LITHOLRUBINE

Litholrubine is a synthetic red colorant commonly classified as an azo dye.
Litholrubine is often marketed under the name Lithol Rubine BK in certain specifications.
Litholrubine is typically supplied as a red powder or granulated material depending on grade.

CAS Number: 569-64-2
EC Number: 209-347-6
Molecular Formula: C20H13N2NaO4S
Molecular Weight: 396.37 g/mol

Synonyms: Litholrubine, Lithol Rubine, Lithol Rubine BK, Litholrubine BK, Lithol Rubine B, Pigment Red 57 (common pigment family reference), Lithol Rubine Lake, D&C Red 34 (common designation in some contexts), CI 15850, CI 15850:1 (common related designation), Litholrubine Sodium Salt, Azo Red Litholrubine, Litholrubine, Lithol Rubine, Lithol Rubine BK, Lithol Rubine B, Lithol Rubine 4B, Lithol Rubine 2B, Lithol Rubine BCA, Lithol Rubine Lake, Lithol Rubine Calcium Lake, Lithol Rubine Pigment, Litholrubine BK, Litholrubine B, Litholrubine 4B, Litholrubine 2B, Litholrubine Lake, Pigment Red 57, Pigment Red 57:1, PR 57, PR57, PR 57:1, PR57:1, C.I. Pigment Red 57, C.I. Pigment Red 57:1, CI Pigment Red 57, CI Pigment Red 57:1, C.I. 15850, CI 15850, Colour Index 15850, Color Index 15850, Colour Index Pigment Red 57:1, Color Index Pigment Red 57:1, Red 57:1, Red 57, Lithol Rubine PR57:1, Lithol Rubine PR57, D&C Red No. 30, D and C Red No. 30, D&C Red 30, D and C Red 30, DC Red No. 30, DC Red 30, D&C Red No. 30 Lake, D and C Red No. 30 Lake, D&C Red 30 Lake, D and C Red 30 Lake, Red No. 30 Lake, Red 30 Lake, Cosmetic Red 30 Lake, Calcium Lithol Rubine, Calcium Litholrubine, Calcium Salt of Lithol Rubine, Calcium Salt of Pigment Red 57, Calcium Salt of Pigment Red 57:1, Calcium Lake of Pigment Red 57, Calcium Lake of Pigment Red 57:1, Calcium Lake Red 57:1, Calcium Lake CI 15850, Lithol Rubine Dye, Lithol Rubine Toner, Lithol Rubine Lake Pigment, Lithol Rubine Printing Ink Pigment, Lithol Rubine Plastic Pigment, Lithol Rubine Cosmetic Pigment

APPLICATIONS

Litholrubine is used as a synthetic red colorant in confectionery products where permitted.
Litholrubine is used in sugar coatings and dragée systems to achieve vivid red to pink shades where permitted.
Litholrubine is used in cake decorations, icings, and fondant items to standardize red coloration where permitted.

Litholrubine is used in chewing gum coatings to create bright, uniform color distribution where permitted.
Litholrubine is used in dessert toppings and gel decorations to deliver stable red-toned appearance where permitted.
Litholrubine is used in flavored syrups and beverage bases to provide consistent red coloration in compliant markets.

Litholrubine is used as a pharmaceutical colorant for tablet film coatings where permitted.
Litholrubine is used to color capsule shells for product identification in approved applications.
Litholrubine is used in chewable tablets and lozenges to improve visual differentiation where permitted.

Litholrubine is used in oral liquid medicines to standardize appearance where permitted.
Litholrubine is used in vitamin syrups and supplement liquids to support brand color identity where permitted.
Litholrubine is used in over-the-counter dosage forms to reduce look-alike confusion in regulated formats.

Litholrubine is used as a cosmetic color additive in lip products where allowed.
Litholrubine is used in blush and face makeup products as part of red pigment blends where allowed.
Litholrubine is used in tinted balms and creams to tune shade and improve batch consistency where allowed.

Litholrubine is used in liquid soaps and shower gels to create pink or red tones where allowed.
Litholrubine is used in bath products such as bath salts and bath bombs to provide decorative coloration where allowed.
Litholrubine is used in toothpaste and oral gels as a color additive in markets that permit its use.

Litholrubine is used in packaging and labeling inks to create red brand elements.
Litholrubine is used in printing inks for cartons, leaflets, and labels where a strong red tone is needed.
Litholrubine is used as a component in flexographic and gravure ink shade systems for consistent red hues.

Litholrubine is used in paper coloration for specialty red or pink paper products.
Litholrubine is used in coated paper and decorative prints to achieve bright red tonal effects.
Litholrubine is used in paper and ink testing as a reference colorant for color strength comparisons.

Litholrubine is used in plastics coloration via masterbatch systems where compatible and appropriate.
Litholrubine is used to tint certain polymer parts with red or pink shades under suitable processing conditions.
Litholrubine is used in polymer films and molded items to meet specific shade targets in non-food-contact applications.

Litholrubine is used in coatings and paints for controlled color matching in specialty applications.
Litholrubine is used in decorative coatings for consumer goods where a vivid red tone is desired.
Litholrubine is used in varnishes and decorative finishes to produce bright, consistent red appearance.

Litholrubine is used in lake pigment concepts to improve performance in fat-rich or insoluble systems when converted to a lake form.
Litholrubine is used in dry color blends with other permitted dyes to tune hue and chroma.
Litholrubine is used in premix concentrates to improve dosing accuracy and handling convenience in manufacturing.

Litholrubine is used in microencapsulation research to reduce bleeding and improve handling in aqueous matrices.
Litholrubine is used in packaging migration studies to evaluate colorant movement under standardized test conditions.
Litholrubine is used in barrier coating research to reduce color transfer and maintain appearance stability.

Litholrubine is used in food model systems to study light-induced fading of red colorants.
Litholrubine is used in heat-processing trials to evaluate color retention during thermal steps.
Litholrubine is used in pH-stress studies to map shade stability windows in prototype formulations.

Litholrubine is used as a marker compound in chromatography demonstrations and teaching laboratories.
Litholrubine is used in UV-Vis spectroscopy demonstrations because of strong visible absorbance.
Litholrubine is used in calibration solutions to compare color intensity and batch-to-batch consistency.

Litholrubine is used in education to teach structure–color relationships of azo dyes.
Litholrubine is used in formulation training to demonstrate dispersion, dissolution, and shade control techniques.
Litholrubine is used in troubleshooting work to identify causes of streaking, specking, or uneven coloration.

Litholrubine is used in pilot-scale blending to optimize mixing order, shear, and addition points for uniform color.
Litholrubine is used in stability programs to monitor sedimentation, precipitation, and color drift in colored liquids.
Litholrubine is used in accelerated aging studies to evaluate long-term shade consistency under stress conditions.

Litholrubine is used in sensory research to study how red color intensity changes flavor expectations.
Litholrubine is used in consumer testing to align shade targets with brand standards and product positioning.

Litholrubine is used in lipsticks to provide bright red hues and strong tinting performance in compatible formulations.
Litholrubine is incorporated into lip balms and lip tints to achieve stable red coloration with controlled shade.
Litholrubine is used in lip glosses to enhance color intensity and improve visual appeal.

Litholrubine is used in blushes and cheek tints to deliver vivid pink-red tones and consistent shade control.
Litholrubine is incorporated into pressed powders to improve color payoff and uniformity when properly dispersed.
Litholrubine is used in cream makeup products where stable red pigments are required.

Litholrubine is used in nail products to provide red coloration in lacquers and gel systems when compatible and permitted.
Litholrubine is incorporated into nail coatings to improve shade consistency and opacity.
Litholrubine is used in decorative cosmetics where high chroma red color is needed.

Litholrubine is used in soaps and bath products to provide red or pink coloration in compatible systems.
Litholrubine is incorporated into shower gels to enhance product appearance and support consistent color.
Litholrubine is used in bath bombs and bath salts where vivid color improves consumer appeal.

Litholrubine is used in pharmaceutical tablet coatings to provide red coloration for product identification.
Litholrubine is incorporated into capsule shells and printed markings where controlled color is required.
Litholrubine is used in syrups and oral dosage forms in regions where Litholrubine is allowed for pharmaceutical coloring.

Litholrubine is used in food-contact research and packaging inks in controlled applications where regulatory compliance is met.
Litholrubine is incorporated into printing inks to achieve bright red shades and strong pigment performance.
Litholrubine is used in label inks where high tinting strength improves efficiency and shade accuracy.

Litholrubine is used in coatings and paints as a red pigment component where bright shade and cost-effective coloration are desired.
Litholrubine is incorporated into industrial coatings to adjust hue and improve chroma in red color blends.
Litholrubine is used in plastic masterbatches where stable red coloration and dispersion are required.

Litholrubine is used in rubber and elastomer coloration to provide bright red tones in compatible processing conditions.
Litholrubine is incorporated into molded goods where pigment stability during heat processing is verified.
Litholrubine is used in specialty polymer applications where shade control is critical.

Litholrubine is used in artist materials and specialty inks to provide strong red color and blendability.
Litholrubine is incorporated into color mixes to tune pink-red shades and improve brightness.
Litholrubine is used in educational and laboratory settings as a reference colorant for pigment dispersion studies.

Litholrubine is used in quality control to standardize red shade targets and evaluate batch-to-batch color consistency.
Litholrubine is incorporated into color matching systems where reproducible shade is required.
Litholrubine is valued because Litholrubine provides bright, high-strength red coloration across many compatible applications under proper regulatory control.

DESCRIPTION

Litholrubine can be supplied in dye form or as a lake pigment form depending on application needs.
Litholrubine color strength depends on purity, manufacturing route, and particle characteristics.
Litholrubine hue can vary with concentration, background formulation color, and blending with other colorants.

Litholrubine solubility depends on the exact form of Litholrubine and the solvent system used.
Litholrubine dispersibility improves when Litholrubine is properly prewetted and mixed under suitable shear.
Litholrubine can bleed or migrate in some matrices if Litholrubine is not adequately fixed or encapsulated.

Litholrubine stability depends on exposure to light, heat, oxygen, and pH conditions.
Litholrubine can fade under strong UV exposure if Litholrubine is not protected by packaging or stabilizers.
Litholrubine can show different stability profiles in aqueous versus oily systems depending on Litholrubine form and formulation design.

Litholrubine is typically supplied as a red powder or lake pigment form, and the exact salt or lake composition can influence dispersibility and shade.
Litholrubine is an azo dye-based colorant, and Litholrubine may be supplied as a sodium salt or as an insoluble lake on an inorganic substrate depending on application needs.
Litholrubine color strength and shade depend on particle size, dispersion quality, and the formulation matrix, so proper milling and wetting are important.

Litholrubine generally shows good stability in many systems but can be sensitive to strong oxidizers, extreme pH, or certain chemical environments.
Litholrubine use in cosmetics and pharmaceuticals is regulated, and permitted applications, concentration limits, and purity specifications vary by country and region.
Litholrubine should be handled to minimize dust exposure and to prevent contamination of production areas because red pigments can stain surfaces.

Litholrubine should be stored in tightly closed containers in a cool, dry place away from strong light and incompatible chemicals.
Litholrubine should be protected from moisture to maintain flowability and prevent clumping in powdered forms.
Litholrubine should be used with good manufacturing practices and appropriate documentation to confirm compliance with the intended market regulations.

PROPERTIES

Chemical Formula: C20H13N2NaO4S
Molecular Weight: 396.37 g/mol
Common Name: Litholrubine
Chemical Type: Azo dye / lake pigment (application form dependent)
Appearance: Red powder or pigment (lake form dependent)
Odor: Odorless or faint characteristic odor
Solubility: Solubility depends on form; many lake pigments are insoluble and dispersible rather than soluble
Color Shade: Bright red to pink-red (system dependent)
Tinting Strength: High tinting strength typical of azo reds
Light Stability: Good to moderate (grade and system dependent)
Heat Stability: Generally suitable for many processing conditions (system dependent)
pH Stability: System dependent; extreme pH can affect shade or stability
Incompatibilities: Strong oxidizers and harsh chemical environments
Storage Temperature: 15–25°C, dry, tightly closed
Shelf Life: Typically 24–36 months in original sealed packaging (supplier dependent)

FIRST AID

Inhalation:
Move to fresh air if dust is inhaled.
Seek medical attention if respiratory irritation persists.
Avoid breathing dust during handling and weighing.

Skin Contact:
Wash with soap and water after contact.
Remove contaminated clothing and wash before reuse.
Seek medical advice if irritation develops or persists.

Eye Contact:
Rinse cautiously with water for several minutes.
Remove contact lenses if present and easy to do, then continue rinsing.
Seek medical attention if irritation persists.

Ingestion:
Rinse mouth with water.
Seek medical attention if a large amount is swallowed or discomfort occurs.
Never give anything by mouth to an unconscious person.

Note to Physicians:
Treat symptomatically.
No specific antidote is required.
Provide supportive care based on exposure route and symptoms.

HANDLING AND STORAGE

Handling:
Use appropriate PPE including gloves and safety glasses.
Avoid generating dust and avoid inhalation of fine powder.
Wash hands after handling and before eating, drinking, or smoking.

Ventilation:
Use local exhaust or general ventilation where dust may be generated.
Maintain good airflow during charging and mixing operations.
Minimize airborne particulate accumulation in enclosed areas.

Storage:
Store in a cool, dry place in tightly closed containers.
Protect from moisture, contamination, and strong light exposure to preserve color quality.
Keep containers properly labeled with batch and compliance information.

Spill and Leak Procedures:
Avoid dust generation and collect spilled material using methods that minimize airborne particles.
Place collected material into suitable containers for disposal according to local regulations and facility procedures.
Clean the area using wet wiping or vacuum systems designed for fine powders to reduce staining and dust.

Handling Precautions:
Verify regulatory compliance for the target market before use in cosmetics, pharmaceuticals, or food-adjacent applications.
Use clean, dedicated equipment to prevent cross-contamination and unwanted staining in production areas.
Rotate stock using FIFO practices to maintain consistent shade, dispersibility, and overall quality.