Article · Wikipedia archive · Last revised Jul 29, 2026

Oil Blue A

Oil Blue A is a blue anthraquinone dye used for colouring certain plastics such as polystyrene and acrylic resins, as well as other materials such as petroleum and inks. It has good resistance to light.

Last revised
Jul 29, 2026
Read time
≈ 1 min
Length
163 w
Citations
2
Source
Wikipedia ↗
Oil Blue A
Skeletal formula
Skeletal formula source ↗
Ball-and-stick model
Ball-and-stick model source ↗
Names
Preferred IUPAC name
1,4-Bis[(propan-2-yl)amino]anthracene-9,10-dione
Other names
  • Unisol Blue AS
  • Solvent Blue 36
  • Solvent Blue A
  • Oil Blue G
  • Blue AP
  • CI 61551
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.034.622
EC Number
  • 238-101-9
MeSH C018468
UNII
  • InChI=1S/C20H22N2O2/c1-11(2)21-15-9-10-16(22-12(3)4)18-17(15)19(23)13-7-5-6-8-14(13)20(18)24/h5-12,21-22H,1-4H3
    Key: BLFZMXOCPASACY-UHFFFAOYSA-N
  • InChI=1/C20H22N2O2/c1-11(2)21-15-9-10-16(22-12(3)4)18-17(15)19(23)13-7-5-6-8-14(13)20(18)24/h5-12,21-22H,1-4H3
    Key: BLFZMXOCPASACY-UHFFFAOYAP
  • O=C2c1ccccc1C(c3c2c(NC(C)C)ccc3NC(C)C)=O
Properties
C20H22N2O2
Molar mass 322.408 g·mol−1
Melting point 133–135 °C (271–275 °F; 406–408 K)
insoluble
Solubility acetone, benzene, and toluene
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Oil Blue A is a blue anthraquinone dye1 used for colouring certain plastics such as polystyrene and acrylic resins, as well as other materials such as petroleum and inks. It has good resistance to light.1

See also

See also

References

References

  1. "Oil Blue A - Royce Global". polymer-additives.specialchem.com. Retrieved 2022-11-23.