33(19-23)47-49-35-27-7-3-1-5-21(27)17-29(37(35)51)39(53)45-25-11-13-26(14-12-25)46-40(54)30-18-22-6-2-4-8-28(22)36(38(30)52)50-48-34-20-24(42)10-16-32(34)44/h1-20,51-52H,(H,45,53)(H,46,54)

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