Pigments & Colorants
REACH
Pigment red 81
CAS Number
12224-98-5
EC Number
235-424-7
What is Pigment red 81?
Pigment Red 81 (CAS 12224-98-5), also known as C.I. 45160 Lake, is a fluorescent organic pigment derived from the rhodamine 6G cation.
Where is Pigment red 81 used?
- Printing inks: fluorescent brightness in offset and packaging applications
- Textile and paper dyeing: surface coloration with strong visual impact
- Coatings: colorant in architectural and specialty paints
- Adhesives and sealants: colorant for batch identification or product differentiation
- It delivers a brilliant, high-chroma pink-red shade.
Good to know: No established food or pharmaceutical grade designations exist for this pigment.
Commercial specifications
- Particle size and resin compatibility vary by supplier specification
Other Names (Synonyms)
C.I. Pigment Red 80|C.I. 45160 Lake|rhodamine 6G cation|923TYK19HG|9-(2-(Ethoxycarbonyl)phenyl)-3,6-bis(ethylamino)-2,7-dimethylxanthylium|No. 65 Forthbrite Pink
What are the physical properties of Pigment red 81?
Boiling Point 594.02°C[at 101 325 Pa]
Density 1.18[at 20℃]
Water Solubility 1g/L at 18.5℃
Vapor Pressure 0Pa at 25℃
Log P 7.436 at 25℃
How is Pigment red 81 classified and handled safely? Learn More
Danger
GHS05· Corrosive GHS09· Environmental Hazard
Hazard Statements
H318 Causes serious eye damage
H400 Very toxic to aquatic life
H410 Very toxic to aquatic life with long lasting effects
Precautionary Statements
P273 Avoid release to the environment.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P317 Get emergency medical help.
P391 Collect spillage.