Description

Fd And C Orange No. 4 is a synthetic, water-soluble azo dye certified for use in foods, drugs, and cosmetics. This certified colorant provides a stable and vibrant orange hue, essential for product appeal and brand consistency in consumer goods. It is a critical ingredient for manufacturers in the food, pharmaceutical, and personal care industries seeking reliable and compliant coloring solutions. Consistent quality and supply chain integrity are paramount for its application in regulated products.

Application

• Coloring of food products such as beverages, confectionery, dairy products, and baked goods.
• Pharmaceutical applications, including the coating of tablets and capsules for identification and aesthetic purposes.
• Manufacturing of cosmetics and personal care items like soaps, shampoos, and lotions.
• Used in the production of dietary supplements and vitamin preparations.
• Coloring agent for pet foods and veterinary products.
• Potential use in industrial applications requiring a non-toxic orange dye, such as inks or paper.

Basic Information

Product Name	Fd And C Orange No. 4
CAS No.	69458-80-6
Molecular Formula	C18H14N2Na2O8S2
Molecular Weight	496.42 g/mol
Synonyms	FD&C Orange No. 4; Food Orange 4; CI 16255; Acid Orange 7; Orange II Sodium Salt; 2-Naphthol Orange; Tropaeolin OO; 4-[(2-Hydroxy-1-naphthalenyl)azo]benzenesulfonic acid monosodium salt
EINECS	Contact for details

Quality Control

Our Fd And C Orange No. 4 is manufactured and tested to meet stringent global standards for certified color additives, including FDA 21 CFR 74.1254 and Food Chemicals Codex (FCC) specifications. Every batch undergoes rigorous quality testing to ensure compliance with identity, strength, and purity requirements. Comprehensive Certificates of Analysis (COA) documenting assay, heavy metal limits, subsidiary colors, and other critical parameters are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect performance and stability.

Specification

Item	Specification
Appearance	Orange to reddish-orange powder
Identification (IR)	Conforms to standard
Assay (Color Strength)	Min. 85%
Loss on Drying	Max. 10.0%
Water Insoluble Matter	Max. 0.2%
Subsidiary Colors	Meets FCC requirements
Heavy Metals (as Pb)	Max. 10 ppm
Arsenic (As)	Max. 3 ppm
Lead (Pb)	Max. 10 ppm
Mercury (Hg)	Max. 1 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.