Pigment blue 1

CAS Number

1325-87-7

EC Number

215-410-7

What is Pigment blue 1?

Pigment Blue 1 (CAS 1325-87-7), also known as C.I. Pigment Blue 1, is a triarylmethane-based organic pigment delivering a bright, reddish-blue shade.

Printing inks: high-chroma blue tones for packaging
Coatings: architectural and industrial finishes with a clean, saturated blue at low pigment loading
Textile and paper dyeing: consistent surface coloration where cost-effective blue shading is prioritized over extreme lightfastness
Plastics: mass coloration of polymer substrates, including packaging films and molded articles
Colorant formulations select it for vivid hue intensity and tinting strength.

Technical grade standard; particle size and dispersibility specifications vary by end-use
Packaging from small drums to bulk quantities

[4-[bis[4-(diethylamino)phenyl]methylidene]naphthalen-1-ylidene]-ethylazanium|ALMMLSQBERCMRB-UHFFFAOYSA-O|C.I. Pigment Blue 1|Cascade Blue

Density 2.003[at 20℃]

Water Solubility 100μg/L at 20℃

Vapor Pressure 0Pa at 25℃

Log P 1 at 20℃

Danger

GHS05· Corrosive GHS09· Environmental Hazard

H318 Causes serious eye damage

H400 Very toxic to aquatic life

H410 Very toxic to aquatic life with long lasting effects

H413 May cause long lasting harmful effects to aquatic life

P273 Avoid release to the environment.

P280 Wear protective gloves/protective clothing/eye protection/face protection.

P317 Get emergency medical help.

P391 Collect spillage.