FULL SHADEP.Y.191:1
TINT
Digital color reference · physical approval required
HIGH-PERFORMANCE PIGMENTS
Pigment Yellow 191:1
Pigment Yellow 191:1 is a reddish monoazo yellow listed for PVC, polyolefins and selected engineering-polymer and fiber applications. It has a separate CAS identity from P.Y.191; technical and compositional data for the two Color Index entries should be maintained separately.
- Color Index / grade
- P.Y.191:1
- CAS
- 154946-66-4
- Chemical family
- Monoazo pigment
- Published heat resistance
- 280 °C
Typical application scopePlastics & masterbatch
PRODUCT PROFILE
P.Y.191:1Pigment Yellow 191:1 — grade profile
Pigment Yellow 191:1 (P.Y.191:1) is a monoazo pigment for Plastics & masterbatch 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 280 °C. Application-specific heat and fastness entries in the technical table take precedence.
Primary listed fits include PVC, Polyolefins (PO), Polystyrene (PS) and ABS.
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 Unpublished values are omitted.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 191:1
Color Index / product gradeP.Y.191:1
Colorant categoryHigh-performance pigments
CAS number154946-66-4
C.I. constitution number18795
Chemical familyMonoazo pigment
Physical appearanceColored powder
Heat resistance · catalogue reference280 °C
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)ABS
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Application listings support initial selection and still require validation in the customer's resin, binder, process and end-use conditions.