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Pigment red 81

CAS Number
12224-98-5
EC Number
235-424-7
Chemical Formula
C28H31N2O3.xUnspecified
Molecular Weight
443.6 g/mol

Description

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. It delivers a brilliant, high-chroma pink-red shade across a range of substrate types. This pigment is a recognized choice where vivid color intensity is the primary performance requirement. In printing inks, particularly offset and packaging applications, it provides fluorescent brightness that standard pigments cannot achieve. Textile and paper dyeing operations use it where surface coloration with strong visual impact is required. It is especially effective in decorative and promotional materials where high visibility is a key design factor. Coatings formulators incorporate it into architectural and specialty paints targeting aesthetic-driven end products. In adhesives and sealant systems, it functions as a colorant where batch identification or product differentiation is needed. The material is supplied as a dry powder, typically in press cake or flushed paste form depending on processing requirements. It is available in standard commercial grades suited to printing ink and coating applications. Particle size and resin compatibility vary by supplier specification to meet diverse industrial needs. Technical-grade material is the predominant market offering for this specific organic pigment type. There are currently no established food or pharmaceutical grade designations for this pigment. It is manufactured to meet rigorous industrial quality standards to ensure consistency across large production batches. Contact us for supply of Pigment red 81 Request Quote

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

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Boiling Point594.02°C[at 101 325 Pa]
Density1.18[at 20℃]
Water Solubility1g/L at 18.5℃
Vapor Pressure0Pa at 25℃
Log P7.436 at 25℃

Safety & Handling

Danger
GHS05· CorrosiveGHS09· Environment

Hazard Statements

H318Causes serious eye damage
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects

Precautionary Statements

P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P317Get emergency medical help.
P391Collect spillage.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.