FULL SHADEP.Y.181
TINT
Digital color reference · physical approval required
HIGH-PERFORMANCE PIGMENTS
Pigment Yellow 181
Pigment Yellow 181 is a red-shade benzimidazolone yellow used in plastics, polypropylene fibers and selected coatings and inks. It provides a warmer alternative to green-shade yellows; evaluation should include shade, dispersion and the thermal history of the finished application.
- Color Index / grade
- P.Y.181
- CAS
- 74441-05-7
- Chemical family
- Benzimidazolone pigment
- Published heat resistance
- 300 °C
- Light fastness
- 7 / 8
Typical application scopePlastics & masterbatch · Coatings & paint · Printing inks · Textiles & fibers
PRODUCT PROFILE
P.Y.181Pigment Yellow 181 — grade profile
Pigment Yellow 181 (P.Y.181) is a benzimidazolone pigment for Plastics & masterbatch, Coatings & paint, Printing inks and Textiles & fibers where processing stability and durability are defined selection criteria. Evaluate the grade in the intended resin or binder at the target loading and process conditions; every value below retains its published source and application context.
Published screening data includes published heat reference 300 °C and light fastness 7/8. Application-specific heat and fastness entries in the technical table take precedence.
Primary listed fits include PVC, Polyolefins (PO), Polystyrene (PS), ABS, PP fiber and General coatings screening.
Selection focus
At equal loading and dispersion, compare full shade, tint, transparency or opacity, heat stability, migration and the intended exposure conditions.
REFERENCE SHADE
Full shade and tint
Red-shade yellow
Full shade
Tint / reduction
Manufacturer-published shade descriptions were used to correct the color direction. Screen colors remain visual references, not batch standards; approve a physical drawdown or molded plaque under agreed test conditions.
TECHNICAL DATA
Published specifications
Only identified or numerical fields supported by public registry and product-table data are shown. Unpublished values are omitted.
ParameterPublished value
Product namePigment Yellow 181
Color Index / product gradeP.Y.181
Colorant categoryHigh-performance pigments
CAS number74441-05-7
EC number277-873-1
C.I. constitution number11777
Molecular formulaC25H21N7O5
Molecular weight499.5 g/mol
Chemical familyBenzimidazolone pigment
Physical appearanceColored powder
Heat resistance · catalogue reference300 °C
Light fastness7 / 8
Water resistance5 / 5
Oil resistance4–5 / 5
Acid resistance4–5 / 5
Alkali resistance4–5 / 5
Performance values are catalogue references. The current grade TDS, test conditions and agreed batch COA govern product approval.
APPLICATION CHART
Recommended systems at a glance
Application areaRecommendedEvaluate
Plastics & masterbatch
PVCPolyolefins (PO)Polystyrene (PS)ABSPP fiber
—
Coatings & paint
General coatings screening
—
Printing inks
General printing-ink screening
—
Application listings support initial selection and still require validation in the customer's resin, binder, process and end-use conditions.